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  • 2020-2023
  • 1985-1989
  • 1955-1959  (594)
  • 1955  (594)
  • Polymer and Materials Science  (594)
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  • 2020-2023
  • 1985-1989
  • 1955-1959  (594)
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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955) 
    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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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 1-1 
    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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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 2-6 
    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 Inhibitors in Petroleum Refinery ServiceChemical Inhibitors play a role of increasing importance in the prevention of corrosion in refinery service. After a brief discussion of the theory underlying the effectiveness of corrosion inhibitors, the author reports considerations which must govern the choice of a particular additive for individual application. Progress in the field of anodic, cathodic, and organic inhibitors is reported. Among the former, chromates and nitrites are widely used, especially with waters of low oxygen content. The use of insufficient inhibitors is more harmful than no inhibitor at all, and minimum proper concentration must be carefully determined. Drawbacks of anodic inhibitors exist in hard waters and in the treatment of potable water. In such cases, the purpose is often better served by cathodic inhibitors (e. g. glassy phosphates and calcium bicarbonate). Organic inhibitors are relatively new and open up a vast and promising new field. Special interest attaches to the recent development of sodium benzoate and of organic amines in this service.
    Notes: Chemische Hemmstoffe (Inhibitoren) haben auf dem Gebiete der Korrosionsverhütung in der Erdölraffinerie steigende Bedeutung erlangt. Nach einer kurzen Erörterung der Theorie, die der Wirkung der Hemmstoffe zu Grunde liegt, berichtet der Verfasser über die Gesichtspunkte, die bei der Wahl eines Hemmstoffes im Einzelfalle zu berücksichtigen sind. Es werden die Fortschritte aufgezeigt, die auf dem Gebiete der anodischen kathodischen und organischen Hemmstoffe erzielt wurden. Als anodische Hemmstoffe kommen vorwiegend Chromate und Nitrite zur Anwendung, insbesondere bei Wasser von geringem Sauerstoffgehalt. Dabei ist zu beachten, daß die Anwendung von ungenügenden Mengen Hemmstoff schädlicher ist als überhaupt kein Hemmstoff, weshalb die anzuwendenden Mindestkonzentrationen sorgfältig zu ermitteln sind. Auch besitzen die anodischen Hemmstoffe Nachteile bei Behandlung von hartem Wasser und von Trinkwasser. In solchen Fällen sind kathodische Hemmstoffe, wie glasige Phosphate und Calciumbicarbonat, oft vorzuziehen. Organische Hemmstoffe sind verhältnismäßig neu und eröffnen ein vielseitiges und aussichtsreiches Anwendungsgebiet. Besonderes Interesse verdienen in dieser Hinsicht Natriumbenzoat und organische Amine.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 9-14 
    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 Prevention of Corrosion of Hardware during Storage and ShipmentThe type of corrosion referred to in this article results from failure to remove a11 traces of residual water, pickle, soldering flux, fingerprints, etc., which arise during manufacture. However, in most cases the deciding factor is the quantity of sea water vapour, sulphur oxides or humidity present in the ambient air, as well as the type of material used for packaging. To prevent such corrosion from occuring, packaging materials and containers containing and corrosive agents are used. In most cases, however, protective coatings of mineral oils and greases, usually with an addition of some corrosion inhibitor, are applied. Furthermore, removeable coatings (having a cellulose acetate or butyrate base) are often applied. The articles must be absolutely clean before such coatings can be applied. Finally, the highlights of the pertinent U. S. Government Specifications, which were brought to the lecturer's notice during a recent visit to the U.S.A., are given.
    Notes: Die Ursachen der behandelten Korrosionsart liegen mitunter in Fabrikationsmängeln wie Spülwasser-. Beiz- und Lötmittelrückstanden oder Fingerabdrücken. Meistens sind jedoch der Gehalt der umgebenden Luft an Feuchtigkeit, Schwefeloxyden und Meerwassersprühnebeln oder das Packmaterial entscheidend. Zur Bekämpfung der Korrosion verwendet man Packungen oder Transportbehälter, in denen korrosionsverhütende Verhältnisse bestehen. Meist bringt man jedoch Schutzüberzüge aus Mineralölen oder fetten Ölen auf, die Zusatzmittel, im besonderen Korrosionsinhibitoren, enthalten. Ferner werden abziehbare Überzüge (z. B. auf Celluloseacetat oder -butyralgrundlage) verwendet. Für die Aufbringung der Überzüge müssen die Waren einwandfrei gereinigt sein. Die amerikanischen Spezifikationen für die genannten Schutzverfahren, die der Verfasser bei einer Studienreise näher kennen gelernt hat, werden nach ihren wesentlichen Gesichtspunkten geschildert.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 15-26 
    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: Solid products of Corrosion as Corrosion-Governing-ElementsCorrosion of metal in aqueous solutions is the result of complicated reactions governed by the electro-chemical properties of the metal and of the electrolytic solution and by the chemical and thermodynamic properties as well as the existing activity and morphological formation of the solid products of corrosion. Exact knowledge of the chemical and physico-chemical properties of the possible solid products of corrosion (oxides, hydroxides, hydroxide-salts) is necessary to understand corrosion in solutions as well as in acid vapours.It is demonstrated by experiments with zinc in sodium chloride solutions how to determine the dispersion and the formation of the products of corrosion by means of microscopes and electronmicroscopes and how to identify these by means of X-ray-photographs and of electron-diffractive spectra. The detailed results show in which way the solid products govern the whole corrosionprocess according to their constitution, formation and dispersal.
