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  • 1965-1969
  • 1960-1964  (938)
  • 1890-1899
  • 1961  (938)
  • Polymer and Materials Science  (938)
Material
Years
  • 1965-1969
  • 1960-1964  (938)
  • 1890-1899
Year
  • 101
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 795-795 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 102
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 103
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 786-794 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 104
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 795-795 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 105
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 106
    Electronic Resource
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 796-796 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 107
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 108
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 800-800 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 109
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. XXXVI 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 110
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 892-948 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 111
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 1029-1049 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 112
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 1050-1093 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 113
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 1105-1110 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
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  • 114
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 949-1028 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
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  • 115
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    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 1094-1104 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 116
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 451-458 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 117
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 118
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 472-472 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 119
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    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961) 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 120
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    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 1-10 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Corrosion of metal in wooden casingsCertain woods (e.g. beech and oak) contain up to 5 per cent, combined acid, mainly acetic acid. During furnace drying and steam treatment, a considerable quantity of acetic acid is released which, being volatile, is liable to promote corrosion through the gaseous phase. The dependence of this acid separation on the external conditions and the escape of the acid from the wood during storage have been investigated.Corrosion tests showed that the free acetic acid of the wood does not promote corrosion until the air humidity has reached about 70 per cent. In moist basements, even normally dry and properly packed casings (e.g. clock casing) absorb so much moisture in a matter of days that steel parts begin to rust.Measures to prevent such corrosion include: storing at humidities below approx. 75 per cent., using casing made from adequately seasoned wood (which is relatively free from acid), and wrapping the steel parts to be protected (especially clocks) with VPI paper.
    Notes: Gewisse Holzarten (z.B. Buche und Eiche) enthalten bis zu 5% gebundene Säure, in der Hauptsache Essigsäure. Beim künstlichen Trocknen und beim Dämpfen spaltet sich hiervon in erheblicher Menge freie Essigsäure ab, die, da sie flüchtig ist, über die Gasphase korrosionsbegünstigend wirken kann. Die Abhängigkeit dieser Säureabspaltung von den äußeren Bedingungen und das Entweichen der Säure aus dem Holz bei der Lagerung wurden untersucht.Wie Rostversuche ergaben, wirkte die freie Essigsäure des Holzes erst bei Luftfeuchtigkeiten oberhalb etwa 80% rostbegünstigend. In feuchten Kellern nehmen auch an sich trockene, normal verpackte Gehäuse (z. B. Uhrgehäuse) in einigen Tagen soviel Feuchtigkeit auf, daß Stahlteile zu rosten beginnen.Maßnahmen zur Korrosionsverhütung sind: Lagerung bei Feuchtigkeiten unterhalb etwa 75%, Herstellung der Gehäuse aus genügend abgelagertem und damit säurearmem Holz, Umhüllung der zu schützenden Stahlteile (im besonderen bei Uhren) mit VPI-Papier.
    Additional Material: 4 Ill.
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  • 121
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 46-58 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 122
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 68-68 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 123
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 122-125 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 124
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 125
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 126
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 154-156 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 127
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 177-178 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 128
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 197-197 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 129
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 130
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Cathodic protection of installations embedded in the soil or immersed in waterHaving emphasized the importance and development of cathodic polarisation methods as means of protecting metallic structures embedded in the soil or immersed in water, the author discusses the notion and working of the protective potential. The discussion covers, in some detail, the measuring of the different potentials, the type and effect of the reference electrodes used in cathodic protection, the standard values, the method of well as the determination of a limit value of the protective potential of the polarisation curves and the significance of this limit value as regards the service life of anti-corrosion sheathings of metallic surfaces. By way of example for the successful application of cathodic corrosion protection, a description is given of the drinking water pipeline supplying the islands of Procida and Ischia in the Gulf of Naples which, over a length ofs 6.2 kilometres, runs along the sea bed.
