1-3型压电复合材料的机械品质因素  

Mechanical quality factor property of 1-3 piezoelectric composites

作　　者：李邓化[1] 李光[1] 

机构地区：[1]北京信息工程学院,北京100101

出　　处：《科技通讯（上海）》2004年第1期71-74,共4页

摘　　要：采用切割-填充法制作1-3型压电复合材料,PZT-5A作为压电相,改性618环氧树脂作为聚合物相。研究了1-3型压电复合材料的机械品质因素Qm值与压电相的体积分数及形状参数的关系。压电相的体积分数及形状参数优选后的1-3型压电复合材料可获得较低的机械品质因素Qm值,其值可达10,谐振频率可达850kHz,频带宽度可达86kHz。piezoelectric composites were fabricated by using cut -filling method that PZT -5A was used as piezoelectric phase and modified 618epoxy resin was used as polymer phase.The dependence of mechanical quality fa ctor,Q m ,of 1-3piezoelectric composites on the volume fractions and dimensions of piezoelectric phase were investigated.The optimized 1-3piezoelectric composite material is of lower mechanical quality factor,with a Q m of 10measured at 850kHz and with a width of resonance frequency,WB,of 86kHz.

关 键 词：1-3型 压电复合材料 切割-填充法 频率特性 机械品质因素 

分 类 号：TM282[一般工业技术—材料科学与工程]