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  • Articles: DFG German National Licenses  (4,129)
  • 2010-2014
  • 1950-1954  (3,441)
  • 1920-1924  (688)
  • Cell & Developmental Biology  (2,120)
  • Polymer and Materials Science  (2,009)
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  • Articles: DFG German National Licenses  (4,129)
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  • 101
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 192-194 
    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
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 237-237 
    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
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 392-395 
    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: Determination of the corrosion of Ceramic Products during Operation by means of Temperature-indicating ColoursThe outer temperatures of furnaces bear a constant relation to the operating temperature. The degree of temperature depends only upon the construction of the oven and the fire-resistant materials used. The destruction of the furnace brickwork during operation results in a reduction in the thickness of the bricks used and in the destruction of the bounds by cracks. The consequent local increases in temperature of the outer wall can, in both cases, be determined by the use of Thermocolours and Thermochrom sticks, and will thus serve as a timely warning of the possibility of damage. The colour changes show, by means of the isotherm, the extent of any damage. The colour changes show, by means of the isotherm, the extent of any damage that may already have occurred. Since any existing damage is detected in its early stages, any necessary repairs and possible shutdowns can be prevented.The article closes with a few examples from actual practice illustrative of the timely determination of corrosion of ceramic materials and products.
    Notes: Die Außentemperatur von Öfen steht im konstanten Zusammenhang mit der Betriebstemperatur, sie ist in ihrer Höhe nur abhängig von der angewandten Bauweise und den verwendeten feuerfesten Produkten. Die Zerstörung des Ofenmauerwerkes während des Betriebes erfolgt einerseits in einer Verringerung der Stärke des Steines, andererseits in der Zerstörung des Verbandes durch Risse und Sprünge. Die in beiden Fällen erfolgende lokale Steigerung der Außenwandtemperatur kann durch Thermocolorfarben und Thermochromstifte rechtzeitig erfaßt und flächenmäßig sichtbar gemacht werden, wobei die Farbumschläge durch ihre Isotherme den Umfang der Schadenstelle umschreiben; danach können frühzeitig die Maßnahmen für eine meist kurzfristige Ausbesserung noch vor Eintreten eines größeren Schadens getroffen werden.Durch einige Beispiele aus der Praxis wird die frühzeitige Erfassung der Korrosion keramischer Produkte erläutert.
    Additional Material: 7 Ill.
    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 5 (1954), S. 406-408 
    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
    Electronic Resource
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 277-277 
    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 5 (1954), S. 277-277 
    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
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 278-278 
    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
    Electronic Resource
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 278-278 
    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
    Electronic Resource
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 403-406 
    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
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954) 
    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 5 (1954), S. 19-20 
    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 5 (1954), S. 26-28 
    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
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 37-37 
    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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  • 114
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 38-38 
    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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  • 115
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 40-40 
    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 5 (1954), S. 56-56 
    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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  • 117
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 72-74 
    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 5 (1954), S. 84-87 
    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 corrosion PreventionThe article opens with a short definition of the term „Cathodic Corrosion Prevention“ and then describes the possibilities and limits of the application of cathodic protection by the use of outside current supplies in conjunction with an auxiliary insoluble anode. The appearance of cathodic corrosion, which limits the possibilities of this method of corrosion prevention, is described in detail.The results of tests made with iron and aluminum which was subjected to various representative forms of corrosion are given. The current required per sq. metre and per annum, as determined from these tests, forms a criterion for the cost of cathodic corrosion protection.
    Notes: Nach einer kurzen Definition des Begriffes „kathodischer Korrosionsschutz“ wird auf die Möglichkeiten und Grenzen der Anwendung des kathodischen Schutzes mit einer äußeren Stromquelle und einer unlöslichen Hilfsanode hingewiesen. Die Erscheinung der „kathodischen Korrosion“, die die Möglichkeiten der Anwendung des kathodischen Schutzes begrenzt, wird eingehend besprochen.Versuche mit Eisen und Aluminum in einigen typischen Korrosionsmitteln werden mitgeteilt, wobei der Bedarf an elektrischer Energie je m2 und Jahr einen Anhaltspunkt für die Kosten des kathodischen Schutzes gibt.
    Additional Material: 4 Tab.
