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  • 1
    Electronic Resource
    Electronic Resource
    Investigations on the Ternary Systems Fe-Mo-O and Ni-Mo-O (1993)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 133-136 (Jan. 1993), p. 627-632 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/00/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.133-136.627.pdf
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  • 2
    Electronic Resource
    Electronic Resource
    STATISTICAL CHARACTERIZATION OF RANDOM CRACK PATTERNS CAUSED BY THERMAL FATIGUE (1992)
    Oxford, UK : Blackwell Publishing Ltd
    Fatigue & fracture of engineering materials & structures 15 (1992), S. 0 
    Details
    ISSN: 1460-2695
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Thermal fatigue experiments performed with an austenitic steel give rise to an irregular pattern of cracks on the specimen surface. The investigations are aimed at characterizing the patterns in quantitative terms and at discerning trends with increasing numbers of cycles. Statistical methods based on different models of stochastic geometry are applied to take into account the random influence in pattern formation. Descriptive statistics as well as stochastic models are used to characterize the damage level. The stochastic models, such as fibre processes and random mosaics, will finally correlate the physical damage process with the random crack pattern observed. It is shown in this paper how the statistical characteristics of the random crack patterns can be related to the statistical characteristics of the stochastic models and the way the physical nature of the damage process influences these quantities.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1460-2695.1992.tb00029.x
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  • 3
    Electronic Resource
    Electronic Resource
    Investigation of the phase barograms and diagrams of the GeI4-I2, GeI4-BiI3 and GeI4-HgI2 systems (1991)
    Springer
    Journal of thermal analysis and calorimetry 37 (1991), S. 1441-1453 
    Details
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Durch Gesamtdruckmessungen mittels eines Membrannullmanometers wurden Phasenbarogramme der Systeme GeI4-I2, GeI4-BiI3 und GeI4-HgI2 ermittelt und die resultierenden Phasendiagramme mit den an Hand von DTA-Messungen erhaltenen verglichen. Alle diese Systeme besitzen einen eutektischen Punkt.
    Notes: Abstract The phase barograms of the systems GeI4-I2, GeI4-BiI3 and GeI4-HgI2 were determined by total pressure measurements in a membrane zero manometer and the resulting phase diagrams were compared with those obtained by DTA measurements. All the systems were single eutectics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01913480
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  • 4
    Electronic Resource
    Electronic Resource
    Description of creep damage by means of stochastic geometry (1991)
    Springer
    Materials science 27 (1991), S. 551-555 
    Details
    ISSN: 1573-885X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Conclusions In this paper, some ideas concerning the statistical modelling of damage on a microstructural level and its relation to macroscopic quantities are given. Two examples using different kinds of approaches for the damage modelling are presented. In the first part, creep damage of an austenitic steel is modelled in a phenomenological way according to experimental observations. This leads to patterns of simulated grain boundary failure, which are in qualitative agreement with experimental findings. A method is indicated how to incorporate micromechanical models in macroscopic relations for creep behavior. In the second part, a micromechanical model for creep damage of alumina is incorporated into the simulated grain boundary structure. Characteristic patterns of the different simulation procedures are shown. As a first step, the results seem to be encouraging. The advantages of the use of stochastic geometry methods in the light of the possible inclusion of more sophisticated models for grain boundary failure and the interaction effects of cavitated grain boundary facets are twofold: Any kind of grain boundary failure can be handled by the stochastic model which is therefore applicable for different kinds of material. Interaction effects of cavitated grain boundary facets can be handled in a very efficient way, which allows the simulation of realistic configurations without a prohibitively large amount of computing time. The framework of the stochastic geometry seems therefore to be a very efficient tool for the development of micromechanical damage models and their relation to a macroscopic description of damage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00732100
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  • 5
    Electronic Resource
    Electronic Resource
    Die Sublimation und thermische Zersetzung von TeJ4 und die Existenz von TeJ2 in der Gasphase (1976)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 419 (1976), S. 200-212 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The Sublimation and the Thermal Decomposition of TeJ4 and the Existence of TeJ2 in the Gaseous PhaseThe sublimation and the decomposition of TeJ4 have been investigated. For the sublimation and the decomposition reactions \documentclass{article}\pagestyle{empty}\begin{document}$$ {\rm TeJ}_{4},{\rm g = TeJ}_{2},{\rm g + J}_{2},{\rm g} $$\end{document} and \documentclass{article}\pagestyle{empty}\begin{document}$$ {\rm TeJ}_{4},{\rm g} = {\rm Te,s} + {2\rm J}_{2},{\rm g} $$\end{document} the values of enthalpy and entropy were derived (see „Inhaltsübersicht“). The existence of TeJ2 in the gaseous phase was demonstrated by equilibrium measurements and chemical transport experiments.
