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  • Articles  (133)
  • Wiley-Blackwell  (133)
  • 2015-2019
  • 1995-1999  (50)
  • 1985-1989  (83)
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  • Articles  (133)
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  • 1
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Letters Edition 24 (1986), S. 297-298 
    ISSN: 0887-6258
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 0933-5137
    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: Avoidance of Chloride Induced Transgranular Stress Corrosion Cracking of Stainless Steels by InhibitorsThe possibility to avoide chloride induced transgranular SCC of stainless steels with higher contents of chromium and nickel with the aid of organic inhibitors is shown. This method is successful as well in boiling aqueous solutions with high chloride concentration (open system) as in closed systems (higher temperature and pressure) with low chloride contents.
    Notes: Obwohl die Möglichkeit zur Hemmung von Korrosionsvorgängen durch Inhibitoren schon seit langem bekannt ist, wurden bisher kaum Versuche unternommen, die chloridinduzierte Spannungsrißkorrosion von höherlegierten Chrom-Nickel-Stählen durch Anwendung dieser Kenntnisse zu verhindern. In der vorliegenden Arbeit werden Ergebnisse aus Untersuchungen mit Tensiden und handelsüblichen Inhibitoren vorgestellt, die erkennen lassen, daß sowohl in höher chloridhaltigen siedenden wäßrigen Lösungen (offenes System) als auch in geschlossenen Systemen mit geringem Chloridgehalt bei höheren Temperaturen und Drücken eine deutliche Standzeitverlängerung erreichbar ist.
    Additional Material: 11 Ill.
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 19 (1988), S. 1-14 
    ISSN: 0933-5137
    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
    Notes: In Früheren Veröffentlichungen [1,2] wurde bereits eingehend über die Arbeit auf dem Gebiet der Oberflächentechnik berichtet. Nun gilt es, den derzeitigen Stand darzustellen. Dabei sind fünf Schwerpunkte zu nennen: die Galvanotechnik, die Kavitations-Korrosion, die Spannungsrißkorrosion, die Untersuchung von Korrosionsvorgängen bei höheren Temperaturen und Drücken, die Schwingungsrißkorrosion.In jedem dieser Bereiche erfolgt stets eine enge Zusammenarbeit mit der Industrie, sei es z.B. mit Fachfirmen für Galvanotechnik und mit Lohngalvanisierbetrieben, mit Herstellern von Strömungsmaschinen, mit Herstellern und Betreibern von Verbrennungskraftmaschinen, mit der chemischen Industrie und der Mineralölindustrie, mit Stahlwerken sowie auch mit technischen Vereinigungen wie der Gütegemeinschaft Galvanotechnik e.V.Oftmals erfolgen die Anregungen zur Formulierung und Durchführung von Forschungsvorhaben unmittelbar aus der Klärung von Schadensfällen. Untersuchungen aus diesem Problemkreis sind beispielsweise in [3] beschrieben, aber auch in [4] und [5].Nachfolgend stellen die wissenschaftlichen Mitarbeiter in der Abteilung Oberflächentechnik Teilgebiete aus ihren derzeitigen Forschungsarbeiten vor. Dabei ist hervorzuheben, daß dies Ausschnitte sind aus langjährigen Untersuchungen, basierend unter anderem auf vorausgegangenen Dissertationen [6-9] und weiteren wissenschaftlichen Publikationen. So wird eine Kontinuität in der Erforschung des Werkstoffverhaltens bei elektrochemischer und kombinierter mechanisch-elektrochemischer Beanspruchung hergestellt, wobei ständig neue, verfeinerte Untersuchungs-, Meß- und Prüfmethoden Anwendung finden, die zu einem tieferen Verständnis der im einzelnen ablaufenden Schädigungsmechanismen führen und damit die Grundlagen zur Erarbeitung von Maßnahmen zur künftigen Vermeidung oder doch wenigstens Minimierung von Schäden in der Praxis liefern. Dies ist von wesentlicher Bedeutung hinsichtlich der Werkstoffauswahl, der Werkstoffausnutzung, der Betriebssicherheit, der Gebrauchsdauer und der Verfügbarkeit technischer Geräte und Anlagen.
    Additional Material: 41 Ill.
