Synthesis and thermal stability of a new barium polytitanate compound, Ba1.054Ti0.946O2.946

D. S. Filimonov, Z. K. Liu, C. A. Randall

Research output: Contribution to journalArticle

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Abstract

A new barium polytitanate Ba1.054Ti0.946O2.946 was synthesized by a citrate chemical route. The X-ray powder pattern of this compound was indexed to a hexagonal system, with space group P63/mmc and lattice parameters a = 5.722(4) and c = 13.996(8) Å. Prolonged annealing of the Ba1.054Ti0.946O2.946 in air at temperatures above 1150 °C leads to a peritectoid decomposition reaction yielding Ba2TiO4 and cubic-BaTiO3, consistent with the known phase diagram. A thermal stability study of this compound demonstrates it to be a stable phase under ambient conditions and metastable under low oxygen partial pressures.

Original languageEnglish (US)
Pages (from-to)467-473
Number of pages7
JournalMaterials Research Bulletin
Volume37
Issue number3
DOIs
StatePublished - Mar 1 2002

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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