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  • 119
    Electronic Resource
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 81-83 
    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 condition of the Surface of Iron upon the Rapidity of Corrosion when buried in SoilExperiments were made to determine the action of various soils sand, clay and loam upon elements Ferough (damp soil) Fe smooth and Ferough (soils I/II) Fesmooth. Current measurements made with element Ferough (damp soil) Fesmooth demonstrated that the reversal of direction of the current, which is dependent on the dampness of the soil, only takes place between very narrow limits. These limits are correlated to the point at which the soil saturated with water goes over to the unsaturated state.The period of time in which the potential difference between two electrodes of varying surface condition (Ferough Fesmooth) placed in soil, disappears after a definite quantity of electrolyte has been added, could be plotted as characteristic curves. Such curves could give information upon the increased soil activity.
    Notes: Messungen über die unterschiedliche Bodenaggressivität (Sand, Ton und Lehm) wurden mit den Elementen Ferauh (feuchter Boden) Feglatt durchgeführt. Stromstärkemessungen mit dem Element Ferauh (feuchter Boden) Feglatt ergaben, daß Umkehr der Stromrichtung, die von der Feuchtigkeit des Bodens abhängt, nur in einem sehr engen Feuchtigkeitsbereich stattfindet, der dem Übergang von mit Wasser gesättigtem in den ungesättigten Boden zugeordnet ist.Die Zeit, in welcher das Potential zwischen zwei Elektroden verschiedener Oberflächenbeschaffenheit (Ferauh, Feglatt) in einem Boden nach Zufügen einer bestimmten Elektrolytmenge verschwindet, dürfte charakteristische Kurven ergeben, die Aufschluß über eine vergrößerte Bodenaggressivität liefern.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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  • 120
    Electronic Resource
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 92-94 
    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
    Description / Table of Contents: The Basic Causes of “Short” Fractures in MetalsThis article forms a report on various lectures delivered at a Meeting which was held to determine the present extent of knowledge of “short” fractures. The lectures were published in Nos. 415 (1953) of the “Raeder Rundschau”, and dealt exhaustively with the phenomena of “short” fractures of various metals in use in industry, as well as of welded and non-welded components. The lectures also included a survey of the causes of “short” fractures as far as present-day knowledge and the various theories on fractures permitted. In addition, various important questions regarding the various methods of testing metals for their liability to short fracture “are discussed”.
    Notes: Referat über Vorträge anläßlich einer Tagung über den heutigen Stand des Sprödbruchproblems.  -  Die in Heft 4/5 (1953) der „Radex-Rundschau“ veröffentlichten Vorträge behandelten das grundsätzliche Erscheinungsbild des spröden Bruches bei verschiedenen metallischen Werkstoffen, ungeschweißten und geschweißten Konstruktionsteilen und gaben eine Uebersicht über die Entstehung von spröden Brüchen, soweit sie nach unseren heutigen Kenntnissen und Anschauungen über den Aufbau der metallischen Werkstoffe und auf Grund der Bruchtheorien abgeleitet werden könne. Ferner wurde auch eingehend die technisch wichtige Frage der Prüfverfahren zur Feststellung der Sprödbruchempfindlichkeit eines Werkstoffes erörtert.
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  • 121
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 104-106 
    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 5 (1954), S. 98-104 
    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.
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  • 123
    Electronic Resource
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 87-92 
    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: Contributions to the Theory of Chemical Polarisation during Solution, Separation and Overstressing of MetalsIt was shown that the appearance of surface layers is an essential factor in the chemical polarisation which occurs during the solution, separation, overstressing, inhibitory action, polishing and passivity of metals. The surface layers exercise a restraining effect on the adjustment of the equilibrium of association. These layers are to be found on practically all metals and even in solutions which are capable of dissolving the material of which the layers are composed. They are created by a slowing down in the speed of the diffusion of the ions necessary for the dissolving of the metal in relation to the more rapid formation of layers on the surface of the metal. Such surface layers differ from the usual macromolecular surface layers, such as oxides or scale, rust, salts, etc., in their solubility. Their formation continues at a very high reproductive rate, even though the top layers are removed, and they form an indication of the behaviour of the metal in solutions after it has been subjected to suitable preliminary treatment. In contra-distinction to the irreversible macro-molecular surface layers, the afore-mentioned layers can be regarded as being reversible micro-molecular coverings.
