铌掺杂PMS-PZ-PT三元系压电陶瓷温度稳定性研究  

Temperature Stability of Nb-doped PMS-PZ-PT Ceramics

作　　者：周飞[1] 龙纪文[1] 孟中岩[1] 

机构地区：[1]上海大学材料科学与工程学院,上海201800

出　　处：《无机材料学报》2004年第3期586-592,共7页Journal of Inorganic Materials

基　　金：上海市自然科学基金(00JC14055)

摘　　要：研究了软性Nb_2O_5掺杂对PMS-PZ-PT三元系压电陶瓷温度稳定性能的影响.实验结果表明,适量的掺杂不仅能优化体系的压电性能,而且改善了体系的温度稳定性.改性后的三元系陶瓷频移小,机电耦合系数K_(31)的温度稳定性较好,同时压电常数d_(31)温度稳定性也得到了改善,能满足超声马达等器件对压电陶瓷材料性能的要求.The influences of Nb-doping on the temperature stability of PMS-PZ-PT ternary system ceramics were investigated. The stable temperature dependence of resonance frequency, electromechanical coupling coefficient K-31 and piezoelectric constant d(31) were measured. Results show that the donor dopants can not only optimize piezoelectric properties of the system, but also improve the temperature stability. So the modified PMS-PZ-PT ceramics can achieve the requirements for high-power piezoelectric devices such as ultrasonic motors.

关 键 词：PMS-PZ-PT 温度稳定性 铌掺杂 大功率 

分 类 号：TM282[一般工业技术—材料科学与工程]