    Notes: Der korrosive Angriff eines Metalls in wäßriger Lösung ist das Ergebnis eines komplizierten Zusammenspiels von Faktoren, die durch die elektrochemischen Eigenschaften des Metalls und der Elektrolytlösung bestimmt sind und Faktoren, die gegeben sind durch die chemischen und thermodynamischen Eigenschaften der festen Korrosionsprodukte, sowie deren Reaktionsfähigkeit und morphologische Ausbildung. Voraussetzung für das Verständnis der Korrosionsvorgänge in Lösungen wie in sauren Dämpfen sind genaue Kenntnisse der chemischen und physikalisch-chemischen Eigenschaften der möglichen festen Korrosionsprodukte, Oxyde, Hydroxyde und Hydroxysalze.An einigen Beispielen von Korrosionsversuchen mit Zink in Natriumchloridlösung wird gezeigt, wie mit Hilfe von Mikroskop und Elektronenmikroskop die Verteilung und Ausbildungsform der Korrorionsprodukte festgestellt werden kann und wie diese mit Hilfe von Röntgen- und Elektronenbeugungsaufnahmen identifiziert werden können. Die detaillierten Kenntnisse der Natur der festen Korrosionsprodukte, deren Ausbildungsform und Verteilung lassen erkennen, in welcher Weise diese den ganzen Korrosionsvorgang lenken.
    Additional Material: 19 Ill.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 33-34 
    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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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 44-44 
    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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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 45-45 
    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
    Type of Medium: Electronic Resource
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  • 9
    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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  • 10
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 52-52 
    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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  • 11
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 52-52 
    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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  • 12
    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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  • 13
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 53-55 
    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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  • 14
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 55-56 
    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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  • 15
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), 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 Influence of the Rate of Flowing on the Precipitation of Hardnes and the so Caused Corrosion in Hot-Water-Supply-DevicesPrecipitation of the hardness of waters resulting from metall-dissolution is subject to the alkalinity of the wall. Its rate depends on the composition of the water and on the available concentration of a depolariser; in this way the rate of flowing and of diffusion. It is shown how to eliminate resulting disadvantage by suitable constructions which do not cause lower efficiency of the devices.
    Notes: Die Härteausscheidung aus Wässern als Folge einer Metallauflösung ist abhängig von der Wandalkalität. Die Höhe der Wandalkalität richtet sich nach der Wasserzusammensetzung und der Menge des in der Zeiteinheit zur Verfügung stehenden Depolarisationsmittels, also nach der Diffusionsgeschwindigkeit. Es wird gezeigt, wie durch bauliche Maß nahmen die nachteiligen Faktoren eliminiert werden können, ohne daß die Leistung der Geräte sinkt.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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  • 16
    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: There is a number of particulars basing on laboratory-measurements as well as on practical experiences. They allow a rough choice of material for equipment dealing with sulfuric acid.Formerly all those laboratory-experiments were carried out in static systems of sulfuric acid of different concentrations and temperatures.The data of corrosion obtained in this way do not comply with the requirements of a critical choice of material as in practice the velocity of corrosion is influenced essentially by further numerous varieties.Therefore a laboratory-method to measure corrosion under conditions of different velocities of flowing was developed. Further effects on corrosion, e. g. accumulation of the products of corrosion in the corrosive agent, were investigated too. The measurements on carbon steel and Al-Ni-bronze are discussed in this paper.
