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  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Biochimica et Biophysica Acta (BBA)/Biomembranes 941 (1988), S. 119-122 
    ISSN: 0005-2736
    Keywords: Erythrocyte ghost ; Erythrocyte membrane ; Fluorescence polarization ; Fluorescent probe
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine , Physics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Computer Physics Communications 61 (1990), S. 219-224 
    ISSN: 0010-4655
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Computer Science , Physics
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Colloid & polymer science 184 (1962), S. 96-96 
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    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 14 (1963), S. 257-260 
    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: Organic chromates as corrosion inhibitors in primersResearch has been carried out on the corrosion protection afforded by primers based on alkyd resins or zinc chromates with and without inhibitors (organic chromic acid derivates), using as criteria the solubility of the passivating CrO42- ion, the change in the electro-chemical potential, and direct corrosion tests. The best results were obtained with coatings containing 1.8% chromate anion in the form of 1-methylcyclohexanol-1-chromate.
    Notes: Verfolgt wurde der Korrosionsschutzwert von Alkydharz-Grundanstrichen bzw. Grundanstrichen auf Zinkchromatbasis ohne/mit Inhibitoren (organische Derivate der Chromsäure) an Hand des Inlösunggehens des passierenden CrO42--Ions, der Änderung des elektrochemischen Potentials und von direkten Korrosionsversuchen. Beste Ergebnisse zeigten Anstriche, die 1,8% Chromatanion in Form von 1-Methylcyclohexanol-1-Chromat enthalten.
    Additional Material: 7 Ill.
    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 24 (1973), S. 684-691 
    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: Atmospheric corrosion of iron with periodic moisteningPeriodic moistening has a considerable bearing on the model of the corrosion of iron. The frequency of condensation is much more important than the duration of the existence of a condensed layer. Immediately upon condensation a steep increase of the corrosion rate is found. These periods of condensation thus control the rate and the intensity of the attack. The results of measurements concerning the dependence on time, and of radiochemical experiments (concerning the behaviour of sulphate ions) allow the conclusion that condensation intervenes in the reaction system and affects the availability of sulphate ions at the interphase as well as the function of water. In this context the difference between adsorbed and condensed aqueous layers should be taken into consideration. It is suggested to develop a numerical index allowing the duration of accelerated corrosion to be determined in terms of the frequency of condensations.
    Notes: Periodische Befeuchtungen beeinflussen das Modell der Eisenkorrosion beträchtlich. Dabei ist die Häufigkeit der Kondensationen wesentlich einflußreicher als die Dauer der Existenz einer kondensierten Schicht. Unmittelbar nach der Kondensation ist ein starker Anstieg der Korrosionsgeschwindigkeit festzustellen. Diese Kondensationsperioden bestimmen daher die Geschwindigkeit und die Stärke des Angriffs. Auf der Grundlage der Messungen über die Zeitabhängigkeit und auf der Basis von radiochemischen Untersuchungen (über das Verhalten der Sulfationen) kann man schließen, daß die Kondensation in das Reaktionssystem eingreift, und zwar hinsichtlich der Verfügbarkeit der Sulfationen an der Grenzfläche und hinsichtlich der Funktion des Wassers. Dabei ist auch der Unterschied zwischen adsorbierten und kondensierten Wasserschichten zu berücksichtigen. Es wird vorgeschlagen, eine Indexzahl zu entwickeln, welche die Bestimmung der Dauer der beschleunigten Korrosion in Abhängigkeit von der Häufigkeit der Kondensation ermöglicht.
    Additional Material: 13 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 21 (1970), S. 16-21 
    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: Properties of electrolyte films formed through atmospheric corrosionAn investigation has been carried out into the composition of the electrolyte films which are formed on non-metallic materials (glass) as well as on metals (Cu, Zn, Fe) in an atmosphere containing SO2. Fresh as well as pre-corroded specimen were used. It was found that the SO2 absorbed in the solution is very rapidly oxidized into SO42- if the electrolyte film contains dissolved particles of the corrosion products. With 1 to 55 ppm SO2 in the atmosphere, the change in the pH value of the electrolyte is but small and does not vary with the SO2 partial pressure.
    Notes: Die Zusammensetzung der auf nichtmetallischen Materialien (Glas) sowie auf Metallen (Cu, Zn, Fe) an SO2-haltiger Atmosphäre entstehenden Elektrolytfilme wurde untersucht, wobei sowohl frische als auch vorkorrodierte Proben verwendet wurden. Dabei stellte sich heraus, daß das in der Lösung aufgenommene SO2 sehr rasch zu SO42- oxydiert wird, wenn der Elektrolytfilm gelöste Anteile aus den Korrosionsprodukten enthält. Der pH-Wert des Elektrolyten ändert sich bei 1 bis 55 ppm SO2 in der Atmosphäre nur wenig und nicht entsprechend dem SO2-Partialdruck.
    Additional Material: 3 Tab.
    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 26 (1975), S. 118-123 
    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: Universal accelerated weathering cabinet for weathering tests of metals and protective coatingsThe authors have developed a accelerated weathering cabinet with visual observation of specimens during the test. The temperature can be controlled between 0 and 50°C by a current of warm air and a thermostat, while a humidification device enables the relative humidity to be controlled between 50 and 95%. Aggressive additions such as sulphur dioxide, aerosols, salt spray etc. are added through a spray system. Sulphur dioxide concentrations can be controlled between 0.1 and 10 ppm and 1 to 100 ppm respectively.
    Notes: Die Verfasser haben einen Klimaprüfschrank entwickelt, der die visuelle Beobachtung der Proben während er Versuche ermöglicht. Mit Hilfe eines Thermostatsystems kann die Temperatur durch einen Luftstrom Zwischen 0 und 50°C reguliert werden; ein Befeuchtungsgerät gestattet die Einstellung der relativen Feuchtigkeit im Bereich 50 bis 95%. Der Zusatz von aggressive Medien, insbesondere Schwefeldioxid, Aerosolen, Salzsprühnebel usw. erfolgt durch eine Sprühvorrichtung; der Schwefeldioxidgehalt kann dabei zwischen 0,1 und 10 ppm sowie 1 und 100 ppm eingestellt werden.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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