    Notes: Nach Hinweis auf Bedeutung und Entwicklung kathodischer Polarisationsmethoden zum Schutz bodenverlegter oder in Wasser eintauchender metallischer Konstruktionen erörtert Verfasser Begriff und Wirkungsweise des Schutzpotentials. Messung der verschiedenen Potentialwerte, Art und Einfluß der Bezugselektroden beim kathodischen Schutz, Normwerte, Ausführung der Kontrollmessungen sowie Festlegung und Bedeutung eines Grenzwertes des Schutz potentials bzw. der Polarisationskurven für die Lebensdauer korrosionsschützender Umhüllungen metallischer Oberflächen werden eingehend behandelt. Als Beispiel der erfolgreichen Anwendung des kathodischen Korrosionsschutzes wird die im Golf von Neapel auf den Meeresboden verlegte Trinkwasserleitung nach den beiden Inseln Procida und Ischia beschrieben, deren gesamte Unterwasserlänge 6,2 km beträgt.
    Additional Material: 4 Ill.
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  • 131
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 346-350 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 132
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 32-45 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
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  • 133
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 67-67 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 134
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 135
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 360-361 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Corrosion protection in steel ConstructionRegular inspection of protective coatings is indispensable. Special attention should be paid to the particularly dangerous subsurface corrosion. If this has progressed considerably, it becomes necessary to carry out complete de-rusting. The first primer should exclusively consist of adhesive coatings. Disperse and highly concentrated red lead are equally adhesive. Where the weather is liable to change rapidly, special fast-drying varnishes are preferable. Phthalate resin binders are able to form ‘lead soaps’. Fast-dying primers can received the finishing coats earlier. It is only in the finishing coats that the chemical activity of white lead is sufficiently utilized. In connection with suitable binders, red lead primers are also suited for steel structures in water.
    Notes: Die fortlaufende Prüfung der Schutzanstriche ist unerläßlich. Die Unterrostung verdient ihrer Gefährlichkeit wegen besondere Aufmerksamkeit. Weit fortgeschrittene Unterrostung macht Total-Entrostung erforderlich. Für dem ersten Grundanstrich dürfen nur haftfeste Anstrichstoffe verwendet werden. Disperse und hochprozentige Bleimennige sind gleich haftest. Bei wechselhafter Witterung sind schnelltrocknende Spezial-Firnisse vorzuziehen. Phthalatharz-Bindemittel sind zur Bildung von „Bleiseifen“ befähigt. Rasch trocknende Grundierungen können schneller als sonst üblich mit Deckanstrichen versehen werden. Die chemische Aktivität des Bleiweiß kommt nur im Deckanstrich hinreichend zur Geltung. In Verbindung mit geeigneten Bindemitteln ist die Bleimennige-Grundierung auch für Stahlwasserbauten geeignet.
    Additional Material: 3 Ill.
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  • 136
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 369-372 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 137
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 383-403 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 138
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 139
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 411-412 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 140
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 413-416 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Basic behaviour of passive alloysThe corrosion proneness of a base metal such as iron can be considerably reduced by suitable alloying constituents, e. g. chromium, which increase the passivation tendency, either by reducing the current density required for passivation to values of the magnitude of the corrosion current, or by shifting the Flade potential to more electro-negative values. A further possibility consists in adding alloying components where the transition for cathodic hydrogen generation is small so that the initial corrosion current density can be increased to the critical passivation current density. This is the case, for example, if palladium is added to stainless 18/8 steel or to titanium. With a multi-phase alloy, passivity can essentially be created in a similar way, viz. Through a local current effect by increasing the speed of the cathodic reaction.The critical passivation current density reaches a minimum at and above a critical alloy composition which lies at 12 per cent. Cr with Cr-Fe alloys, and at 30 to 40 per cent. Ni with Ni-Cu alloys. The reasons for the observed critical alloy composition are discussed.