    Notes: Es wird gezeigt, daß das Auftreten von Deckschichten ein wesentlicher Faktor bei der chemischen Polarisation, bei der Auflösung oder Abscheidung von Metallen, bei der Überspannung, Inhibitorwirkung, Glanzwirkung und Passivität ist. Die Deckschichten bewirken eine Hemmung der Gleichgewichtseinstellung. Sie sind auf praktisch allen Metallen und selbst in solchen Lösungen vorhanden, die an sich befähigt wären, die Deckschichtsubstanz aufzulösen. Sie entstehen durch eine geringere Geschwindigkeit des Diffusionsvorgangs, der für die Metallauflösung erforderlichen Ionen im Vergleich zur schnelleren Deckschichtenbildung unmittelbar auf der Metalloberfläche. Derartige Deckschichten unterscheiden sich wesentlich von den bekannten makromolekularen Deckschichten wie Oxyd- oder Zunderschichten, Rost, Salzschichten usw. durch ihre verschiedene Löslichkeit. Sie bilden sich selbst nach ihrer Entfernung immer wieder und zwar sehr gut reproduzierbar nach und sind ein Kennzeichen für das Metall hinsichtlich seines Verhaltens bei einer bestimmten Vorbehandlung in einer bestimmten Lösung. Sie können im Gegensatz zu den irreversiblen makromolekularen Deckschichten als reversible, mikromolekulare Bedeckungen angesehen werden.
    Additional Material: 3 Ill.
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  • 124
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 94-98 
    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
    Description / Table of Contents: Preparation and Passivation of light metals for paintingAluminum and magnesium alloys are forming natural oxide films, the strengthening of which is performed by several methods of chemical and electrolytic oxidation. Light metals are also protected by insoluble films of metal salts (phosphate films) in a similar manner as the iron metals. In recent years a new method was developed whereby metal organic protective films are produced by using so-called reaction primers (wash primers). All these protective films are functioning likewise as anticorrosive coatings and as adhesive substrates for paint and lacquer coatings.
    Notes: Aluminium- und Magnesium-Legierungen bilden an der Luft natürliche Oxydhäute, deren Verstärkung durch die verschiedenen Verfahren der chemischen und elektrolytischen Oxydation der Leichtmetalle angestrebt wird. Außer durch die unlöslichen Oxydschichten werden Leichtmetalle ebenso wie Eisenmetalle auh durch unlösliche Metallsalzschichten (Phosphatfilme etc.) geschützt. Auch die durch die sog. Reaktionsprimer oder Metallwandler erzeugten metallorganischen Deckschichten werden als antikorrosive Überzüge und Haftgründe für die nachfolgende Lackierung angewendet.
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  • 125
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 107-110 
    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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  • 126
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 110-114 
    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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  • 127
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    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 110-110 
    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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  • 128
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    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 114-114 
    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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  • 129
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 114-114 
    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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  • 130
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 114-117 
    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
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  • 131
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 117-117 
    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
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  • 132
    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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  • 133
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 118-118 
    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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  • 134
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    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), 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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  • 135
    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: Quartz Bricks and BlocksAt first only hollow-ware (tubes, vessels, etc.) suitable for the needs of the chemical and allied industries, was manufactured from quartz produced by fusing pure quartz sand. The production of solid articles was neglected, since the advantages of the non-porous structure, combined with its heat and chemical resistant properties, which protect quartzware from the action of pulverised, liquid and gaseous agents, was only realised later. It was the initiative of users which led to the production of quartz bricks, which were used in copper works, Siemens-Martin furnaces chemical works and certain specialised electric furnaces. These quartz bricks proved to be far superior to all other materials, but were found to be too small and too expensive. A well-known glassworks was successful in developing quartz bricks suitable for tank-linings, whereby a far superior quality of glass was obtained with less contamination, better colours and no bubbles, knots or streaks. The same type of brick was also found ot be of great use in chemical works. Quartz bricks and blocks were first produced by means of compressed resistance fusion and, later, by solid fusion, but in every case one fusion operation was required to produce one brick or block. Nowadays blocks are produced by cutting up billets of large cross-sectional area, so that they can be produced in large quantities at economic prices for all purposes where their application has proved successful.