    Notes: Man hat eine Anzahl von Daten zur Verfügung, die sowohl auf Laboratoriumsmessungen als auch auf praktischer Erfahrung beruhen und die eine grobe Materialauswahl für eine mit Schwefelsäure arbeitende Apparatur ermöglichen.Was die Laboratoriumsmessungen anbetrifft, so wurden diese früher meistens mit Schwefelsäure verschiedener Konzentration und Temperatur im statischen System durchgeführt. Bekanntlich aber genügen die so ermittelten Korrosionsdaten zu einer kritischen Materialauswahl nicht, da in Wirklichkeit zahlreiche Variablen die Korrosionsgeschwindigkeit wesentlich beeinflussen.In diesem Zusammenhang wurde eine Laboratoriumsmethode entwickelt, die es ermöglicht, Korrosionsmessungen unter verschiedenen Strömungsbedingungen durchzuführen. Auch der Einfluß von anderen Faktoren auf die Korrosion wurde untersucht, z. B. Anhäufen von Korrosionsprodukten in der angreifenden Flüssigkeit.Die Messungen an Kohlenstoffstahl und Aluminium - Nickel - Bronze werden besprochen.
    Additional Material: 16 Ill.
    Type of Medium: Electronic Resource
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  • 17
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 72-80 
    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 To-Day State of Phosphatizing on Iron and Non-Ferrous-MetalsPhosphatizing is a electrochemical, cathodically controlled process. The author developed mathematical lawfulness for the formation and decomposition of phosphate-covers which was proved by experiments. The porosity of the covers was determined to be 0.3% of the total surface. Because of their high porosity phosphate-covers are used only in combination of oils, lacquers or varnishes. The methods of phosphatizing are discribed in detail. According to the composition of the phosphatizing bath or the intensity of treatment, thinner or thicker covers are obtained. Thick covers of more than 100 mg/100 cm2 (on nails, screws, etc.) are oiled while thin covers of 25-75 mg/100 cm2 are bottoms for painting.Phosphate-covers do not only serve protection against corrosion but also the decrease of friction of sliding surfaces of machines. These covers of manganese and iron phosphate are applied in combination with lubricants.Phosphatizing is of big importance to the cold-working of iron and steel e. g. to deep-drawing. This method invented by Fr. Singer has been applied in Germany. Later than 1947 it was introduced in Great-Britain and the USA.
    Notes: Der Phosphatierungsprozeß ist ein elektrochemischer, kathodisch gesteuerter Vorgang. Für die Kinetik der Bildung und Zerstörung der Phosphatschichten wurden von w. Machu mathematische Gesetzmäßigkeiten abgeleitet und experimentell bewiesen. Die Porosität der Phosphatschichten wurde zu 0.3% der Gesamtfläche ermittelt. Wegen dieser verhältnismäßig hohen Porosität werden die Phosphatüberzüge nur in Verbindung mit Ölen, Lacken oder Anstrichen verwendet. Die Verfahren der Phosphatierung werden im einzelnen beschrieben.Je nach Zusammensetzung des Phosphatierungsbades oder der Behandlungsintensität erhält man dickere oder dünnere Überzüge. Dicke Schichten von über 100 mg/dm2 für Nägel, Schrauben u. dgl. werden geölt, während die dünnen Schichten von 25-75 mg/dm2 die Grundlage von Anstrichen bilden.Neben dem Korrosionsschutz dienen die Phosphatüberzüge auch zur Verminderung der Reibung von aufeinandergleitenden Maschinenteilen. Diese Schichten aus Mangan- und Eisenphosphaten werden in Verbindung mit Schmiermitteln angewendet.Neben Hilfsmittel bei der Kaltbearbeitung von Eisen und Stahl, z.B. Beim Tiefziehen, ist die Phosphatierung von besonderer Bedeutung. Dieses von Fr. Singer 1935 erfundene und in Deutschland angewendete Verfahren wurde erst nach 1947 in USA und in England eingeführt.
    Additional Material: 9 Ill.
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  • 18
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 94-94 
    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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  • 19
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 97-98 
    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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  • 20
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 100-101 
    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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  • 21
    Electronic Resource
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 99-99 
    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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  • 22
    Electronic Resource
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 149-151 
    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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  • 23
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 136-141 
    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 Mechanism of the Decomposition of Hydrogen-Peroxide on Metallic LeadThe potentials of the galvanic cells Pb/Pt and Pb/Ag in electrolytes containing 0,01-0,4 mols of H2O2 were plotted against time. The obtained results allow to draw conclusions on the mechanism of the catalytic decomposition of H2O2 on lead.The decomposition of H2O2 on metallic lead in 0,01-0,25 molar solutions of H2O2 at 20, 40 and 60°C temperature is characterized by a period of induction. The effect does not occur at higher concentrations of H2O2. If the specimen is preliminarily dipped into a 0,1 molar solution of H2O2 at 20°C temperature for 30 min. no period of induction occures. The decomposition under these conditions is a reaction of zero order.By the effect of H2O2 on freshly precipitated Pb(OH)2 a number of higher leadoxides are produced. Their general formula is PbOn where n is a number between 2 und 3.Experiments on the influence of the state of the surface on the corrosion of lead are discussed.
