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  • 1
    Electronic Resource
    Electronic Resource
    Korrosionsversuche an vernickelten Blechen aus beruhigtem und unberuhigtem StahlHerrn Dr. Heinrich Klas zum 60. Geburtstag gewidmet. (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 554-563 
    Details
    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 tests with nickel-plated sheets of killed and rimmed steelWith a number of different types of steel plates (killed and rimmed steel, Thomas steel, Siemens Martin steel, square steel), research has been carried out on the influence of the base metal on the effectiveness of the corrosion protection afforded by the galvanic nickel plating. With plates of the different types of steel subjected to the same finishing treatment, neither the short-time ferroxyle test nor the salt spray test nor storage under moist conditions revealed any noticeable differences in the corrosion resistance of the nickel plating. Minor differences between different types of plates, as they are sometimes observed with out door corrosion, were not noticeable with the short-time test.The investigations lead to the conclusion that, contrary to widespread opinion, killed steel can be nickel-plated with the same corrosion protection effect as rimmed steel.
    Notes: An verschiedenen Stahlblechsorten (beruhigter und unberuhigter Stahl, Th-, SM- und VK-Stahl) wurde der Einfluß des Grundmetalls auf den Rostschutzwert der galvanischen Vernicklung untersucht. Bei gleich vorgeschliffenen Blechen der verschiedenen Stahlsorten ergab die Kurzprüfung im Ferroxyltest, im Salzsprühversuch und bei der Feuchtlagerung keinen deutlichen Unterschied der Rostbeständigkeit der Vernicklung. Feinere Unterschiede, die bei der außenatmosphärischen Korrosion bei verschiedenen Blechsorten teilweise beobachtet wurden, ließen sich im Kurzversuch nicht feststellen.Auf Grund der durchgeführten Untersuchungen ist zu schließen, daß im Gegensatz zu einer verbreiteten Meinung beruhigter Stahl mit gleicher Rostbeständigkeit vernickelt werden kann wie unberuhigter.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19600110906
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  • 2
    Electronic Resource
    Electronic Resource
    Effects of interfaces on the thermal degradation of polymer-metal compositesProd. No. 1458 (1967)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 11 (1967), S. 357-368 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Previous studies by Black and Blomquist on the degradative failure of polymer-metal adhesive bonds have shown that composite failure depends largely on the type of metal substrate employed. In the work reported herein, metal powders of high surface area have been employed to maximize the metal-polymer interface. The composite systems studied consisted for aluminum and iron with polycondensates of bisphenol A-diglycidyl ether, phenol-formaldehyde and poly-2,2′-(m-phenylene)-5,5′-bibenimidazole. The composites were prepared in the absence of air and thermally degraded in a time-of-flight mass spectrometer while the degradation products were continuously monitored from mass 1 to 200. In the polymer and polymer-metal systems investigated, iron accelerated the decomposition of all polymers studied. This was determined by plotting m/e against degradation temperature for the more common mass peaks such as hydrogen and carbon monoxide for the carbon-hydrogen-oxygen-containing polymer and hydrogen cyanide and ammonia for the carbon-hydrogen-nitrogen-containing polymer. This technique offers promise in determining the nature of the interface as well as the effect of the interface on polymer degradation.
    Additional Material: 12 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1967.070110304
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  • 3
    Electronic Resource
    Electronic Resource
    Ozonisation du Polychlorure de Vinyle en Solution (1975)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 47 (1975), S. 61-77 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: When the ozonisation of bulk or suspension poly(vinylchloride) is carried out in tetrachloroethane solution between 0-120°C the molecular weight decreases continuously and the rate of breaking of chains deduced from the intrinsic viscosity variation is constant under isothermal conditions. Whatever the time and temperature of ozonisation may be, at every breaking, β and α chlorinated acid groups are introduced which have been characterized by infrared spectroscopy, high resolution NMR spectroscopy and potentiometric titration in dimethylformamide. Besides these functions, peroxide groups have also been identified and their concentration has been determined for different times and temperatures of ozonisation.This study permits to propose two mechanisms to explain the breaking of chains. The first implies the previous dehydrochlorination of the polymer and the second the formation of unstable peroxides which by decomposition cause the breaking of chains.