    Notes: Quarzgut, erschmolzen aus reinem Quarzsand, wurde entsprechend den chemischen und ähnlichen Bedürfnissen vorwiegend als Hohlkörper (Rohre, Gefäße, u. ä.) hergestellt,  -  Vollkörper wurden vernachlässigt,  -  die Vorteile der nichtporösen Struktur wurden erst spät erkannt, die verbunden mit der thermischen und chemischen Festigkeit Quarzgut vor dem Angriff staubförmiger, flüssiger und gasförmiger Agenzien schützt. Erst Verbraucher-Initiative führte zum Quarzgut-Stein, der sich in Kupfer-Raffinier-, in Siemens-Martin-, in Spezial-Elektro-Öfen wie in chemische Analgen eingesetzt, allen anderen Stoffen überlegen erwies, aber zu klein und zu teuer war. Eine bekannte Glashütte entwickelte mit Erfolg den Quarzgut-Wannenstein und erzielte damit weit bessere Gläser,  -  weniger Verunreinigungen, bessere Farben, keine Blasen, Knoten, Schlieren! Der gleiche Stein bewährte sich dann auch für Chemische Großanlagen.  -  Quarzgut-Steine entstanden zunächst aus gepreßten Ein- oder Mehrstab-Widerstandsschmelzen, später aus Vollkörper-Schmelzen, doch ergab eine Schmelze nur einen Block. Heute können Blöcke von einem querschnitts-großen Strang abgetrennt und zerteilt werden,  -  so ist Massen-Herstellung zu billigen Preisen für alle erprobten Zwecke möglich.
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    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 141-147 
    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 5 (1954), S. 157-157 
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    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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  • 138
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    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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  • 139
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    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 168-172 
    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 Water Corrosion in RefineriesThe protection of equipment against the corrosive effects of water is problem that affects underground storage tanks, boilers and other equipment. The degree of corrosion depends essentially on factors such as the presence and nature of im-purities in the water, temperatures prevailing in the system and the velocity of the flowing water. The following methods of corrosion prevention are discussed:  -  cathodic protection, organic coatings (paints), metallic coatings, the addition of corrosion retardants, pretreatment of the water (de-aeration) and choice of suitable metals or alloys as materials of construction.
    Notes: Der Korrosionsschutz von Anlagen gegen Wasser tritt in vielfältiger Gestalt auf, bei unterirdischen Lagertanks, Dampfkesseln und Freikonstruktionen. Für die Stärke des korrosiven Angriffes sind hierbei wesentlich maßgebend die Gegenwart und Natur von Verunreinigungen, die temperatur des Systems und die Strömungsgeschwindigkeit des Wassers. Von den Verfahren zur Korrosionskontrolle werden behandelt: Kathodischer Schutz, organische Überzüge (Anstriche), metallische Überzüge, Hemmstoffzusätze, Änderung der Umgebung durch Vorbehandlung (Entlüftung) der Wässer und Wahl geeigneter Metalle bzw. Legierungen.
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    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 194-195 
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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 5 (1954), S. 197-197 
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    Keywords: Chemistry ; Polymer and Materials Science
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    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. I 
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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 5 (1954), S. 223-224 
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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 5 (1954), S. 230-233 
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    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 235-236 
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    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 238-240 
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    Keywords: Chemistry ; Polymer and Materials Science
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    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954) 
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    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. I 
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    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 398-401 
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    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 408-409 
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    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 412-418 
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    Keywords: Chemistry ; Polymer and Materials Science
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  • 152
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    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. I 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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  • 153
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    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 430-433 
    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 Initial Corrosion of Metals in Contact with Aqueous Solutions at Room TemperaturesThe writer differentiates between two types of initial corrosion, which are characterised either by a rapid, many thousand-fold increase over the initial value (incubation period), or by a very rapid drop in corrosion, which can only be determined by oscillographic (methods at the commencement). In both cases it is assumed that a local element is formed, which can also be proved by evidences of coating.
    Notes: Der Verfasser unterscheidet zwei Bereiche der Anfangskorrosion, die entweder durch ein sehr rasches Ansteigen bis auf das Tausendfache und mehr des Anfangswertes (Inkubationsperiode) oder durch ein sehr rasches (anfänglich nur oszillographisch erfaßbares) Absinken der Korrosion gekennzeichnet sind. In beiden Fällen wird eine Lokalelementbildung angenommen, wie auch an Überspannungserscheinungen festgestellt wird.
