Sol-Gel Derived Li2O Doped BNT-BKT-BT Ceramics:Microstructure and Piezoelectric Properties

摘要：

　　The introduction of lithium ion into BNT-BKT-BT ceramics with sol-gel method allows the development of high-performance lead-free piezoelectric ceramics.Nanoscale precursor powders were synthesized through calcination of amorphous gels,and densified ceramics with single perovskite structure were prepared at a relatively low sintering temperature 1110 ℃.Crystal grain growth was fully developed with the Li+ addition through scanning electron microscope observation.Enhanced electrical properties,piezoelectric constant d33~184 pC/N and planar electromechanical coupling factor kp~0.30,were obtained for the ceramics.

关键词： Lead-free Sol-gel BNT-BKT-BT

作者: Tao Sun Ye-Jing Dai Hong-Qiang Wang

作者单位: Key Laboratory of Advanced Ceramics and Machining Technology,Ministry of Education,School of Materials Science and Engineering,Tianjin University,Tianjin 300072,PR China

会议类型: 国际会议

会议名称: The Seventh China International Conference on High-Performance Ceramics (第七届先进陶瓷国际研讨会(CICC-7))

会议地点: 厦门

会议语种:英文

页码: 1355-1358

在线出版日期: 2011-11-04（万方平台首次上网日期，不代表论文的发表时间）