    Notes: Quelle que soit la nature du polychlorure de vinyle (masse ou suspension) l'action de l'ozone en milieu homogène dans le tétrachloroéthane provoque la décroissance continue de la masse moléculaire dans le domaine de température 0-120°C et la vitesse de coupure des chaînes déduite des variations de viscosité est constante en conditions isothermes.Quels que soient le temps et la température d'ozonisation, à chaque point de coupure apparaissent des fonctions acides α et β chlorées qui ont été caractérisées par spectroscopie infra-rouge, RMN haute résolution et dosage potentiométrique en milieu diméthylformamide. Outre ces fonctions, des peroxydes ont égé également identifiés dans le polymère et on a suivi leur concentration en fonction des conditions d'ozonisation.Cette étude permet de proposer deux mécanismes pour expliquer la coupure des chaînes, l'un suppose une déhydrochloruration préalable du polymère et l'autre la formation de peroxydes instables qui en se décomposant provoqueraient la coupure des chaînes.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1975.050470105
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  • 4
    Electronic Resource
    Electronic Resource
    Die Pulsirpumpe (Pompe syrene) (1873)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 165 (1873), S. 63-91 
    Details
    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jlac.18731650107
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  • 5
    Electronic Resource
    Electronic Resource
    Polymeranaloge Umsetzungen an Copolymeren mit Maleinsäureanhydrid in der Schmelze (1998)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 70 (1998), S. 560-566 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330700515
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  • 6
    Electronic Resource
    Electronic Resource
    Ueber die kritischen Temperaturen von Flüssigkeitsgemischen (1891)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 266 (1891), S. 266-292 
    Details
    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jlac.18912660304
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  • 7
    Electronic Resource
    Electronic Resource
    Zur Darstellung und Kristallstruktur von CrSO4 · 3 H2O (1990)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 580 (1990), S. 224-224 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19905800127
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  • 8
    Electronic Resource
    Electronic Resource
    Neue Beobachtungen zum chemischen Transport von GeO2 IV. Temperaturabhängigkeit mit dem Transportmittel Wasserstoff (1983)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 502 (1983), S. 89-101 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Novel Observations on the Chemical Transport of GeO2. IV. Temperature Dependence with the Transport Agent HydrogenThe chemical transport of GeO2 with H2 proceeds on the basis of reaction (1) \documentclass{article}\pagestyle{empty}\begin{document}$$ \begin{array}{*{20}c} {{\rm GeO}_{2,{\rm S}} + {\rm H}_2 = 1/{\rm n}({\rm GeO})_{{\rm n},{\rm g}} + {\rm H}_2 {\rm O}_{\rm g} {\rm with}\, {\rm n} = 1,2,3} & {(1)} \\ \end{array} $$\end{document}In the case of a filling pressure of 1 atm H2 a micro crystalline coating of GeO2(hex.) is obtained at T1, using a temperature gradient T2 — T1 = 100 K. In addition acicular, colourless crystals are growing. The shape depends on the mean transport temperatures T̄.Besides GeO2 a small amount of Ge is obtained at temperatures T̄ 〈 1023 K in the colder region of the ampoules. This additional Ge-Transport is not to be expected under equilibrium conditions. Model calculations show, that it is due to a kinetic inhibition of the deposition of GeO2. In a wide range of temperature the experimentally determined rates of transport are in accordance with the expected values.
    Notes: Der chemische Transport von GeO2 mit H2 nach Gl. (1) führt bei konstantem H2-Anfangsdruck (P°(H2) = 1 atm) im Temperaturgradienten T2 — T1 = 100 K zur Abscheidung eines feinkristallinen, farblosen Belages aus GeO2(hex.) bei T1, auf dem in Abhängigkeit von der mittleren Transporttemperatur T̄ nadelförmige Kristalle aufgewachsen sind.\documentclass{article}\pagestyle{empty}\begin{document}$$ \begin{array}{*{20}c} {{\rm GeO}_{2,{\rm S}} + {\rm H}_2 = 1/{\rm n}({\rm GeO})_{{\rm n},{\rm g}} + {\rm H}_2 {\rm O}_{\rm g} {\rm mit}\, {\rm n} = 1,2,3} & {(1)} \\ \end{array} $$\end{document}Zusätzlich tritt bei T̄ 〈 1023 K am weniger heißen Ende der Ampulle eine geringe Abscheidung von Ge auf, die unter Gleichgewichtsverhältnissen nicht zu erwarten wäre. Wie Modellrechnungen zeigen, kann der zusätzliche Ge-Transport auf eine kinetische Hemmung der Abscheidung von GeO2 zurückgeführt werden.Die experimentell bestimmten Transportraten sind in einem weiten Temperaturbereich in guter Übereinstimmung mit den Ergebnissen der Modellrechnungen.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19835020713
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  • 9
    Electronic Resource
    Electronic Resource
    Neue Beobachtungen zum chemischen Transport von GeO2. III. Transportraten mit dem Transportmittel Wasserstoff (1981)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 478 (1981), S. 111-118 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Novel Observations on the Chemical Transport of GeO2. III. Rates of Transport with HydrogenIn the course of a chemical transport in the system GeO2/H2 the composition of the solid phases can change until a steady state is reached. In this case an iterative calculation of the equilibrium is now possible. The method takes into acount the mutual interaction of the processes in the source and in the zone of deposition and allows a general application.The participation of H2 implies a large difference in the coefficients of diffusion which demands the estimation of the interaction of diffusion and laminar flow. The comparision of experimentally determined rates of transport with calculated values shows now that the increasing laminar flow is antagonistic to the deposition of GeO2.
    Notes: Transportbeobachtungen im System GeO2/H2, bei denen sich die Bodenkörperzusammensetzung mit dem Übergang vom Anfangszustand in den stationären Zustand änderte, lassen sich jetzt auf iterativem Wege rechnerisch erfassen. Das Verfahren, das auf der Grundlage einer exakten Massenbilanz die gegenseitige Beeinflussung der Vorgänge im Quellenraum und im Abscheidungsraum berücksichtigt, ist allgemein anwendbar. Die Beteiligung von H2 und die dadurch bedingte große Differenz der Diffusionskoeffizienten machte eine Abschätzung der Wechselwirkung zwischen Diffusion und Strömung erforderlich. Wie ein Vergleich experimenteller und berechneter Transportraten bestätigt, wirkt eine zunehmende Strömung der Abscheidung von GeO2 entgegen.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19814780713
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  • 10
    Electronic Resource
    Electronic Resource
    Neue Beobachtungen zum chemischen Transport von GeO2. V. Zur Mineralisatorwirkung von Na-Verbindungen auf den Modifikationswechsel von GeO2 (1984)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 508 (1984), S. 208-208 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19845080130
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