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  • 154
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    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 441-451 
    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 Protection of Steel Constructional Work from CorrosionDependence of the formation of rust on climate, presence of electrolytes and the type of steel used  -  Mill scale diminishes the life of protective coatings and should therefore be removed  -  Chipping and other manual methods of scale removal are usually insufficient and should not be used on new constructional work  -  Sand blasting with coarse sand leaves points on the surface of the metal which facilitate the formation of rust, hence, only relatively fine sand should be used for this purpose  -  Flame descaling with a primer applied to the warm surface is advantageous  -  Removal or conversion of rust by chemical means has not proved successful in the case of steel constructional work  -  Wash primer and spray galvanizing  -  Effect of moisture and the chemical action of the ambient atmosphere on the application of protective coatings  -  Importance of the thickness of the film of the coating  -  Summary of the more important binders for use with anti-corrosive paints (oil binders, linseed varnish, hot linseed oil, wood oil)  -  Action and effect of pigments  -  Red lead and lead  -  cyanamide primary colours  -  Alkyd resin paints and oil-alkyd paints  -  Chlorinated rubber paints, chlorinated rubber-oil combinations and chlorinated rubber-alkyd combinations  -  Bituminous anti-corrosive paints on primers of asphalt, bituminous and coal tar pitch  -  Tar pitch emulsions - Suggestions for the choice of suitable anti-corrosive paints.
    Notes: Abhängigkeit der Rostbildung vom Klima, der Anwesenheit von Elektrolyten und der Art des Eisens  -  Walzzunder verringert die Haltbarkeit von Schutzanstrichen und sollte entfernt werden  -  Handentrostung ist meist unzureichend und sollte bei Neukonstruktionen nicht angewandt werden.  -  Grobe Sandstrahlung hinterlässt Spitzen, welche Ansatz zur Rostbildung geben, deshalb relativ fein strahlen  -  Flammentrostung in Verbindung mit Grundanstrich auf noch warme Eisen ist vorteilhaft  -  Chemische Entrostung und Rostumwandlung bei Stahlbauten nicht bewährt  -  Washprimer und Spritzverzinkung  -  Wirkung der Feuchtigkeit und aggressiver Atmosphäre bei der Ausführung von Anstrichen  -  Bedeutung der Filmdicke  -  Schema der wichtigsten Bindemittel für Rostschutzfarben  -  Die Ölbindemittel, Leinöfirnis, Standöl, Holzöl  -  Art und Wirkung der Pigmente  -  Bleimennige und Bleicyanamidgrundfarben  -  Alkydharzfarben und Öl-Alkyd-Kombindationsfarben  -  Chlorkautschukfarben, Chlorkautschuk-Öl-Kombinationen und Chlorkautschuk-Alkyd-Kombinationen  -  Bituminöse Rostschutzfarben auf der Grundlage von Asphalt  -  Bitumen und Steinkohlenteerpech  -  Teerpech-Emulsionen  -  Vorschläge fü die Wahl der je nach Anwendungsgebiet geeigneten Rostschutzfarben.
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    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 461-464 
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    Keywords: Chemistry ; Polymer and Materials Science
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    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 465-466 
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    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 467-468 
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    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 469-469 
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    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 470-470 
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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 5 (1954), S. 478-478 
    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 5 (1954), S. 479-479 
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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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  • 177
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  • 178
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    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. I 
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    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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  • 179
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    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 479-480 
    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 5 (1954) 
    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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  • 181
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    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 481-482 
    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: Rust Prevention by the use of Zinc Oxides containing LeadThis article describes the manufacture, properties and uses of zinc oxides containing lead. Such oxides are known at Home and Abroad under the trade name of “Harzsiegel”. Particular emphasis is laid upon the rust preventing qualities of such oxides.
    Notes: In der vorliegenden Abhandlung werden die Herstellungsweise, Eigenschaften und die Anwendung der bleihaltigen Zinkoxyde, wie sie unter dem Handelsnamen „Harzsiegel“ im In- und Ausland bekannt sind, besonders im Hinblick auf den Rostschutz, kurz beschrieben.
    Additional Material: 1 Ill.
