摘要
采用传统的氧化物混合烧结工艺制备了Pb(Mn1/3Nb2/3)x(Zn1/3Nb2/3)y(ZrzTi1z)1xyO3四元系压电陶瓷材料。研究了成分及预烧温度对该四元系材料组织结构与性能的影响规律。研究结果表明:随着Pb(Mn1/3Nb2/3)O3含量的增多,陶瓷的相结构由四方相转变为三方相,准同型相界位于0.025 PMN～0.075 PMN之间,且Pb(Mn1/3Nb2/3)O3增加至7.5 %(摩尔分数),可以同时提高机电耦合系数kp和机械品质因数Qm,使kp达到0.575,Qm达到1 621;提高预烧温度可以改善陶瓷的烧结特性,同时可以改善陶瓷的介电、压电性能。
Pb(Mn1/3Nb2/3)x(Zn1/3Nb2/3)y(ZrzTi1z)1xyO3quaternary piezoelectric ceramics were prepared by a conventional mixed-oxide process。The effect of the composition and calcining temperature on the microstructure and properties were studied。It was found that with an increase of Pb(Mn1/3Nb2/3)O3,the phase structure changed from tetragonal to rhombohedral and the proper amount of Pb(Mn1/3Nb2/3)O3 would improve elctromechanical coupling factor kp and mechanical quality factor Qm simultaneously,kp=0.575 and Qm=1 621 were achieved;the higher calcining temperature could improve the sintering characteristic and the electric properties.
出处
《电子元件与材料》
CAS
CSCD
北大核心
2004年第12期17-19,共3页
Electronic Components And Materials
基金
航空基金资助项目(02G53044)
关键词
无机非金属材料
四元系压电陶瓷
微观结构
机电耦合系数
机械品质因数
inorganic non-metallic materials
quaternary system piezoelectric ceramic
microstructure
elctromechanical coupling factor
mechanical quality factor