    Notes: Der Wasserstoffsuperoxyd-Zerfall auf metallischen Blei wurde elektrochemisch und kinetisch verfolgt, wobei die ständige Änderung der Bleioberfläche durch einige Kontaktsubstanzen, die der 0,01 bis 0,4 mol-H2O2-Lösung zugesetzt wurden, durch Potential-Zeit-Messungen, mittels einer Platin- und Silber-Hilfselektrode verfolgt wurde.Der Wasserstoffsuperoxyd-Zerfall auf metallischem Blei bei 20, 40 und 60°C in 0,01 bis 0,25 mol H2O2-Lösung ist durch eine Induktionsperiode gekennzeichnet, die jedoch bie höheren Konzentrationen vollständig verschwindet. Wird die Bleiprobe vor dem Eintauchen in die H2O2-Versuchslösung in einer 0,1 mol-H2O2-Lösung etwa 30 min bei 20°C behandelt, so verschwindet die Induktionsperiode. Die Zerfallreaktion läuft dann als Reaktion nullter Ordnung ab. Durch Einwirkung von H2O2 auf frisch vorbereitetes Pb(OH)2 entsteht eine Reihe höherer Bleioxyde der allgemeinen Formel PbOn, wo n Werte zwischen 2-3 darstellen kann.
    Additional Material: 6 Ill.
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  • 24
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 152-153 
    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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  • 25
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), 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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  • 26
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 157-157 
    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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  • 27
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 158-158 
    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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  • 28
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 159-161 
    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 6 (1955), S. 162-162 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 163-163 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 165-166 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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  • 32
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    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 205-207 
    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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  • 33
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    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 208-209 
    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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  • 34
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 181-189 
    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 Developement of the Cathodic Protection Against Corrosion of Metallic Constructions under Water and in soilsThe first constructions in France beings cathodically protected against corrosion were burried steel-pipe-lines. To-day nearly all the longer and also many short ones in France as well as in North Africa are protected by this method as they are very sensitive to corrosion. Furthermore French engineers have investigated the Protection against corrosion of pipe-line-systems abroad e.g. gas-pipes in the valley of the river po.This method is also used for steel pipe-lines in water like those crossing the river of Seine or those in harbours for the discharging of tankers. In Northern France cathodic protection against corrosion is even allied to important pipe-lines of steel-concrete-make which is of special importance owing to the extra-ordinary aggressiveness of the soils in these districts.Telephone- and power-cables were protected either alone or in connection with steel-pipes. At present cathodic protection is also employed to further constructions like metallic pile-foundations, walls of quays and wharves, sluices in harbours and even ships and floating docks.The different methods to establish the cathodic potential of protection are discusses. Stray-Current-Corrosion of railway-constructions can be prevented by the stray-current itself it the construction to be protected is connected suitably with the tracks. The various types of anodes corresponding to be concerned kinds of soil are discusses. Final considerations deal with the economics of the cathodic protection against corrosion.
    Notes: Die im Erdreich liegenden Rohrleitungen aus Stahl waren die ersten Anlagen, die in Frankreich kathodisch geschützt wurden. Heute werden fast alle längeren und auch sehr viele kurze Stahlrohrleitungen in Frankreich und in Nordafrika auf diese Weise geschützt, da die Leitungen besonders anfällig für Korrosion sind. Außerdem haben französische Ingenieure den Schutz von Rohrleitungsnetzen im Ausland untersucht, z. B. von Gasleitungen in der Po-Ebene.Man wendet diese Schutzart auch auf Stahlrohrleitungen im Wasser an, z. B. für die durch die Seine geführten Leitungen oder für solche Rohrleitungen, wie sie in Häfen für das Entleeren von Tankschiffen diene. Der kathodische Schutz wird in Nordfrankreich auch für bedeutende Rohrleitungen in Stahlbeton angewendet. Dies ist wegen der außer-gewöhnlichen Aggressivität der Böden in diesem Gebiet besonders wichtig.Auch Telephonkabel und elektrische Leitungen für Energieübertragungen wurden entweder für sich oder in Verbindung mit Stahlrohrleitungen geschützt. Der kathodische Schutz wird augenblicklich auch auf andere Anlagen ausgedehnt, beispielsweise auf Fundamente aus Metallpfählen, Kai-Verkleidungen von Häfen und Werften, Schleusen in Häfen und sogar auf Schiffen oder schwimmenden Docks.Es werden die verschiedenen Verfahren zur Erzeugung des kathodischen Schutzpotentials beschrieben. Bei Gefährdung von Bahnlinien durch vagabundierende Ströme kann der Streustrom selbst zum Schutz verwendet werden, wenn man die zu schützende Anlage in geeigneter Weise mit der Schiene verbindet. Die verschiedenen Arten von Anoden, je nach der Bodenbeschaffenheit, werden beschrieben.Abschließende Betrachtungen gelten der Wirtschaftlichen Seite des kathodischen Schutzes.
