一种大功率压电陶瓷变压器材料研究  

Studies of a Kind of Piezoelectric Ceramics for High-power Piezoelectric Transformer

作　　者：杜红亮[1] 裴志斌[2] 车俊[2] 王翠香[2] 屈绍波[2] 陈建华[1] 

机构地区：[1]空军工程大学工程学院,陕西西安710038 [2]空军工程大学文理学院,陕西西安710051

出　　处：《电子元件与材料》2004年第9期19-21,共3页Electronic Components And Materials

基　　金：陕西省自然科学基金资助项目(2000C03);空军工程大学基金资助项目(20002X08)

摘　　要：采用传统陶瓷工艺制备了Pb(Ni1/2W1/2)O3-Pb(Mn1/3Sb2/3)O3-Pb(Ti1/2Zr1/2)O3(PNW-PMS-PZT)四元系压电陶瓷。分析了粉体和陶瓷的相结构组成,结果表明烧结温度的提高和PZT含量的增加有助于钙钛矿相的生成,同时发现PZT的含量在0.91～0.93附近有准同型相界存在。研究了室温下烧结温度和PMS含量对相对介电常数εr,机电耦合系数kp,机械品质因数Qm和压电常数d33的影响,实验表明在室温下随着PMS含量的增加εr、kp、d33逐渐减小,Qm增加;随着烧结温度的提高,kp、d33增大。制得了室温下εr为1959,d33为390pC/N,kp为0.614,Qm为1349的大功率压电陶瓷变压器压电材料。The piezoelectric ceramics (PNW-PMS-PZT) were prepared by traditional ceramics process. The phase structure of calcined powders and sintered ceramics were analyzed. Results show that increase of the sintering temperature and the content of PZT solid solution helped to create perovskite phase. The influence of sintering temperature and the content of PMS on dielectric constantεr, piezoelectric constant d33, electromechanical coupling factor kp and mechanical quality factor Qm have been studied. Results show that as the amount of PMS solid solution increased in system,εr, kp and d33 decreased, Qm increased. Sintering temperature increased also can improve kp and d33, At last, the piezoelectric material which haveεr=1959, kp=0.614, Qm=1349, d33=390 pC/N has been obtained for high-power piezoelectric transformer.

关 键 词：电子技术 PNW-PMS—PZT 压电陶瓷变压器:压电性能 

分 类 号：TM282[一般工业技术—材料科学与工程]