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

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

doi:10.1016/S0025-5408(01)00815-7

Synthesis and thermal stability of a new barium polytitanate compound, Ba_1.054Ti_0.946O_2.946

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

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Abstract

A new barium polytitanate Ba_1.054Ti_0.946O_2.946 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 Ba_1.054Ti_0.946O_2.946 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 language	English (US)
Pages (from-to)	467-473
Number of pages	7
Journal	Materials Research Bulletin
Volume	37
Issue number	3
DOIs	https://doi.org/10.1016/S0025-5408(01)00815-7
State	Published - Mar 1 2002

All Science Journal Classification (ASJC) codes

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

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Filimonov, D. S., Liu, Z. K., & Randall, C. A. (2002). Synthesis and thermal stability of a new barium polytitanate compound, Ba_1.054Ti_0.946O_2.946. Materials Research Bulletin, 37(3), 467-473. https://doi.org/10.1016/S0025-5408(01)00815-7

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

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) {\AA}. 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.",

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AB - 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.

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