Nonstoichiometrically activated sintering for Ca1-xSr xTiO3 compound by creating point defects

Ruixing Li; Qing Tang; Shu Yin; Tsugio Sato

doi:10.1021/cm0509274

Nonstoichiometrically activated sintering for Ca_1-xSr _xTiO₃ compound by creating point defects

Ruixing Li, Qing Tang, Shu Yin, Tsugio Sato

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

According to both first principle and materials chemistry, an innovative method for fabricating Ca_1-xSr_x/TiO₃ ceramics was investigated. Ca_1-xSr_xTiO₃ was sintered at temperatures as low as 980 °C by adding 1.0 wt % Li₂Si ₂O₅ without forming a grain boundary phase. It was considered that the sintering was promoted by self-accelerated diffusion due to the formation of point defects caused by doping with Li₂Si ₂O₅. Consequently, a new concept of nonstoichiometrically activated sintering, which is enhanced by point defects without the help of a grain boundary phase, is systematically studied for the first time in the Ca_1-xSr_xTiO₃-Li₂Si₂O ₅ system.

Original language	English
Pages (from-to)	273-278
Number of pages	6
Journal	Chemistry of Materials
Volume	18
Issue number	2
DOIs	https://doi.org/10.1021/cm0509274
Publication status	Published - 2006 Jan 24

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Materials Chemistry

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title = "Nonstoichiometrically activated sintering for Ca1-xSr xTiO3 compound by creating point defects",

abstract = "According to both first principle and materials chemistry, an innovative method for fabricating Ca1-xSrx/TiO3 ceramics was investigated. Ca1-xSrxTiO3 was sintered at temperatures as low as 980 °C by adding 1.0 wt % Li2Si 2O5 without forming a grain boundary phase. It was considered that the sintering was promoted by self-accelerated diffusion due to the formation of point defects caused by doping with Li2Si 2O5. Consequently, a new concept of nonstoichiometrically activated sintering, which is enhanced by point defects without the help of a grain boundary phase, is systematically studied for the first time in the Ca1-xSrxTiO3-Li2Si2O 5 system.",

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T1 - Nonstoichiometrically activated sintering for Ca1-xSr xTiO3 compound by creating point defects

AU - Li, Ruixing

AU - Tang, Qing

AU - Yin, Shu

AU - Sato, Tsugio

PY - 2006/1/24

Y1 - 2006/1/24

N2 - According to both first principle and materials chemistry, an innovative method for fabricating Ca1-xSrx/TiO3 ceramics was investigated. Ca1-xSrxTiO3 was sintered at temperatures as low as 980 °C by adding 1.0 wt % Li2Si 2O5 without forming a grain boundary phase. It was considered that the sintering was promoted by self-accelerated diffusion due to the formation of point defects caused by doping with Li2Si 2O5. Consequently, a new concept of nonstoichiometrically activated sintering, which is enhanced by point defects without the help of a grain boundary phase, is systematically studied for the first time in the Ca1-xSrxTiO3-Li2Si2O 5 system.

AB - According to both first principle and materials chemistry, an innovative method for fabricating Ca1-xSrx/TiO3 ceramics was investigated. Ca1-xSrxTiO3 was sintered at temperatures as low as 980 °C by adding 1.0 wt % Li2Si 2O5 without forming a grain boundary phase. It was considered that the sintering was promoted by self-accelerated diffusion due to the formation of point defects caused by doping with Li2Si 2O5. Consequently, a new concept of nonstoichiometrically activated sintering, which is enhanced by point defects without the help of a grain boundary phase, is systematically studied for the first time in the Ca1-xSrxTiO3-Li2Si2O 5 system.

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Nonstoichiometrically activated sintering for Ca_1-xSr _xTiO₃ compound by creating point defects

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