摘要
用ＰｂＯ、ＺｒＯ＿２、ＴｉＯ＿２等原料经固相反应烧结制备了ＰＺＴ基四元系压电陶瓷。ＸＲＤ、ＳＥＭ及密度测试表明，材料主晶相为四方晶系的Ｐ４ｍｍ群，烧结致密度较好。极化后的性能测试表明，材料具有高介电系数（ε＿ｒ＝２０１５），压电系数（ｄ＿（３３）＝５７８×１０￣（－１２）Ｃ／Ｎ），机电耦合系数（Ｋ＿（３３）＝０．８１）和良好的机械品质因数（Ｑ＿ｍ＝５４３．８），是压电高压装置的理想材料。
Piezoelectric ceramics based on PZTceramics were prepared in solid state reaction withmixture of PbO,TiO_2 and ZrO_2 etc. XRD and SEMwere used to confirm that the main phase in thematerial was te tragonal PZT lattice. Measurementson polarized products indicated that dielectricconstant,piezoelectric constant,electromechaniccoupling factor and mechanical quality factor were ε_r=2015,d_(33)=578.06×10￣(-12)C/N,K_(33)=0.81 and Q_m=543.8,respectively.
出处
《功能材料》
EI
CAS
CSCD
1995年第4期317-320,共4页
Journal of Functional Materials
关键词
四元系
压电陶瓷
压电系数
机电耦合系数
Quaternary System PiezoelectricCeramics,Piezoelectric Constant, ElectromechanicalCoupling Factor