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    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 271-272 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 273-274 
    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 6 (1955), S. 275-275 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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  • 38
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    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 297-300 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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  • 39
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. I 
    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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  • 40
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955) 
    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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  • 41
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    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 325-328 
    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: Short-time-tests in a new test-chamber for corrosionAt first the author discusses the problems of short time tests and refers to the faults of sprayers operated by spray nozzles. Then he describes the „Aerosol apparatus“ which allows to produce a fine homogenous fog. This device was the basis for the development of a new test chamber for corrosion. Finally the advantages of this device are emphasized and some applied experiments and their results described.
    Notes: Der Verfasser streift zuerst die Probleme, die sich bei Kurzzeitprüfungen stellen und weist auf die Fehler hin, die bei Sprühgeräten auftreten, welche mit Düsen arbeiten. Dann wird ein Aerosolapparat beschrieben, der gestattet, einen feinen und gleichmäßigen Nebel zu erzeugen. Dieses Gerät diente als Grundlage für die Entwicklung einer neuen Korrosionsprüfkammer. Anschließend werden die Vorteile dieser Einrichtung hervorgehoben. Schließlich werden noch praktische Versuche und deren Resultate beschrieben.
    Additional Material: 8 Ill.
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  • 42
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    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 329-331 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Description / Table of Contents: On the resistance to oxidation and Corrosion of ZirconiumGaining an increasing application as oxidizing agent, alloy constituent and material for pipes Zirconium is distinguished like titanium by its high resistance to oxidation and corrosion. On basis of the latest American literature this paper presents a survey of its most important physical properties especially of the influence of deformation and annealing in the manufacturing processes of semifinished products as well as of its thermal and chemical resistance to about 45 different corrosive agents.
    Notes: Zirkonium, das als Oxydationsmittel, Legierungselement und Röhrenbaustoff zunehmende Verwendung findet, zeichnet sich, ähnlich wie Titan, durch hohe Oxydations- und Korrosionsbeständigkeit aus. Die Arbeit gibt an Hand des neueren amerikanischen Schrifttums einen zeitgemäßen Überblick über die wichtigsten physikalischen Eigenschaften von Zirkonium, insbesondere über den Einfluß von Verformung und Glühbehandlung im Verlaufe der Halbzeugfertigung sowie über die thermische und chemische Beständigkeit des Zirkoniums gegen etwa 45 verschiedene angreifende Mittel.
    Additional Material: 3 Tab.
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    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 343-346 
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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 6 (1955), S. 352-353 
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    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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  • 46
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    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 362-362 
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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 6 (1955), S. 362-366 
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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 6 (1955), S. 362-362 
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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 6 (1955), S. 368-368 
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    Source: Wiley InterScience Backfile Collection 1832-2000
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    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 366-368 
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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 6 (1955), S. I 
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    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955) 
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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 6 (1955), S. III 
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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 6 (1955), S. 496-501 
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    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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  • 57
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    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 486-495 
    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 Use of Electric Extensometer Strips in the Testing of MaterialsAs the electric measurement of extension by means of extensometer strips, being a modern as well as convenient method, has proved and become well known to be successfully applicable to all branches of engineering for the investigation of special conditions of wear it was attempted to show the use of this method in solving special problems of material research. Numerous examples prove convincingly that the above described method can be applied profitably even to special problems of the static material testing. The realm of use of the well known little Hartmann und Braun (Frankfurt) extensometer bridge “Pontavi” has been enlarged by a lately developed supplementary apparatus for selective connection of several extensometer strips.
    Notes: Nachdem hinreichend bekannt und unter Beweis gestellt ist daß die „elektrische Dehnungsmessung“ mit Dehnungsmeßstreifen, die ein ebenso modernes wie elegantes Meßverfahren darstellt, auf allen Gebieten der Technik erfolgreich zur Klärung besonderer Beanspruchungsverhältnisse eingesetzt werden kann, wurde versucht, die Nutzanwendung diese Verfahrens bei der Lösung werkstoffkundlicher Sonderaufgaben aufzuzeigen. An zahlreichen Anwendungsbeispielen wird überzeugend gezeigt, daß das eingangs beschriebene Verfahren auch auf den Gebieten der statischen Werkstoffprüfung zur Lösung spezieller Aufgaben nutzbringend Anwendung finden kann. Der Anwendungsbereich der bekannten kleinen Dehnungsmeßbrücke Pontavi der Fa. Hartmann & Braun, Frankfurt wurde durch ein neu entwickeltes Zusatzgerät zum wahlweisen Anschluß mehrerer Dehnungsmeßstreifen in glücklicher Weise erweitert.
