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Integrated Ferroelectrics
An International Journal
Volume 105, 2009 - Issue 1
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Original Articles

EFFECT OF SINTERING TEMPERATURE ON DIFFUSE PHASE TRANSITION OF BARIUM ZIRCONATE TITANATE CERAMICS

WEI CAI College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China; School of Metallurgical and Materials Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China
,
JIACHENG GAO College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China
,
MINGYUAN ZHANG School of Metallurgical and Materials Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China
&
CHUNLIN FU School of Metallurgical and Materials Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China
Pages 1-10 | Received 11 Jan 2009, Published online: 20 Sep 2010
 
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ABSTRACT

The crystal structure, surface morphology and dielectric properties of BaZr0.2Ti0.8O3 ceramics sintered at 1250°C, 1300°C and 1350°C for 4 h in air atmosphere were investigated. The BZT ceramics sintered at 1250°C, 1300°C and 1350°C possess a pure perovskite structure and no secondary phase is observed. As the sintering temperature increased, the average grain size of the BZT ceramics increased. The temperature dependence of the dielectric constant was studied and the diffuse transition behavior is enhanced with the increase of sintering temperature.

ACKNOWLEDGMENT

This research is supported by the Science and Technology Research Project of Chongqing Education Committee the Research Foundation of Education Bureau of Chongqing, China (Grant No. KJ081411), and the Chunhui Program, Ministry of Education of China (Grant No. Z2007-1-63013).

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