Ceramics-Silikáty 26, (1) 1 - 5 (1982) |
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PHASE EQUILIBRIA IN THE SYSTEM CaCr₂O₄-Ca₂Fe₂O₅ UNDER REDUCED PARTIAL PRESSURE OF OXYGEN
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Havlica Jaromír, Ambrúz Vladimír, Kanclíř Eduard
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Institute of Inorganic Chemistry, Slovak Academy of Sciences
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The rapid quenching method was used for determining the phase conditions in the system CaCr₂O₄—Ca₂Fe₂O₅ in argon under the partial oxygen pressure of 110 Pa in the temperature interval from 1260 to 1520 °C. The lowest temperature of the appearance of liquid phase was determined at 1405 ± 5 °C, and the formation region of Ca(Cr2Fe)2O4 solid solution and the region of coexistence of Ca(Cr,Fe)₂O₄, Ca₂Fe₂O₅ and CaO were established. A pseudobinary phase diagram of the given system was constructed on the basis of the results obtained.
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