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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 619 (1993), S. 63-69 
    ISSN: 0044-2313
    Keywords: Vanadium niobium oxides ; phase diagrams ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The Phase Relations in the System V/Nb/O. I. Coexistence Relations in the Section V2O5/Nb2O5/VO2/NbO2.Phase relations in the section Nb2O5/V2O5/VO2/NbO2 of the ternary system V/Nb/O have been studied by X-ray diffraction. The investigated samples were prepared by high temperature synthesis at 900°C-1000°C.The section Nb2O5/V2O5/VO2/NbO2 is charakterized by fife three phase regions: The limits of solubility of the pseudobinary system were ascertained by determination of lattic parameters of powder samples: \documentclass{article}\pagestyle{empty}\begin{document}$$ \begin{array}{*{20}c} {{\rm LG1:}\,{\rm 62} \pm \,{\rm 2mol}\% {\rm NbO}_2 /38 \pm \,2{\rm mol}\% {\rm VO}_{\rm 2} } \hfill \\ {{\rm LG2:}\,14 \pm \,{\rm 2mol}\% {\rm NbO}_2 /86 \pm \,2{\rm mol}\% {\rm VO}_{\rm 2} } \hfill \\ \end{array} $$\end{document}
    Notes: Die Phasenverhältnisse im ternären Teilgebiet Nb2O5/V2O5/VO2/NbO2 wurden durch Temperversuche mit anschließender Röntgenphasenanalyse aufgeklärt. Aus diesen Ergebnissen konnte die Existenz von fünf Koexistenzgebieten postuliert werden: Die Löslichkeitsgrenzen auf dem quasibinären Schnitt VO2/NbO2 wurden durch die Gitterkonstantenbestimmung ermittelt: \documentclass{article}\pagestyle{empty}\begin{document}$$ \begin{array}{*{20}c} {{\rm LG1:}\,{\rm 62} \pm \,{\rm 2mol}\% {\rm NbO}_2 /38 \pm \,2{\rm mol}\% {\rm VO}_{\rm 2} } \hfill \\ {{\rm LG2:}\,14 \pm \,{\rm 2mol}\% {\rm NbO}_2 /86 \pm \,2{\rm mol}\% {\rm VO}_{\rm 2} } \hfill \\ \end{array} $$\end{document}.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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