    Notes: Die Korrosionsanfälligkeit eines Grundmetalls wie Eisen kann wesentlich durch geeignete Legierungsbestandteile, z.B. Chrom, herabgesetzt werden, welche die Tendenz zur Passivierung erhöhen, indem entweder die zur passivierung erforderliche Stromdichte auf Werte von der Größe des Korrosionsstromes herabgedrückt wird oder das Fladepotential zu unedleren Werten verschoben wird. Eine weitere Möglichkeit besteht darin, Leigierungsbestandteile zuzusetzen, an denen der Übergang für kathodische Wasserstoffentwicklung klein ist, wodurch die anfängliche Korrosionsstromdichte auf die kritische Passivierungsstromdichte erhöht werden kann. Dies ist beispielsweise bei der Zugabe von Palladium zu rostfreiem 18/8-Stahl oder Titan der Fall. Bei einer Mehrphasenlegierung kann Passivität im Grunde genommen auf ähnliche Weise erzeugt werden, und zwar durch Lokalstromwirkung bei Erhöhung der Geschwindigkeit der kathodischen Reaktion.Die kritische Passivierungstromdichte erreicht ein Minimum bei un oberhalb einer kritischen Legierungszusammensetzung, die für Cr-Fe-Legierungen bei 12% Cr und Ni-Cu-Legierungen bei 30 bis 40% Ni liegt. Die Gründe für die beobachtete kritische Legierungszusammensetzung werden diskutiert.
    Additional Material: 6 Ill.
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  • 141
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 446-450 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Additional Material: 2 Tab.
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  • 142
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 150-154 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: The passivity of silver-copper alloys in sodium cyanide solutionsThe passivity phenomena were investigated with two further Ag-Cu alloys 50/50 and 20/80 in different sodium cyanide solutions, with the aid of current density/potential curves. In this connection, the characteristic constants of the Müller-Machu relation, N and n, as well as the free pore surface of the different layers formed during passivation were determined.The passivation process always takes place in three stages. The composition of the different layers and their reaction mechanism are discussed in some detail.
    Notes: Die Passivitätserscheinungen wurden an zwei weiteren Ag-Cu-Legierungen 50/50 sowie 20/80 in verschiedenen Natriumcyanidlösungen an Hand der Stromdichte-Zeit-sowie Stromdichte-Potential-Kurven untersucht. Dabei wurden die charakteristischen Konstanten der Müller-Machu-Beziehung B und n sowie die freie Porenfläche der verschiedenen, während der Passivierung gebildeten Deckschichten berechnet.Die Passivierung geht stets in drei Stufen vor sich. Die Zusammensetzung der dabei auftretenden Deckschichten sowie der Reaktionsmechanismus wurden näher erörtert.
    Additional Material: 8 Ill.
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  • 143
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 486-493 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Chromate treatments of non-ferrous metalsThe present article deals with the prerequisites and working conditions required for the chromate treatment of non-ferrous metals. The treatment takes place in solutions containg chromic acid and some further chemicals. In a matter of seconds, the metals are covered by coatings of between 0.01 and 1 micron thickness which have the effect of improving the corrosion resistance and varnish adhesion.The growth of the chromate conversion coatings follows parabolic laws. The degree of corrosion protection depends on the thickness of the coating and on the presence in the coating of soluble chromate. The chromate treatment does not cause a shift of the metal potential to the electropositive side.The coatings can be distinguished by their inherent colour which may be blueish, yellow, or olive drab. It is also possible to modify the colour shade by adding organic dyes.As the treatment represents a simple dipping process which does not call for special capital investments, chromate treatment is among the most economic methods of surface protection.
    Notes: In dem vorliegenden Aufsatz werden die Voraussetzungen und Arbeitsbedingungen für die Chromatierung von Nichteisenmetallen beschrieben. Die Chromatierung erfolgt in chromsäurehaltigen, mit weiteren Chemikalien versetzten Lösungen. Dabei entstehen auf den Metallen in wenigen Sekunden 0,01 bis 1 μ dicke Deckschichten, die eine Verbesserung der Korrosionbeständigkeit und der Lackhaftung bewirken.Das Wachstum der Chromatierungsschichten läßt sich durch parabolische Zeitgesetze darstellen. Der Korrosionsschutz hängt von der Schichtdicke und von dem Vorhandensein löslichen Chromats in der Schicht ab. Die Chromatierung bewirkt keine Veredelung des Metallpotentials.Die Überzüge lassen sich durch ihre bläuliche, gelbe oder olivgrüne Eigenfarbe unterscheiden. Sie können zusätzlich auch mit organischen Farbstoffen eingefärbt werden.Da es sich um einfache Tauchprozesse handelt, die keine besonderen Investitionen erfordern, gehören die Chromatierverfahren zu dem wirtschaftlichsten Verfahren des Oberflächenschutzes.
