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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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
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