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  • 182
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    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 482-483 
    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: Is Additional Passivation Really Necessary?Even the best types of reaction primers are only capable of meeting average requirements. However, the application of additional coats of red lead does not appear to be advisable, since this pigment already acts as a passivating agent, and, furthermore, adheres firmly to the surface of steelwork.Reaction primers should, therefore, only be used in cases where the paint work does not have to stand up to onerous conditions. For all other anti-corrosive paints, strict adherance to the Rost Recommendations will result in the best primer surface. Mixtures of white lead and micaceous iron ore have proved themselves as being particularly efficaceous in this connection, since they reflect light and are water-resistant.
    Notes: Selbst die besten Typen unter den Reaktions-Grundierungen sind allein nur durchschnittlichen Anforderungen gewachsen. Die zusätzliche Anwendung von Bleimennige-Anstrichen erscheint aber dennoch wenig ratsam, da dieses Pigment an sich schon passivierend wirkt und überdies fest auf der Stahloberfläche haftet. Aus diesem Grunde sollten nur mäßig beanspruchte Lackierungen mit Reaktions-Grundierungen vorgestrichen werden. Für alle übrigen Schutzanstriche stellen nach wie vor die Rost-Vorschriften die bestgeeigente Grundlage dar. Ihnen zufolge haben sich im Deckanstrich Mischungen aus Bleiweiß und Essenglimmer besonders bewährt, da sie gleichzeitig lichtreflektierend und wasserabweisend wirken.
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  • 183
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    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 483-488 
    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 Protection of Industrial Materials by Silica Water TreatmentThis article attempts to set up a critical summary of results obtained in practice at Home and Abroad from the application of Silica water treatment to industrial materials. A further attempt is then made to determine the reasons for any failures to obtain results from the application of this method in practice and to ascertain why the use of this method gives such different results when applied in different locations and under varying external conditions.
    Notes: In diesem Aufsatz wird versucht, aus den bisher bekannt gewordenen in- und ausländischen Erfahrungen in betriebenen Anlagen über die Wirkung der Silikat-Wasseraufbereitung alles das kritisch zusammenstellen, was bisher in dieser Hinsicht einigermaßen feststeht. Auf Grund dieser Zusammenstellung wird versucht, die Ursachen der Versager zu finden, die bei diesem Verfahren in praktisch betriebenen Anlagen bisweilen vorkommen, und die Gründe festzustellen, warum dieses Verfahren an verschiedenen Stellen und unter verschiedenartigen äußeren Bedingungen verschiedenartig wirkt.
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    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 509-511 
    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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  • 185
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    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 497-500 
    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: Self-adhering Plastic Wrappers and Tapes for Surface ProtectionThe present state of the various methods used to protect buried pipes and cables from corrosion are briefly described. Plastic materials have also penetrated this field and are rapidly growing in importance; particularly in the U.S.A., where the greater possibilities of application have resulted in correspondingly greater progress. In addition to pressure-sensitive adhesive tapes having a soft PVC base, similar tapes have also been produced from pure Polyethylene. Special appliances have been designed and constructed for use in applying these plastic tapes. Plastic self-adhesive with a PVC base have of recent years used more and more in Germany. The structure, properties and possibilities of application of adhesive PVC tapes and wrappers are discussed at length. In addition to the specialised use of plastic tapes and wrappers as an anti-corrosive measure for buried pipes and cables, the value of these wrappers for heat insulation purposes is pointed out. They are also specially useful for the surface protection of pipelines in chemical works where high humidities and corrosive vapours are an important factor.
    Notes: Der derzeitige Stand der Technik bei den verschiedenen Verfahren im Korrosionsschutz von erdverlegten Rohren und Kabeln wird kurz beschrieben. Auch die Kunststoffe sind in dieses Spezialgebiet eingedrungen und gewinnen mehr und mehr an Bedeutung; insbesondere hat die Verwendung von Kunststoffbandagen in den USA bei den dort gegebenen größeren Möglichkeiten schnelle Fortschritte gemacht. Neben druckhaftenden Klebebändern auf Basis von weichgestelltem PVC haben sie solche aus reinem Polyäthylen eingeführt. Für das zügige Aufwickeln dieser plastischen Folien sind besondere Vorrichtungen konstruiert worden. In Deutschland werden die plastischen, selbstklebenden Bänder auf der Basis von PVC, insbesondere in den letzten Jahren, mehr und mehr verwendet. Der Aufbau, die Eigenschaften und die Einsatzmöglichkeiten, der klebenden PVC-Bandagen werden eingehend besprochen. Nachen der speziellen Verwendung der plastischen Binden im Korrosionsschutz bei erdverlegten Rohren und Kabeln wird auf die Bedeutung dieser Klebebänder für Wärme- und Kälte;-Isolierung und im Oberflächenschutz bei Leitungen in chemischen Fabriken, wo mit starker Feuchtigkeit und aggressiven Dämpfen zu rechnen ist, hingewiesen.