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 18 (1987), S. 99-102 
    ISSN: 0933-5137
    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
    Notes: Der Schwingversuch im frisch angesetzten Kühlmittel zeigt keinen eindeutigen Zusammenhang zwischen Kühlmittelzusatzkonzentration im diskutierten Bereich und Korrosionsschutzwirkung. Das hängt damit zusammen, daß sich  -  wie Voruntersuchungen gezeigt haben  -  bei dieser Versuchstechnik eine Empfindlichkeit gegen Unterkonzentration erst im Bereich von 15 bis 10 Vo1.-% erkennen läßt. Eine derartig niedrige Konzentration ist jedoch in der Prüfvorschrift nicht vorgesehen, da sie für die Praxis uninteressant ist.
    Additional Material: 7 Tab.
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 26 (1995), S. 147-147 
    ISSN: 0933-5137
    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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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 11 (1988), S. 313-317 
    ISSN: 0935-6304
    Keywords: Capillary gas chromatography ; Major metabolites ; Minor metabolites ; Human urine ; Aromatic solvents ; Biological monitoring ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Aromatic solvents are involved in manifold areas of industry and craft. Inhaled solvent vapors are a known health hazard to workers. For medical prevention and toxicological assay specific laboratory methods for urinary metabolites are necessary. An economical capillary gas chromatographic procedure is described which is suitable for routine analysis of major metabolites, sensitive for the determination of minor metabolites, and effective for the separation of chiral metabolic intermediates.
    Additional Material: 5 Ill.
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  • 7
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Polymers for Advanced Technologies 7 (1996), S. 847-852 
    ISSN: 1042-7147
    Keywords: polyoxadiazoles ; pendent imide groups ; 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
    Notes: A series of new poly(1,3,4-oxadiazole-amide)s containing pendent imide groups has been synthesized by solution polycondensation of aromatic diamines containing preformed 1,3,4-oxadiazole rings with two diacid chlorides containing imide rings. These polymers were also prepared by the reaction of the same diacid chlorides with p-aminobenzhydrazide which were subsequently cyclodehydrated in solid state. The polymers were soluble in polar amidic solvents and some of them gave transparent flexible films by casting from solutions. They showed high thermal stability with decomposition temperatures above 400°C and glass transition temperatures in the range of 245-327°C. They had low dielectric constants, in the range of 3.32-3.94, and good tensile properties.
    Additional Material: 5 Tab.
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  • 8
    Electronic Resource
    Electronic Resource
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 12 (1985), S. 43-46 
    ISSN: 1052-9306
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Evidence for a surface self-cleaning sputtering mechanism in fast atom bombardment mass spectrometry involving significant sputtering from the bulk of the glycerol matrix has been obtained from (a) the time dependence of sample ion abundances and chemical noise for bioorganic compounds, (b) determinations of the sputtering volume in glycerol solution, and (c) studies of in situ chemical and biochemical reactions. The relevance of these results for optimal sample/matrix preparation in analytical applications is pointed out.
    Additional Material: 3 Ill.
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  • 9
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 30 (1985), S. 2821-2836 
    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: The physical properties of a new class of ionomers comprising a semirigid polyphenylene ether backbone were investigated. The material was studied principally in the form of films of ca. 150 μm micrometers in thickness. The study focused on material of 600 equivalent weight. Torsion pendulum results showed a significant increase in the glass transition temperature of the ionomer relative to that of its ester precursor but gave no evidence of ionic clustering. Stress-strain studies performed both in water and in 20% KOH solution at 80°C indicated that the mechanical properties of the material remain stable under these conditions. Differential scanning calorimetry was used to investigate both the high temperature behavior and the water uptake of the ionomer films. The behavior of this ionomer at high temperature and in an alkaline solution is of particular interest in view of the possible use of these films as separators in an alkaline electrolysis cell.
    Additional Material: 11 Ill.
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  • 10
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 30 (1985), S. 2837-2846 
    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: The sorption and transport properties of newly developed aromatic carboxylate polymers have been investigated in the context of their application as membrane separators for water electrolyzers. Conductance measurements of aromatic carboxylates of various equivalent weights have been performed as a function of current density, temperature, and electrolyte environment. Results have been compared with those for Nafion 117. The sorption results in dilute and concentrated solution show large water and electrolyte uptake for the aromatic carboxylate films. Furthermore, relatively large sodium ion self-diffusion coefficients have been found in both dilute and concentrated solution environments. The results of these measurements are characteristic of microporous films. The de conductance behavior of the aromatic carboxylate ionomers is quite different from that found for nonporous 1150 equivalent weight Nafion membranes. This difference is caused primarily by the microporous structure of the aromatic carboxylates, which results in large membrane specific conductances.
    Additional Material: 6 Ill.
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