Ba0.85Ca0.15Ti0.90Zr0.10O3 Lead-free Ceramics with a Sintering Aid of MnO

被引：8
|
作者：
Wu, Jiagang [1 ]
Wang, Zhuo [1 ]
Zhang, Binyu [1 ]
Zhu, Jianguo [1 ]
Xiao, Dingquan [1 ]
机构：
[1] Sichuan Univ, Dept Mat Sci, Chengdu 610064, Peoples R China
来源：
INTEGRATED FERROELECTRICS | 2013年 / 141卷 / 01期
基金：
中国国家自然科学基金;
关键词：
(Ba; Ca)(Ti; Zr)O-3; MnO; Microstructure; Electrical Properties; BARIUM-TITANATE CERAMICS; PIEZOELECTRIC PROPERTIES; TEMPERATURE-DEPENDENCE; BATIO3; CERAMICS; POINT; ABSORPTION; CONSTANTS; CRYSTALS; STRAIN;
D O I：
10.1080/10584587.2013.778757
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Effects of MnO on the microstructure and electrical properties of Ba0.85Ca0.15Ti0.90 Zr0.10O3 (BCTZ) ceramics were investigated. Its sintering temperature decreases, a phase boundary shifts to a higher temperature, and a denser microstructure is induced by introducing MnO. Double P-E loops were observed in BCTZ with x 0.30wt% MnO due to the involvement of more defects. Piezoelectric properties are degraded by doping MnO, but the temperature stability of piezoelectric properties is improved with a low dielectric loss of approximate to 0.63%. As a result, BCTZ ceramics with x = 0.15wt% MnO have optimum electrical properties: d(33) approximate to 382 pC/N, k(p) approximate to 44.5%, E-r approximate to 2611, and tan approximate to 0.63%.
引用
收藏
页码：89 / 98
页数：10
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