    Additional Material: 12 Ill.
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  • 144
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 475-485 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: The formation of amorphous phosphate layers on iron surfacesThe present communication is based on a British Patent by Albright and Wilson which recommends, for the phosphating process, the use of hexa-meta-phosphate baths with the addition of different metal salts and oxidants. The authors' own research work was intended to ascertain the most favourable working conditions for obtaining optimal quality and durability of the amorphous phosphat coatings obtained.Interpreting the mechanism of the formation of amorphous phosphate coatings on iron, reference is made to existing knowledge concerning the inhibition of sodium hexa-meta-phosphate, supplemented by present theories concerning the passivity of metals. It is assumed that the surface of an iron electrode contains anodic spots, giving rise to the electro-chemical reaction Fe → Fe++ + 2∊, as well as cathodic spots covered with iron oxide FexOy, where the electro-chemical reaction 2 H+ + 2∊ → H2 takes place. This gives rise to a local cell with the current iL which, according to W. J. Müller, is associated with potentials ∊a, ∊k and with the resistances Wa, Wk the local cell is characterized by the measured total potential eg and by the potential of the anodic spot, ∊a, to which the corrective factor iLWa is assigned.In the presence of hexa-meta-phosphate and a suitable metal salt, or any complex anion AZ- with the valency z, and after the anodic spots are covered by the phosphate coating, FemAn so that the local current is reduced, the surface of the oxide film FexOy at the cathodic spots is modified to FemAn while the phosphate coating at the original anodic spots is reinforced. This electro-chemical anion exchange can be observed in the presence of Quinhydrone, and can be demonstrated by measuring the total potential of the iron electrode observed. Such measurements also lead to an explanation of the influence of acidity on the phosphating process, and to the determination and the application of a suitable phosphating period under different working conditions.
    Notes: Die vorliegende Mitteilung stützt sich auf ein Englisches Patent von Albright and Wilson, das für die Phosphatierung Hexamtaphosphatbäder unter Zusatz verschiedner Metallsalze und oxydierend wirkender Stoffe empfiehlt. Die eigenen Versuche waren auf die Erforschung der günstigsten Arbeitsbedingungen zur Erzielung einer optimalen Güte und Dauerhaftigkeit der erhaltenen amorphen Phosphatüberzüge gerichtet.Bei der Deutung des Mechanismus der Bildung amorpher Phosphatüberzüge auf Eisen wurde auf bisherige Erkenntnisse über die Inhibition von Natriumhexametaphosphat Bezug genommen, die durch die Vorstellungen über den passiven Zustand der Metalle ergänzt wurden. Vorausgesetzt wird, daß die Oberfläche einer Eisenelektrode anodische Stellen, an denen die elektrochemische Reaktion Fe → Fe++ + 2 ∊ abläuft und kathodische, mit dem Oxyd FexOy bedeckte Stellen aufweist, an welchen die elektrochemische Reaktion 2 H+ + 2 ∊ → H2 abläuft. Hier entsteht ein Lokalelement mit dem Strom iL, der nach W. J. Müller den Potentialen ∊a, ∊k und den Widerständen Wa, Wk zugeordnet ist. Das Lokalelement ist durch das gemessene Gesamtpotential ∊g, das Potential der anodischen Stelle ∊a, der das Korrekturglied iLWa zugeordnet wird, gekennzeichnet.Bei Gegenwart von Hexametaphosphat und einem geeigneten Metallsalz bzw. dem beliebigen z-wertigen komplexen Anion AZ- und nach Abdecken der anodischen Stellen durch die Phosphatschicht FemAn, und des verringerten Lokalstromes wird die Oberfläche der Oxydschicht FexOy an den kathodischen Stellen unter Verstärkung des Phosphatüberzuges an den ursprünglich anodischen Stellen zu der Substanz FemAn verändert. Diese auf elektrochemischen Wege vor sich gehende Auswechslung von Anionen kann bei Gegenwart von Chinhydron verfolgt und durch Messen des Gesamtpotential an der betrachteten Eisen-Elektrode belegt werden. Solche Messungen führen weiter zu der Erklärung des Einflusses der Acidität auf den Phosphatierungsverlauf zur Bestimmung und Anwendung einer geeigneten Phosphatierungsdauer unter verschiedenen Arbeitsbedingungen.
