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

Research output: Contribution to journalArticle

28 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)2595-2601
Number of pages7
JournalJournal of the European Ceramic Society
Volume29
Issue number12
DOIs
Publication statusPublished - 2009 Sep 1

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Effects of Bi <sub>4</sub> Ti <sub>3</sub> O <sub>12</sub> addition on the microstructure and dielectric properties of modified BaTiO <sub>3</sub> under a reducing atmosphere'. Together they form a unique fingerprint.

Cite this