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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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.",

author = "Filimonov, {D. S.} and Liu, {Z. K.} and Randall, {C. A.}",

note = "Funding Information: Thanks to the industrial members of the Center for Dielectric Studies and NSF I/UCRC for funding this work. ",

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doi = "10.1016/S0025-5408(01)00815-7",

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T1 - Synthesis and thermal stability of a new barium polytitanate compound, Ba1.054Ti0.946O2.946

AU - Filimonov, D. S.

AU - Liu, Z. K.

AU - Randall, C. A.

N1 - Funding Information: Thanks to the industrial members of the Center for Dielectric Studies and NSF I/UCRC for funding this work.

PY - 2002/3/1

Y1 - 2002/3/1

N2 - 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.

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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DO - 10.1016/S0025-5408(01)00815-7

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EP - 473

JO - Materials Research Bulletin

JF - Materials Research Bulletin

SN - 0025-5408

IS - 3

ER -

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

Abstract

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