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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  • 146
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 531-532 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 147
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 205-206 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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  • 148
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 231-243 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 149
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 223-230 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: The influence of organic matter on the deposit rate and gloss of nickel coatings generated without currentAn investigation has been carried out into the effect of some organic compounds on the deposit rate and gloss of nickel coatings in the bath working without current. In this connection, both positive and negative catalytic effects are encountered. Most substances increase the gloss, and maxima occur in many cases. These maxima do not occur at the same concentration values as the maxima of the deposit weights. The best gloss was obtained by p-toluole sulphonamide which corresponds to a completely smooth nickel surface.The surface structure of the nickel coatings is governed by the interaction of different factors. Whilst the organic brightening agents generally, rather like inhibitors, reduce the metal deposit in proportion to the concentration of the compounds, the optimum gloss is encountered before the metal surface is completely covered with the brightener film, i.e. as long as a certain porosity still exists. Only when the diaphragm permits a constant rate of seed crystal formatin both parallel and perpendicular to the metal surface, does one obtain homogeneous lowcrystalline nickel crystals which are prerequisite to the formation of glossy metal deposits.
    Notes: Es wurde die Wirkung einiger organischer verbindungen auf die Niederschlagsmengen und den Glanz von Nickel-Überzügen aus dem stromlos arbeitenden Bade untersucht. Hierbei treten sowohl positive als auch negative katalytische Effekte auf. Die meisten Stoffe erhöhen den Glanz, wobei vielfach Maxima auftreten. Diese liegen nicht bei den gleichen Konzentrationswerten wie die Maxima der Niederschlagsgewichte. Den besten Glanz ergab p-Toluolsulfonamid, der einer völlig glatten Nickeloberfläche entspricht.Die Oberflächenstruktur der Nickel überzüge kommt durch Zusammenwirken verschiedener Faktoren zustande. Während die organischen Glanzbildner meist ähnlich wie Inhibitoren die Metallabscheidung proportional der Konzentration der Verbindungen vermindern, tritt das Optimum des Glanzes nicht bei einer vollkommenen Bedeckung der Metalloberfläche mit dem Film des Glanzbildners, also noch bei einer gewissen Porosität, ein, Nur wenn das Diaphragma ein gleichmäßiges Kristallwachstum, bei gleichzeitiger hoher Keimzahl sowohl parallel als auch senkrecht zur Metalloberfläche gestattet, entstehen homogene, kleine Nickelkristalle, welche die Bedingung für die Bildung glänzender Metallniederschläge sind.
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 250-251 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 259-259 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 266-266 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 153
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 277-279 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: The influence of some colloids on the corrosion of brassThe influence of gelatin, pulvis acacia, dextrin, agar, egg albumen and potato starch on the corrosion of α and α/β brass in malic acid and ammonium chloride is investigated. The effects of the additives differ greatly as they are liable either to promote or inhibit the overall attack as well as the dezincking. This behaviour is governed by whether the added substance is cathodically or anodically adsorbed, i.e., forms a film, or whether it forms soluble complexes with the metal. As the type of brass also plays a part, and the de-zincking process may be governed by different mechanisms, it is difficult to find inhibitors which inhibit the overall corrosion attack as well as the de-zincking process. One possible solution might lie in the use of inhibitor blends.
