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Equilibrium Relations Involving Transition-Metal Oxides at High Temperatures

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Book cover Advanced Ceramics III

Abstract

Equilibrium relations in oxide systems involving transition metals as components are discussed in terms of phase diagrams and thermo-dynamic properties of individual solid-solution phases. It is shown that at high temperatures (~1400°–1700°C) and very low oxygen pressures \(({{P}_{{{{O}_{2}}}}}\sim {{10}^{{ - 10}}} - {{10}^{{ - 13}}}atm)\) the constituent transition-metal ions occur in unusual oxidation states and that, consequently, the chemistry and the phase relations under these conditions differ dramatically from those prevailing in air. Systems containing chromium oxide or titanium oxide are used as examples, and some general conclusions are drawn. Finally, projections of future directions of research in this area are presented.

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Authors and Affiliations

  1. Department of Geosciences, The Pennsylvania State University, University Park, Pennsylvania, USA

    Arnulf Muan

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  1. Arnulf Muan
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Editors and Affiliations

  1. The Nishi Tokyo University, Japan

    Shigeyuki Sōmiya (Dean Professor, Professor Emeritus) (Dean Professor, Professor Emeritus)

  2. Tokyo Institute of Technology, Japan

    Shigeyuki Sōmiya (Dean Professor, Professor Emeritus) (Dean Professor, Professor Emeritus)

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© 1990 Elsevier Science Publishers Ltd

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Muan, A. (1990). Equilibrium Relations Involving Transition-Metal Oxides at High Temperatures. In: Sōmiya, S. (eds) Advanced Ceramics III. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0763-8_2

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  • DOI: https://doi.org/10.1007/978-94-009-0763-8_2

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-6829-1

  • Online ISBN: 978-94-009-0763-8

  • eBook Packages: Springer Book Archive

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