    Notes: Die Sublimation und thermische Zersetzung des TeJ4 wurde untersucht. Es ergeben sich für die Sublimation: \documentclass{article}\pagestyle{empty}\begin{document}$$ \Delta {\rm H}^{\rm o} ({\rm sub}{\rm ., TeJ}_{4},298) = 31,4 \pm 1{\rm kcal/Mol} $$\end{document} und \documentclass{article}\pagestyle{empty}\begin{document}$$ \Delta {\rm S}^{\rm o} ({\rm sub}{\rm ., TeJ}_{4},298) = 51,7 \pm 1,5{\rm cl.} $$\end{document} Für die thermische Zersetzung: \documentclass{article}\pagestyle{empty}\begin{document}$$ {\rm TeJ}_{4},{\rm g = TeJ}_{2},{\rm g + J}_{2},{\rm g} $$\end{document} wurden ΔH° = 19,6 ± 0,8 kcal und ΔS° = 35,9 ± 1 cl erhalten, während für die Reaktion \documentclass{article}\pagestyle{empty}\begin{document}$$ {\rm TeJ}_{4},{\rm g} = {\rm Te,f} + {2\rm J}_{2},{\rm g} $$\end{document} ΔH° = 14,9 ± 1,5 kcal und ΔS° equals; 30,6 ± 2 cl berechnet, wurden. Durch Gleichgewichtsmessungen und Experimente zum chemischen Transport von Te mit Jod wurde die Anwesenheit von TeJ2 in der Gasphase nachgewiesen.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19764190303
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  • 6
    Electronic Resource
    Electronic Resource
    Chemischer Transport von Eisensulfid. III. Der Transport von Bodenkörpern der Zusammensetzung FeS1,00 (1976)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 423 (1976), S. 212-224 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Chemical Transport of Iron Sulphide. III. The Transport of Solids of the Composition FeS1,00It is possible to transport FeS1,0 using such transport systems, in which S2 and other sulphur-consisting gaseous species exist, for instance H2S or some metal sulphides. The systems Fe/S/H/halogene and Fe/S/Ge (Sn)/halogene are studied experimentally and theoretically. The role of the influence of the solid composition upon the gas phase equilibria and the transport behaviour is discussed concerning a solid of the type ABx.
    Notes: Der Transport von FeS1,0 gelingt mit Transportsystemen, in denen außer S2 andere schwefelhaltige Spezies in der Gasphase auftreten, wie H2S oder Metallsulfide. Die Systeme Fe/S/H/Halogen und Fe/S/Ge (Sn)/Halogen werden experimentell und theoretisch untersucht. Die Rolle des Einflusses der Bodenkörperzusammensetzung auf die Gasphasengleichgewichte und das Transportverhalten wird fur einen Bodenkörper ABx diskutiert.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19764230304
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  • 7
    Electronic Resource
    Electronic Resource
    Die Bildungsenthalpie der Tellurtetrahalogenide (1977)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 432 (1977), S. 182-186 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The Enthalpy of Formation for TeX4The enthalpies of formation were derived for the tetrahalogenides TeCl4, TeBr4, and TeJ4 from the enthalpy of solution in KOH. The determination based on the enthalpy of formation for TeO2 and the KX and their enthalpy of solution in KOH. Results see „Inhaltsübersicht“.
    Notes: Die Bildungsenthalpie der Tellurtetrahalogenide TeCl4, TeBr4 und TeJ4 wurde durch Ermittlung der Lösungswärme in KOH bestimmt. Die Bestimmung schließt an die Bildungsenthalpie des TeO2 sowie der KX und deren Lösungswärme in KOH an. Es ergeben sich: .
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19774320125
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  • 8
    Electronic Resource
    Electronic Resource
    Zersetzungsgleichgewicht und Bildungsenthalpie von Te6O11Cl2 (1977)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 434 (1977), S. 233-238 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The Decomposition Equilibrium and the Enthalpy of Formation of Te6O11Cl2The decomposition equilibrium of Te6O11Cl2 has been investigated in a membrane manometer. TeOCl2, TeCl4, TeCl2 and Cl2 exist in the gas phase over solid TeO2 and Te6O11Cl2. From the decomposition equilibrium the enthalpy of formation -472.5 ± 10 kcal/mol and the standard entropy 126 ± 10 cl were derived. The enthalpy of solution in KOH gives the enthalpy of formation ΔH°(Te6O11Cl2, 298) = -473,4 ± 8 kcal/mol.