    Notes: Der Einfluß von Gelatine, pulvis acacia, Dextrin, Agar, Ei-Albumin und Kartoffelstärke auf die Korrosion von α- und α/β-Messing in Äpfelsäure und Ammoniumchlorid wird untersucht. Die Wirkung der Zusätze ist sehr unterschiedlich, denn sie können sowohl den Gesamtangriff als auch die Entzinkung verstärken oder auch hemmen. Entscheidend hierfür ist, ob die zugesetzte Substanz kathodisch oder anodisch adsorbiert wird, also filmbildend ist, oder ob sie mit dem Metall lösliche Komplexe bildet. Da auch der Messingtyp eine Rolle spielt und die Entzinkung nach verschiedenen Mechanismen ablaufen kann, ergibt sich im Endeffekt die Schwierigkeit, Inhibitoren zue finden, welche gleichzeitig den Allgemeinangriff und die Entzinkung hemmen. Eine Möglichkeit könnte in der Verwendung von Inhibitorgemischen liegen.
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 295-299 
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    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 300-303 
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    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. IX 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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  • 157
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    Source: Wiley InterScience Backfile Collection 1832-2000
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    Description / Table of Contents: The kinetics of oxygen obsorption at vapour-coated Fe, Ni or Pt layers and alloysThrough vaporisation in a high vacuum, it is possible to obtain coatings of Fe, Ni, Pt or FeNiCr alloys with a geometric surface of 1250 sq. cm. and a thickness of approx. 500 Å. At such coating, the rate of O2 sorption has been measured manometrically at temperatures ranging from 25 to 450°C. The influence of simultaneously added H2O vapour is investigated. The rate of exchange between combined oxygen and O2 in gaseous phase is examined with the O18 mass spectrometer. It is not possible to represent the kinetics of O2 sorption over the whole investigated range by any of the known time/variation laws. Compared with Fe, Ni and Pt show a much slower sorption rate even at the beginning of the process. The corrosion behaviour of the coatings exposed to dry and most air, respectively, has been observed and microscopically examined over a period of months.
    Notes: Durch Verdampfen im, Hochvakuum werden Schichten von Fe, Ni, Pt und FeNiCr-Legierungen mit einer geometrischen Oberfläche von 1250 cm2 und einer Dicke von etwa 500 Å erzeugt. An diesen Schichten wird manometrisch die Geschwindigkeit der O2-Sorption bei Temperaturen von 25 bis 450°C gemessen. Der Enfluß von gleichzeitig zugegebenem H2O-Dampf wird untersucht. Die Geschwindigkeit des Austauschs von gebundenem Sauerstoff mit O2 der Gasphase wird mit O18 massenspektrometrisch verfolgt. Die Kinetik der O2-aufnahme läßt sich nicht im ganzen untersuchten Bereich durch eines der bekannten Zeitgesetze darstellen. Ni und Pt zeigen gegenüber Fe eine wesentlich langsamere Aufnahme auch schon am Beginn der sorption. Das Korrosionsverhalten der Schichten an trockener und feuchter Luft wurde über Monate verfolgt and mikroskopisch untersucht.
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 378-379 
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    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 404-409 
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    Keywords: Chemistry ; Polymer and Materials Science
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. X 
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961) 
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    Source: Wiley InterScience Backfile Collection 1832-2000
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 430-437 
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    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 458-467 
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    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. XV 
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 500-505 
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    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 509-515 
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    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 530-531 
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    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 532-532 
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    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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  • 172
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 550-560 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Material displayed at the “Achema 1961”The great extent of this year's “Achema” precludes an exhaustive description. The present report must therefore be confined to brief particulars designed to facilitate orientation. Pride of place is given to irons and steels which continue to be the most important materials in the chemical industry. The next section is devoted to non-ferrous metals and alloys. Partly due to the progress in nuclear technology and space research, this field, in particular, shows a good deal of progress and many innovations. In connection with the discussions of ceramics and glass the opportunity is taken to discuss “Cermets”, glass fibers, enamellings, etc. Rubber and plastics provide a highly topical and important sector of the “Achema”, and are taken into account on many of the stands. A further chapter dealing with natural and chemical fibers is followed by one headed “Other materials” which combines all the special features displayed at the “Achema” in regard to wood, paper, cardboard, graphite, chemicals, basic materials, etc. The brief survey is concluded by short references to surface protection, measuring methods and testing apparatus.
