制备工艺对PMN-PNN-PZT四元系压电陶瓷结构和性能的影响  

The Effects Preparation Techniques on the Properties of Piezoelctric Ceramics in the Quaternary System of PMN-PNN-PZT

作　　者：周华[1] 孙清池[1] 

机构地区：[1]天津大学材料学院,天津300072

出　　处：《材料导报》2004年第11期95-98,共4页Materials Reports

基　　金：天津大学先进陶瓷与加工技术教育部重点实验室资助项目

摘　　要：通过二次合成工艺制备了0.25 Pb(Mg1/3Nb2/3)O3-0.15Pb(Ni1/3Nb2/3)O3-zPbZrO3-wPbTiO3四元系压电陶瓷,其中w/z=1.6～1.65.研究了合成温度、烧结温度和极化等制备工艺对材料结构和性能的影响.结果表明:在合成温度为1050℃/860℃,烧结温度为1180℃,极化场强为5000V/mm时,材料具有良好的综合性能,其各项主要参数为:d33=(610～633)pC/N,Tc=234～235℃,εT33/ε0=3950～4015,Qm=81,Kp=0.63～0.66,tanδ=(1.7～2.0)%.Quaternary system piezoelectric ceramic 0. 25 Pb(Mg_(1/3)Nb_(2/3))O_3-0.15Pb(Ni_(1-3)Nb_(2/3))O_3-zPbZrO_(3)wPbTiO_3 were prepared by columbite process, where the ratio of w/z was between 1.6 and 1.65. The effects of the preparation techniques, such as the calcining temperature, sintering temperature and polarization field strength, on the microstructures and properties of the piezoelectric ceramics were investigated. Measurements on products indicated the quaternary system exhibited a well-situated property at the calcining temperature of 1050℃/860℃, the sintering temperature 1180℃ and the polarization field strength 5000V/mm, with basic parameters as d_(33)=(610～633)pC/N; T_c=234～235℃;ε_(33)~T=3950～4015;Qm=81;Kp=0.63～0.66;tanδ=(1.7～2.0)%.

关 键 词：合成温度 制备工艺 合成工艺 烧结温度 压电陶瓷 PZT TANΔ PMN 影响 研究 

分 类 号：TB383[一般工业技术—材料科学与工程] TQ174[化学工程—陶瓷工业]