    Notes: Das Zersetzungsgleichgewicht des Te6O11Cl2 wurde im Membrannullmanometer gemessen. Neben festem TeO2 und Te6O11Cl2 liegen in der Gasphase TeOCl2, TeCl4, TeCl2 und Cl2 vor. Aus dem Zersetzungsgleichgewicht wurde die Bildungsenthalpie zu -472,5 ± 10 kcal/Mol und die Standardentropie zu 126 ± 10 cl abgeleitet.Die Lösungswärme des Te6O11Cl2 wurde durch Lösen in KOH ermittelt. Es folgt die Bildungsenthalpie ΔH°(Te6O11Cl2, 298) = -473,4 ± 8 kcal/Mol.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19774340129
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  • 9
    Electronic Resource
    Electronic Resource
    Gleichgewichtsmessungen im System Te—O—Cl und Te—Cl (1977)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 434 (1977), S. 239-248 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Equilibrium Measurements in the System Te—O—Cl and Te—ClThe reaction behaviour of TeO2,s + TeCl4,g and TeO2,s + Cl2,g were investigated in a membrane manometer. The existence of TeOCl2 in the gas phase and its thermodynamical dates were derived from the temperature dependence of the total pressure. The equilibrium TeCl4 = TeCl2 + Cl2 were measured again. From the reaction of the Te with Cl2 in corresponding relations were concluded, that tellurium monochloride is without of influence for the above mentioned reactions to 1000°C.
    Notes: Das Reaktionsverhalten von TeO2,f + TeCl4,g und TeO2,f + Cl2,g wurde im Membrannullmanometer studiert. Aus dem Verlauf des Gesamtdruckes als Funktion von der Temperatur werden die Existenz von TeOCl2 in der Gasphase abgeleitet und erste thermodynamische Daten gewonnen. Zur Auswertung war eine Neuvermessung des Gleichgewichtes TeCl4 = TeCl2 + Cl2 erforderlich. Aus der Umsetzung von Tellur mit Cl2 entsprechender Verhältnisse folgt, daß bis 1 000°C Tellurmonochlorid bei der Messung obiger Gleichgewichte keine Rolle spielt.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19774340130
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  • 10
    Electronic Resource
    Electronic Resource
    Gleichgewichtsuntersuchungen im Dampf des Kobalt (II)-jodids (1978)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 444 (1978), S. 125-134 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Investigations of the Equilibria in the Cobalt(II) Iodide VapourTotal pressure measurements over cobalt(II) iodide and in the unsaturated vapour lead to equations for the decomposition pressure (I + I2) and for the saturation pressure of CoI2 and Co2I4, respectively, as well as for the constant of the equilibrium \documentclass{article}\pagestyle{empty}\begin{document}$$ 2{\rm CoJ}_{2,{\rm g}} = {\rm Co}_2 {\rm J}_{4,{\rm g}} $$\end{document} Standard enthalpies of formation are obtained: ΔH°f(CoI2,l, 298) = -12.5 ± 3 kcal/mole, ΔH°f(CoI2,g,298) = 28.3 ± 3 kcal/mole, and ΔH°f(Co2I4,g,298) = 15.6 ± 3 kcal/mole. The standard entropy of liquid CoI2 is found to be S°(CoI2,l,298) = 44.5 ± 2 e. u. per mole.
    Notes: Aus Messungen des Gesamtdruckes über flüssigem Kobalt(II)-jodid und im ungesättigten Dampf wird der Zersetzungsdruck (J2 + J), der Sättigungsdruck an CoJ2 und Co2J4 sowie die Lage des Gleichgewichtes \documentclass{article}\pagestyle{empty}\begin{document}$$ 2{\rm CoJ}_{2,{\rm g}} = {\rm Co}_2 {\rm J}_{4,{\rm g}} $$\end{document} ermittelt. Man erhält daraus die Standardbildungsenthalpien ΔH°B(CoJ2,fl, 298) = -12,5 ± 3 kcal/mol, ΔH°B(CoJ2,g, 298) = 28,3 ± 3kcal/mol und ΔH°B(Co2J4,g, 298) = 15,6 ± 3 kcal/mol. Als Standardentropie für flüssiges CoJ2 wird S°(CoJ2,fl,298) = 44,5 ± 2 cl gefunden.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19784440115
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