    Notes: Der sehr große Umfang der Achema schließt eine erschöpfende Darstellung aus. Auch der vorliegende Bericht beschränkt sich daher auf kurze Angaben, die nur den Zweck haben, den Überblick zu erleichtern. Es werden zunächst Eisen und Stähle behandelt, die nach wie vor die wichtigsten Baustoffe der chemischen Industrie bilden. Der nächste Hauptabschnitt ist den anderen Metallen und Legierungen gewidmet. Gerade auf diesem Gebiete gibt es, z. T. veranlaßt durch den Aufschwung von Kerntechnik und Weltraumforschung, viele Fortschritte und Neuerungen. Die Besprechung von Keramik und Glas als Werkstoff bietet Gelegenheit, auch auf Cermets, Glasfasern, Emaillierungen oder dgl. einzugeben. Mit Kautschuk und Kunststoffen ist ein sehr aktueller und wichtiger Sektor de Achema erreicht, der auf vielen Ausstellungsständen berücksichtigt worden ist. Auf ein weiteres Kapitel über natürlich und Chemie-Fasern folgt ein solches, in dem unter dem Oberbegriff „sonstige Werkstoffe“ alles das vereinigt ist, was hinsichtlich Holz, Papier, Pappe, Kohle, Graphit, Chemikalien, Grundstoffen usw. dem Besucher der Achema besonders in die Augen gefallen ist. Abschließend geht das Sammelreferat in Stichworten auf Oberflächenschutz, Meßmethoden und Prüfgeräte ein.
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  • 173
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: The corrosion behavior of cast iron, with special reference to processing technologyThe author discusses the special characteristics of cast materials, especially those of un-alloyed and low-alloyed cast iron. As regards the latter, the progress achieved during the last fifty years is briefly reviewed (e.g. “Meehanite” and cast iron with spherical graphite). The significance and the structure of the graphite coat are discussed. Examples are then given of the application of unalloyed and low-alloyed cast iron in processing technology, with special reference to the handling of acid and alkaline reaction mixtures. Tests with oleum acting on ten different types of cast iron at room temperature did not show the kind of destruction described in earlier publications.
    Notes: Es wird auf die besondere Eigenart der Gußwerkstoffe, insbesondere des unlegierten und niedrig legierten Gußeisens, eingegangen. Bei diesem werden die Fortschritte der letzten 50 Jahre kurz gestreift (z.B. „Meehanite“ und Gußeisen mit Kugelgraphit). Auf die Bedeutung und das Gefüge der Graphitierungsschicht wird eingegangen. Dann werden Anwendungsbeispiele von unlegierten und niedriglegierten Gußeisen in der Verfahrenstechnik angeführt, wobei die Handhabung saurer und alkalischer Reaktionsgemische besprochen wird. Bei der Einwirkung von Oleum auf 10 Gußeisensorten von Raumtemperatur konnten Zerstörungen, wie sie in früheren Arbeiten besprochen worden sind, nicht gefunden werden.
    Additional Material: 9 Ill.
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  • 174
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 592-592 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 175
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 593-593 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 176
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 18-19 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 177
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 31-31 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 178
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 59-67 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 179
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 180
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 72-72 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 181
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 81-84 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: The passivity of silver/copper alloys in sodium cyanide solutions I. The silver/copper alloy 80/20The passivity exhibited by the silver/copper alloy 80/20 in sodium cyanide solutions of various concentrations has been investigated by studying current density/time and current density/potential relations at 25° C. Correlation of results and determination of the characteristic constant B, n and m has shown that the passivation follows the Müller-Machu theory. The individual stages of the passivation could be attributed to the formation of superficial layers of Ag2O, AgOH, AgCN and CuCN having different solubilities.
