Effects of Bi 4 Ti 3 O 12 addition on the microstructure and dielectric properties of modified BaTiO 3 under a reducing atmosphere

T. A. Jain, C. C. Chen, Kuan-Zong Fung

研究成果: Article

27 引文 (Scopus)

摘要

The effects of Bi 4 Ti 3 O 12 addition on the microstructure and dielectric properties of Mn-modified BaTiO 3 were investigated to develop low temperature fired BaTiO 3 -based ceramics with stable temperature characteristics. The sintering temperature of Mn-doped BaTiO 3 could be reduced to 1200 °C by adding more than 1 mol% Bi 4 Ti 3 O 12 . TEM results show an apparent core-shell structure with 2 mol% Bi 4 Ti 3 O 12 addition. However, it was destroyed when the Bi 4 Ti 3 O 12 content increased from 2 to 4 mol%. The permittivity decreased and the Curie temperature shifted to higher temperature when the Bi 4 Ti 3 O 12 content increased from 0 to 3 mol%. The temperature characteristic of capacitance was very close to the EIA X8R specification when 2 mol% Bi 4 Ti 3 O 12 was added due to the presence of the core-shell grain structure and raised Curie temperature. With adequate Bi 4 Ti 3 O 12 addition, the BaTiO 3 -based system shows great potential for applications in EIA X8R-type multilayer ceramic capacitors.

原文English
頁(從 - 到)2595-2601
頁數7
期刊Journal of the European Ceramic Society
29
發行號12
DOIs
出版狀態Published - 2009 九月 1

指紋

Dielectric properties
Microstructure
Curie temperature
Temperature
Shells (structures)
Ceramic capacitors
Crystal microstructure
Multilayers
Permittivity
Capacitance
Sintering
Transmission electron microscopy
Specifications

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

引用此文

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title = "Effects of Bi 4 Ti 3 O 12 addition on the microstructure and dielectric properties of modified BaTiO 3 under a reducing atmosphere",
abstract = "The effects of Bi 4 Ti 3 O 12 addition on the microstructure and dielectric properties of Mn-modified BaTiO 3 were investigated to develop low temperature fired BaTiO 3 -based ceramics with stable temperature characteristics. The sintering temperature of Mn-doped BaTiO 3 could be reduced to 1200 °C by adding more than 1 mol{\%} Bi 4 Ti 3 O 12 . TEM results show an apparent core-shell structure with 2 mol{\%} Bi 4 Ti 3 O 12 addition. However, it was destroyed when the Bi 4 Ti 3 O 12 content increased from 2 to 4 mol{\%}. The permittivity decreased and the Curie temperature shifted to higher temperature when the Bi 4 Ti 3 O 12 content increased from 0 to 3 mol{\%}. The temperature characteristic of capacitance was very close to the EIA X8R specification when 2 mol{\%} Bi 4 Ti 3 O 12 was added due to the presence of the core-shell grain structure and raised Curie temperature. With adequate Bi 4 Ti 3 O 12 addition, the BaTiO 3 -based system shows great potential for applications in EIA X8R-type multilayer ceramic capacitors.",
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AU - Jain, T. A.

AU - Chen, C. C.

AU - Fung, Kuan-Zong

PY - 2009/9/1

Y1 - 2009/9/1

N2 - The effects of Bi 4 Ti 3 O 12 addition on the microstructure and dielectric properties of Mn-modified BaTiO 3 were investigated to develop low temperature fired BaTiO 3 -based ceramics with stable temperature characteristics. The sintering temperature of Mn-doped BaTiO 3 could be reduced to 1200 °C by adding more than 1 mol% Bi 4 Ti 3 O 12 . TEM results show an apparent core-shell structure with 2 mol% Bi 4 Ti 3 O 12 addition. However, it was destroyed when the Bi 4 Ti 3 O 12 content increased from 2 to 4 mol%. The permittivity decreased and the Curie temperature shifted to higher temperature when the Bi 4 Ti 3 O 12 content increased from 0 to 3 mol%. The temperature characteristic of capacitance was very close to the EIA X8R specification when 2 mol% Bi 4 Ti 3 O 12 was added due to the presence of the core-shell grain structure and raised Curie temperature. With adequate Bi 4 Ti 3 O 12 addition, the BaTiO 3 -based system shows great potential for applications in EIA X8R-type multilayer ceramic capacitors.

AB - The effects of Bi 4 Ti 3 O 12 addition on the microstructure and dielectric properties of Mn-modified BaTiO 3 were investigated to develop low temperature fired BaTiO 3 -based ceramics with stable temperature characteristics. The sintering temperature of Mn-doped BaTiO 3 could be reduced to 1200 °C by adding more than 1 mol% Bi 4 Ti 3 O 12 . TEM results show an apparent core-shell structure with 2 mol% Bi 4 Ti 3 O 12 addition. However, it was destroyed when the Bi 4 Ti 3 O 12 content increased from 2 to 4 mol%. The permittivity decreased and the Curie temperature shifted to higher temperature when the Bi 4 Ti 3 O 12 content increased from 0 to 3 mol%. The temperature characteristic of capacitance was very close to the EIA X8R specification when 2 mol% Bi 4 Ti 3 O 12 was added due to the presence of the core-shell grain structure and raised Curie temperature. With adequate Bi 4 Ti 3 O 12 addition, the BaTiO 3 -based system shows great potential for applications in EIA X8R-type multilayer ceramic capacitors.

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