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    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 502-504 
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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 6 (1955), S. 505-506 
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    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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  • 60
    ISSN: 0947-5117
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    Description / Table of Contents: The Corrosion Chemical Behavior of Non-Ferrous Metal upon Alkali Fluoride- and Alkali Hydro Fluorides.1. The Corrosion-Chemical Behavior of Non-Ferrous Metals upon Alkali Fluoride- and Alkali Hydro Fluoride SolutionAs alkali fluoride preservatives protect wooden constructions against fungus growth and insect attack the corrosion chemical behavior of the most important non ferrous metals upon those salts is of as big interest as that of iron which has largely been investigated because of the extensive use of iron in and on wood. Considering that e.g. non ferrous sheet metals for roofing, non ferrous semifinished products armatures and fittings are touching in way impregnated wood resp. that non ferrous metals are applied to iron as protective coating the corrosion chemical behavior of copper, brass, cadmium, tin, zinc, lead and aluminum as well as of aluminum magnesium alloys upon various alkali fluoride and alkali hydro fluoride solutions and upon the solution of an approved commercial product were systematically investigated under various conditions of concentration and temperature according to recommended standards. The obtained results are represented in chartform and discussed amply. The investigated magnesium alloy proved to be to tally resistant under all experimenting conditions while the other metals generally showed a very much differing behavior in different electrolytes.
    Notes: Da Imprägniermittel auf Basis der Alkalifluoride Holzkonstruktionen wirkungsvoll vor Pilzbefall und Insektenfraß schützen, interessiert das korrosions chemische Verhalten der wichtigsten NE-Metalle gegenüber derartigen Salzen etwa in dem gleichen Maße wie das des Eisens, das infolge seiner weitgehenden technischen Verwendung in Holz und an Holz bereits weitgehend geklärt ist. Im Hinblick darauf, daß beispielsweise NE-Metallblech für Dacheindeckungen, NE-Halbzeuge, -Armaturen und -Verbindungselemente mit derart imprägnierten Holzteilen in Berührung kommen bzw. als Schutzüberzug für E-Metalle Verwendung finden, wurde das korrosionschemische Verhalten von Kupfer, Messing, Cadmium, Zinn, Zink, Blei, aluminium sowie das von Aluminium- und Magnesium-Legierungen gegenüber verschiedenen Alkalimono- und Alkalihydrogenfluoridlösungen und gegen Lösungen eines bewährten Handelsproduktes systematisch unter verschiedenen Versuchsbedingungen (Konzentration und Temperatur) in Anlehung an empfohlene Normen untersucht. Die erhaltenen Versuchwerte wurden tabellarisch und schematisch zusammengefaßt und ausführlich diskutiert. Während sich die verschiedenen Metalle in den verschiedenen Elektrolyten im allgemeinen stark unterschiedlich verhielten, ist die untersuchte Mg-Legierung in sämtlichen Versuchslösungen unter allen Versuchsbedingungen vollständig beständig.
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    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 508-509 
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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 6 (1955), S. 507-507 
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    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 511-511 
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    Keywords: Chemistry ; Polymer and Materials Science
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    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 510-511 
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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 6 (1955), S. 512-514 
    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 6 (1955), S. 515-516 
    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 6 (1955), S. 517-520 
    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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  • 68
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 544-545 
    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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  • 69
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 535-538 
    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 Effect of Light on the Solubility of Copper in electrolytesA survey of the relationship between the photo- and electrochemical reactions in the corrosion of copper is given. On the surface of copper electrodes in a HCl-HNO3-solution photo sensitive covers are formed. If you expose a copper electrode of a certain size, immersed into a 0,1 n KCl solution, to light and keep an other electrode of the same size and in the same solution in darkness a current of about 0,2 mA flows from one electrode to the other. The differences of the solubility of exposed and not exposed copper electodes in 0,1-0,001 n KCl solutions are represented in a diagram. The solubility of the exposed copper electrode is severely inhibited if 1 ccm of a 0,001 m FeSO4 solution is added to the used 0,001 n KCl solution. The sensitivity of ironsalts to visible light causes the formation of a more stable system obeying the equation Fe″ + Cu″ + hv Fe‴ + Cu′.
