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

^*Corresponding author for this work

Tohoku University

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

6 Scopus citations

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
State	Published - 24 Jan 2006
Externally published	Yes

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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.",

author = "Ruixing Li and Qing Tang and Shu Yin and Tsugio Sato",

year = "2006",

month = jan,

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doi = "10.1021/cm0509274",

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volume = "18",

pages = "273--278",

journal = "Chemistry of Materials",

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TY - JOUR

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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U2 - 10.1021/cm0509274

DO - 10.1021/cm0509274

M3 - 文章

AN - SCOPUS:33644521271

SN - 0897-4756

VL - 18

SP - 273

EP - 278

JO - Chemistry of Materials

JF - Chemistry of Materials

IS - 2

ER -

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

Abstract

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