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Synthesis of oxide perovskite solid solutions using the molten salt method

Published online by Cambridge University Press:  31 January 2011

Srikanth Gopalan
Affiliation:
Department of Materials Science and Engineering, 304 EMRO, University of Utah, Salt Lake City, Utah 84112
Karun Mehta
Affiliation:
Department of Materials Science and Engineering, 304 EMRO, University of Utah, Salt Lake City, Utah 84112
Anil V. Virkar
Affiliation:
Department of Materials Science and Engineering, 304 EMRO, University of Utah, Salt Lake City, Utah 84112
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Abstract

The molten salt method has in the past been employed to synthesize a large number of compounds at low temperatures. In this work we report the formation of solid solutions of BaTiO3–SrTiO3 and BaZrO3–SrZrO3 using a molten salt eutectic of NaOH–KOH as a solvent. Alkaline earth carbonates and titanium oxide were used as precursors for the titanate system, and alkaline earth carbonates and zirconium oxide were used as precursors for the zirconate system. It was found that both systems form solid solutions throughout the composition range. The implications of these results with regards to the applicability of the molten salt method as a tool to investigate low temperature phase equilibria are discussed.

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Copyright
Copyright © Materials Research Society 1996

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References

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