    Notes: Überblick über den Zusammenhang zwischen photochemischen und elektrochemischen Reaktionen bei der Korrosion des Kupfers. In einer HCl-HNO3-Lösung bilden sich auf der Oberfläche von Kupferelektroden lichtempfindliche Überzüge aus. Setzt man eine Cu-Elektrode von bestimmter Oberfläche in 0,1 n-KCl der Einwirkung einer Lichtquelle aus, während man eine gleichgroße Cu-Elektrode in 0,1 n-KCl in Dunkelheit hält, so fließt zwischen beiden Elektroden ein strom von etwa 0,2 mA. Die zwischen der belichteten und der unbelichteten Cu-Elektrode in 0,1 bid 0,001 n-KCl-Lösung auftretenden Löslichkeitsunterschiede wurden graphisch dargestellt. Nach Zugabe von 1 ml 0,001 m-FeSO4 zu der 0,01 n-KCl ist die Löslichkeit der belichteten Cu-Elektrode verhältnismäßig stark gehemmt, die Lichtempfindlichkeit der Eisensalze gegen sichtbares Licht bewirkt die Bildung eines stabileren Systems, das sich durch die Gleichung Fe″ + Cu″ + hv ⇌ Fe‴ + Cu′ wiedergeben läßt.
    Additional Material: 5 Ill.
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    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 548-549 
    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 6 (1955), S. 546-547 
    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 6 (1955), S. 549-550 
    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 6 (1955), S. 551-553 
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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 6 (1955), S. 554-554 
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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 6 (1955), S. 554-554 
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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 6 (1955), S. 554-554 
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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 6 (1955), S. 555-555 
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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 6 (1955), S. 555-566 
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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 6 (1955), S. 566-568 
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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 6 (1955), S. 568-568 
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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 6 (1955), S. 555-555 
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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 6 (1955), S. I 
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    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955) 
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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 6 (1955), S. 569-571 
    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: A contribution Relating to the Execution of Corrosion TestsThere is a description of an apparatus for the automatic control of the temporal progress of corrosion of a specimen in a constant amount of electrolyte and in absence of a gas phase. A polarographic control is used. The specimen rotated magnetically from outside the cell will corrode also under a controlled polarization. The described apparatus is especially adapted for the investigation of the consumption of oxygen of the electrolyte.
    Notes: Es wird ein Gerät beschrieben, das zur automatischen Beobachtung des zeitlichen Verlaufs der in einem konstanten Flüssigkeitsvolumen bei Abwesenheit einer Gasphase stattfindenden Korrosion bestimmt ist. Das angewandte Kriterium ist das polarographische. Die Versuchsprobe, die magnetisch von außen in Drehung versetzt wird, kann auch unter einer kontrollierten Polarisation der Korrosion ausgesetzt werden. Die Versuchsvorrichtung ist für die Erforschung des Verbrauchs an in der Lösung vorhandenem Sauerstoffs besonders geeignet.
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    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 577-580 
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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
    Description / Table of Contents: The Progress in ElectroplatingThe article contains a concise survey of the postwar progress in electroplating. Bright and levelling deposits, automatic plants, degreasing, nickel, zinc, chrome, cadmium, passivation, brass, tin, silver, indium, nickel substitutes, anodic brightening and standardization are discussed among others.
    Notes: Die Arbeit gibt in gedrängter Form einen Überblick über die wichtigsten seit Kriegsende in der Galvanotechnik erzielten Fortschritte. Behandelt werden u. a.: hochglänzend abgeschiedene und einebnende Überzüge, automatische Anlagen, Entfettung, Nickel, Chrom, Zink, Cadmium, Passivierung, Messing, Zinn, Silber, Indium, Ersatz für Nickel, anodisches Glänzen, Normung.
    Additional Material: 4 Ill.
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    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 575-577 
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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
    Description / Table of Contents: The Behavior of Plastics upon Mineral OilsThe behavior of plastics upon mineral oils is of special importance as they are gaining increasing application as building and constructing materials. The behavior depends essentially on the nature of the macromolecular plastic and the filling material as well as on the nature of the mineral oil, the duration of action and temperature. The resistance of many thermoplastic materials and rubber goods to oil is decreased considerably at higher contents of aromatic substances of the mineral oil.The behavior of the most important plastics upon oils of different composition is reported. Special importance has been given to the standardization of the experimental conditions.
    Notes: Angesichts der steigenden Verwendung von Kunststoffen als Bau- und Konstruktionsmaterial kommt ihrem Verhalten gegen Mineralöle besondere Bedeutung zu. Dieses Verhalten wird sowohl durch die Art des hochmolekularen Kunststoffes und verschiedene Füll- und Zusatzstoffe als auch durch die Natur des Mineralöles, die Einwirkungsdauer und Beanspruchungstemperatur wesentlich beeinflußt. So ist insbesondere festzustellen, daß höhere Aromatengehalte im Mineralöl die Ölbeständigkeit vieler thermoplastischer Kunststoffe und Gummiwerkstoffe beträchtlich herabsetzen.Es wird über das Verhalten der wichtigsten Kunststoffe gegenüber Ölen verschiedenere Zusammensetzung berichtet, wobei auf die genaue Festlegung der Versuchsbedingungen besonderer Wert gelegt wird.
