Subsolidus Phase Relationship in the CaO-CuO-TiO2 Ternary System at 950 degree C in Air

The subsolidus phase relationship in the CaO-CuO-TiO2 ternary system at 950 degree C in air was investigated. Total 26 samples having various nominal compositions were prepared by the solid-state reaction at 950 degree C in air, and their equilibrium phases were analyzed by powder X-ray diffraction...

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Bibliographic Details
Published in:Journal of the American Ceramic Society 2014-08, Vol.97 (8), p.2416-2419
Main Authors: Lee, Sung-Yun, Kim, Hui Eun, Yoo, Sang-Im
Format: Article
Language:English
Subjects:
Binary systems
CERAMICS
COPPER OXIDE
Diffraction
Phase diagrams
Phase relationships
PHASES
SOLID SOLUTIONS
Ternary systems
TITANIUM DIOXIDE
X RAY DIFFRACTION
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Summary:The subsolidus phase relationship in the CaO-CuO-TiO2 ternary system at 950 degree C in air was investigated. Total 26 samples having various nominal compositions were prepared by the solid-state reaction at 950 degree C in air, and their equilibrium phases were analyzed by powder X-ray diffraction (XRD). The CaCu3Ti4O12 phase exhibits variable stoichiometry and forms as the Ca1-xCu3+xTi4O12-type (-0.019 less than or equal to x less than or equal to 0.048) solid solution at 950 degree C in air. On the basis of our results and previous reports on the binary phase diagrams, the subsolidus phase diagram of the CaO-CuO-TiO2 ternary system could be constructed at 950 degree C in air.
ISSN:0002-7820
1551-2916
DOI:10.1111/jace.13119