    Notes: Die Passivitätserscheinungen bei der Ag-Cu-Legierung 80/20 in verschieden konzentrierten Natriumcyanidlösungen wurden anhand von Stromdichte-Zeit- sowie Stromdichte-Potentialmessungen bei 25°C untersucht. Die Auswertung der Versuche und Ermittlung der charakteristischen Konstanten B und n sowie m ergab, daß die Passivierungsvorgänge vollkommen der Müller-Machu-Theorie entsprechen.Die einzelnen Passivierungsstufen konnten durch Auftreten verschieden löslicher Deckschichten aus Ag2O, AgOH, AgCN und CuCN erklärt werden.
    Additional Material: 7 Ill.
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  • 182
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 115-121 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 183
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 126-126 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 184
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    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 185
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 138-140 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 186
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 140-140 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 187
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 148-150 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Copper corrosion products on electric traction wiresOn the copper catenaries of electric railway, the three types of crystals of green copper patina are encountered, corresponding to basic copper chloride, nitrate and sulphate. Chloride is encountered in coastal areas, nitrate in mountain regions, and sulphate in industrial districts.
    Notes: Auf dem Kupfer-Fahrdraht elektrischer Eisenbahnen bilden sich die drei Kristallarten von grüner Kupferpatina. Sie entsprechen basischem Kupferchlorid, -nitrat und -sulfat. Das Chlorid findet sich am Meeresstrand, das Nitrat in der Gebirgsgegend und das Sulfat in Fabrikgegenden.
    Additional Material: 3 Tab.
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  • 188
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 173-174 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 189
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 179-180 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 190
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 197-197 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 191
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 192
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 199-201 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Additional Material: 5 Ill.
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  • 193
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 204-204 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 194
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. V 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 195
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Pit corrosion and Surface film formatin on leadOn the basis of facts concerning lead corrosion, already known from literature, tests were carried out in order to clarify the electro-chemical phenomena during the formation of surface films on lead. Galvanostatic as well as potentiostatic measurements were carried out in different solutions capable of forming surface films, and the results were compared with each other. The agreement was found to be good. By comparing the maximum and minimum values of the potentiostatic current density with the formation potentials, calculated from thermodynamic data, of different insoluble lead compounds, it is possible to draw conclusions concerning the nature of the surface film formations occuring at given potentials, and their reduction.Investigations were also carried out on the effect, on bare and film covered lead of chloride ion additions to the electrolyte with cathodic and anodic polarisation. It was found that the alignment of the current density/potential characteristic of bare lead differs from that of the lead without chloride addition, and that most of the surface films are affected.
    Notes: Auf der Grundlage der aus der Literatur über Bleikorrosion bereits bekannten Tatsachen wurden Versuche zur Klärung der elektrochemischen Vorgänge bei der Deckschichtbildung an Blei durchgeführt. Es wurden sowohl galvanostatische als auch potentiostatische Messungen in verschiedenen, deckschichtbildenden Lösungen durchgeführt, deren Ergebnisse miteinander verglichen werden. Dabie zeigt sich gute Übereinstimmung. Durch Vergleich der potentiostatischen Stromdichte-maxima und -Minima mit den aus thermodynamischen Werten errechneten Bildungspotentialen verschiedener unlöslicher Bleiverbindungen kann auf die Art der bei bestimmten Potentialen erfolgenden Deckschichtbildungen und den Abbau derselben geschlossen werden.Die Beeinflussung von blankem und mit Schichten bedecktem Blei durch Chloridionenzusatz zum Elektrolyten bei kathodischer und anodischer Polarisation wurde gleichfalls untersucht. Dabei zeigte sich, daß die Stromdichte-Potential-kurve von blankem Blei anders verläuft als die ohne Chloridzusatz und auch die meisten Deckschichten beeinflußt werden.
    Additional Material: 17 Ill.
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  • 196
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 252-255 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 197
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 266-266 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 198
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 271-272 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 199
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961) 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 322-325 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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