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  • 186
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    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 488-496 
    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 to the Technology of the Relationship between the Carbon, Ferrite and Titanium. Contents of Austenitic Chrome-Nickel Steels and the Embrittlement in a Brittle Phase at Higher Titanium ContentsThe increase in the Ferrite proportion of austenitic Chrome-Nickel or Chrome-Nickel-Molybdenum steels caused by a reduction in the Carbon content is quantitatively represented. In addition to the decarburisation which occurs during melting, and which is of the order of magnitude of 0,02-0,03% a decarburisation process by annealing in a partial vacuum is also described. The final Carbon content thus obtained approaches the limit that can be determined analytically, i. e., 0,001%. The influence of the drop in Carbon content and the corresponding increase in the Ferrite content is critically examined from the standpoint of the resistance to granular dissociation. A method of increasing this resistance by substitution of the Carbon by Titanium is examined. It is established that when the Carbon is stoichiometrically substituted, the Ferrite content is approximately equal to that of the completely decarburised alloy. A Carbon content of 0,02-0,03% is considered as being sufficient to ensure the necessary resistance to granular dissociation, thereby avoiding the large increase in Ferrite content resulting from any further decarburisation that may be required. A non-magnetic, brittle phase, known as the X phase, which occurs when Titanium over and above the stoichiometric relation is added, is then described. It is assumed that this phase represents a Mo-Ti-Fe Combination, which greatly diminishes the technological properties of the alloy.
    Notes: Die Vergrößerung des Ferrit-Anteiles austenitischer Chrom-Nickel-Molybdän-Stäbe mit fallendem Kohlenstoffgehalt wird quantitativ wiedergegeben; die Entkohlung wird außer auf dem Wege der Schmelzflußentkohlung, die bis herab zu 0,02-0,03% C reicht, noch zusätzlich auf dem Wege der Glühung unter vermindertem Druck beschrieben. Der so erreichbare Endkohlenstoffgehalt nähert sich der analytischen Nachweisbarkeitsgrenze, nämlich 0,001% C. Der Einfluß des fallenden C-Gehaltes und die damit verbundene Steigerung des Ferrit-Gehaltes wird kritisch betrachtet im Hinblick auf die Kornzerfallsbeständigkeit. Die weitere Methode zur Verbesserung dieser Beständigkeit durch Abbindung des C-Gehaltes durch Titan wird gegenübergestellt und festgestellt, daß theoriegemäß bei stöchiometrisch abgebundener Kohle der Ferritgehalt etwa dem der total entkohlten Legierung entspricht. Für die Praxis wird ein C-Gehalt von 0,02 bis 0,03% als ausreichend für die Sicherung der Zerfallsbeständigkeit betrachtet und damit der überaus starke Anstieg des Ferritgehaltes im Falle weiterer Entkohlung vermieden. Bei Ti-Zusätzen weit über das stöchiometrische Verhältnis hinaus wird eine unmagnetische spröde Phase, mit X-Phase bezeichnet, beschrieben, die vermutlich eine Mo-Ti-Fe-Verbindung darstellt und die technologischen Eigenschaften stark verschlechtert.
    Additional Material: 18 Ill.
