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.
出处
《电子元件与材料》
CAS
CSCD
北大核心
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)