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    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 582-584 
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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 6 (1955), S. 585-588 
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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 6 (1955), S. 571-575 
    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: Zinc Dust CompoundsZinc dust compounds are consisting chiefly of zinc dust and small amounts of an adhesive and a solvent. The dry film should contain of 94 per cent of zinc dust at least. Under these conditions the particles are in metallic contact with each other as well as with the metal surface.The anti-corrosive properties of zinc dust compounds are due to cathodic protection as well as to sealing off the atmosphere. The cover becomes more compact by the formation of insoluble zinc salts which increase the anti-corrosive properties. Damaged spots of zinc dust compounds films in sea water prove better anti-corrosive properties than those of minium films. These products could also be applied to slightly rusted steel surfaces without any danger of under rusting. They are generally less surface sensitive than the usual anti-corrosive paints. Examples in practice prove their great possibilities of use. These compounds have proved to be good not only on iron and steel but also in the reconditioning of old hot galvanized constructions which had been exposed to atmosphere for a longer time.
    Notes: Zinkstaubkompounds sind Produkte, welche vorwiegend Zinkstaub und daneben kleinere Mengen eines Bindemittels und Lösungsmittel erhalten. Im trocknen Film sollen mindestens 90% Zinkstaub vorhanden sein.Hiermit wird erreicht, daß die Teilchen in metallischem Kontakt miteinander somit der Metalloberfläche stehen.Die Rostschutzwirkung der Zinkstaubkompounds beruht auf einem kathodischen Schutz sowie auf der Abdichtung des Untergrundes von der Atmosphäre. Die Schicht wird nämlich durch Bildung unlöslicher Zinksalze verdichtet und deren Schutzwirkung dadurch noch gesteigert. Im Meereswasser zeigen Zinkstaub-Kompounds einen höheren Rostschutz als Bleimennige bei beschädigten Stellen im Film. Auch auf leicht gerosteten Stahloberflächen lassen sich diese Produkte aufbringen, ohne daß die Gefahr der Unterrostung besteht.Sie sind also im allgemeinen weniger oberflächenempfindlich als die normalen Rostschutzfarben. Beispiele aus der Praxis zeigen ihre beachtlich weiten Anwendungsmöglichkeiten.Nicht nur auf Eisen und Stahl, sondern auch für die Aufarbeitung alter feuerverzinkter Konstruktionen, welche seit längerer Zeit der Atmosphäre ausgesetzt waren, haben die Kompounds sich bewährt.
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    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 580-581 
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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
    Description / Table of Contents: Model Tests for Investing Cathodic Protection in SoilTo clear the mechanisms of the corrosion processes of buried metals corrosion tests were carried out under varying conditions of the water-air-concentration by means of model cells; these cells consisted of two electodes of different metals of the same size. Iron being in metallic connection with zinc was found to be nearly totally protectable under increased attack of the zinc as the base electrode if the corrosion takes place under lack of oxygen; which means that the accession of oxygen to the electrode is hindered by saturation of the soil with water.
    Notes: Zur Klärung der an metallen im Erdreich ablaufenden Korrosionsvorgänge wurden an Modellelementen, die aus zwei verschiedenen Metallen mit gleich großer Oberfläche bestanden, unter verschiedenen Verhältnissen von „ Wasser zu Bodenluft“ Korrosionsversuche durchgeführt. Dabei wurde festgestellt, daß man Eisen, das mit Zink in leitender Verbindung steht, bei verstärktem Angriff des Zinks als unedle Elektrode fast vollständig schützen kann, wenn der Korrosionsvorgang unter Sauerstoffmangel abläuft; der Sauerstoffzutritt zu den Elektroden also durch eine Sättigung des Erdreichs an Wasser gehindert ist.
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    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 589-594 
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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
    Additional Material: 2 Tab.
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    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 595-598 
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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 6 (1955), S. 605-606 
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    Keywords: Chemistry ; Polymer and Materials Science
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    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 603-605 
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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 6 (1955), S. 599-602 
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    Keywords: Chemistry ; Polymer and Materials Science
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    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 607-611 
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    Keywords: Chemistry ; Polymer and Materials Science
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    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 611-611 
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    Keywords: Chemistry ; Polymer and Materials Science
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    Materials and Corrosion/Werkstoffe und Korrosion 6 (1955), S. 611-612 
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    Keywords: Chemistry ; Polymer and Materials Science
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    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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