俘能器用无铅压电陶瓷材料的制备与性能测试  

Synthesis and Characterizations of BZT-BCT Lead-free Piezoelectric Ceramic for Energy Harvesting Applications

作　　者：易习锋[1] 李江宇[1] 谢淑红[1] 龚跃球[1] 黎露[1] 

机构地区：[1]湘潭大学材料与光电物理学院,湖南湘潭411105

出　　处：《压电与声光》2012年第1期140-142,162,共4页Piezoelectrics & Acoustooptics

基　　金：国家自然科学基金资助项目(10732100;10772155;10972189)

摘　　要：压电元件是俘能器的关键元件,但传统的锆钛酸铅(PZT)材料已不能满足人们对环境的要求。采用传统固相反应法制备了新型Ba(Ti0.8Zr0.2)O3-(Ba0.7Ca0.3)TiO3(BZT-BCT)无铅压电材料,并对其进行了一系列的性能测试。通过1 240℃和1 350℃不同烧结温度的对比,制作了性能较理想的压电材料,可满足俘能器环保应用要求。The piezoelectric material is the key element for energy harvesting devices,yet the traditional PZT ceramics are not environmentally friendly.Using the solid state reaction method we synthesized novel BZT-BCT lead-free ceramics with excellent piezoelectric coefficient and a serial of performance tests were carried out.The structure and properties have been characterized under two different temperatures of 1 240 ℃ and 1 350 ℃.The results showed that the lead-free ceramics had excellent piezoelectric properties and met the environmental application requirments.

关 键 词：压电陶瓷 无铅 俘能器 

分 类 号：TM282[一般工业技术—材料科学与工程] O482.41[电气工程—电工理论与新技术]