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    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 512-514 
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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 5 (1954), S. 515-518 
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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 5 (1954), S. 519-520 
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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 5 (1954), S. 521-524 
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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 5 (1954), S. 525-528 
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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 5 (1954), S. 529-531 
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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 5 (1954), S. 500-508 
    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: Residual Currents and CorrosionThe paper describes experiments in suites to confirm the theoretical assumption that the generated current, and hence the rate of corrosion, follows the First Fick Law. The experiments were carried out with + Pt/O2  - electrolyte // non-polarizable anode  -  circuits. The following conclusions were made:As is well known, a strong surge of current results when such a circuit is closed. This surge dies away in periods ranging from a few seconds to minutes. This generated current is attributed to (a) the depolarization of the oxygen absorbed on the surface of the cathode, (b) the current generated by the zone of diffusion, (c) the discharge of the capacity of the double layer. At internal resistances of 500 to 8,000 ohms, i.e., in the residual current area, the closed circuit voltages are approximately proportional to the potential difference of the generating circuit in the pH zone of 2-10, whilst the logarithms of the closed circuit voltages are approximately proportional to the ph values of the catholytes.If the closed circuit is opened and again closed, currents ensue, whose magnitude (in coulombs) up to the time of re-attaining the original closed circuit voltage is proportional to the square root of the time that the circuit was open. This relation holds good for static electrolytes. In the case of electrolytes in motion and longer periods during which the circuit is open, the magnitude of the generated current is considerably less. This indicates a very loose adsorbtion layer, easily disturbed by the movement of the electrolyte.In the case of static electrolytes the coulomb values are dependent on the potential difference in the element, whilst the logarithms of the coulomb value are approximately proportional to the ph value of the catholyte.With very small Oxygen concentrations (0,05 mg O2/1) and varying open circuit periods, two linear branches of curves result when the coulomb values are plotted against the square roots of the open circuit periods corresponding to the generated current (a+b+C) and a respectively.
    Notes: Es wird die schulmäßige Ansicht, daß die Stromlieferung und damit die Korrosionsgeschwindigkeit in einem Sauerstoff-Depolaristationselement durch das 1. Fick'sche Gesetz beschrieben wird, experimentell an Ketten + Pt/O2  -  Elektrolyten // unpolarisierbare Anode  -  nachgeprüft. Dabei wurden u. a. folgende Feststellungen gemacht:Wie bekannt, tritt beim Stromschluß der Kette ein starker Stromstoß auf, der in wenigen Sekunden bis Minuten abklingt. Diese Stromlieferung wird zugeschrieben (a) der Depolarisation des an der Oberfläche der Kathode adsorbierten Sauerstoffes, (b der Stromlieferung durch Ausbildung der Diffusionszone), (c) der Entladung der Kapazität der Doppelschicht. Die Ruhestromstärken sind (bei inneren Widerständen von 500 bis 8000 Ohm, äußerem Widerstand 50 Ohm, also im Reststromgebiet) der Potentialdifferenz der arbeitenden Kette im pH-Bereich von 2-10 annähernd proportional; die Logarithmen der Ruhestromstärken sind dem PH-Wert des Katholyten annähernd proportional.Unterbricht man den Rubestrom, so erhält man beim Wiederschließen Stromkreises Stromflüsse, deren Größe (in Coulomb) bis zur Erreichung der ursprünglichen Ruhestromstärke der Quadratwurzel aus der Abschaltdauer proportional sind. Diese Beziehung gilt für ruhende Elektrolyte. Bei bewegten Elektrolyten ist die gelieferte Strommenge bei längerer Abschaltdauer wesentlich geringer. Dies spricht für eine sehr lockere, bereits durch die Elektrolytbewegung zu störende Adsorptionsschicht.Die Coulombwerte sind bei ruhendem Elektrolyten von der Potentialdifferenz im Element abhängig; die Logarithmen der Coulombwerte sind dem PH-Wert des Katholyten annähernd proportional.Bei sehr kleiner Sauerstoffkonzentrationen (0,05 mg O2/l) ergeben sich bei verschieden langen Abschaltzeiten zwei lineare Kurvenäste, wenn man die Coulombwerte gegen die Quadratwurzel aus der Abschaltzeit aufträgt, entsprechend der Stromlieferung (a + b + c), bzw. a.Nur bei kleinen O2-Konzentrationen und kurzen Abschaltzeiten ist das Produkt aus Ruhestromstärke mal Abschaltzeit gleich der gefundenen Coulombmenge; bei höheren O2-Konzentrationen und längeren Abschaltzeiten (〉 180 sec) gilt diese Beziehung nicht mehr.
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    Materials and Corrosion/Werkstoffe und Korrosion 5 (1954), S. 531-533 
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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 5 (1954), S. 534-534 
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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 5 (1954), S. 534-534 
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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 5 (1954), S. 534-534 
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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 5 (1954), S. 534-534 
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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 5 (1954), S. 535-535 
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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 5 (1954), S. 535-535 
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