公开(公告)号：US5645753A

公开(公告)日：1997-07-08

申请号：US445151

申请日：1995-05-19

申请人： Shuichi Fukuoka ,  Kousei Kamigaki ,  Kazutaka Uchi ,  Katsuhiko Onitsuka

发明人： Shuichi Fukuoka ,  Kousei Kamigaki ,  Kazutaka Uchi ,  Katsuhiko Onitsuka

IPC分类号： C04B35/491 ,  C04B35/499 ,  H01L41/187 ,  C04B35/49

CPC分类号： H01L41/187 ,  C04B35/491 ,  C04B35/499

摘要： A piezo-electric ceramic composition which is favorably used for such applications as ceramic filter, vibrator applying ultrasonic waves, piezo-electric buzzer, piezo-electric ignition unit, ultrasonic wave motor, piezo-electric fan and piezo-electric sensors such as acceleration sensor, knocking sensor, AE sensor, etc. and is particularly used as a member for constituting a piezo-electric actuator. The piezo-electric ceramic composition is a composite perovskite compound which contains, as metal components, Pb, Zr, Ti, Zn, Sb as well as Sr and Ba, or Pb, Zr, Ti, Zn, Sb and at least either one or Sr or Ba, and Ni and Te, wherein when the composition by the molar ratio of metal elements is expressed by the following general formula (1),Pb.sub.1-x-y Sr.sub.x Ba.sub.y (Zn.sub.1/3 Sb.sub.2/3).sub.a Zr.sub.b (Ni.sub.1/2 Te.sub.1/2).sub.c Ti.sub.1-a-b-c O.sub.3 (1)x, y, a, b and c satisfy the following relationships,0.ltoreq.x.ltoreq.0.140.ltoreq.y.ltoreq.0.140

摘要翻译： 一种压电陶瓷组合物，适用于陶瓷过滤器，施加超声波的振动器，压电蜂鸣器，压电点火单元，超声波电机，压电风扇和压电传感器如加速度传感器 爆震传感器，AE传感器等，特别用作构成压电致动器的部件。 压电陶瓷组合物是复合钙钛矿化合物，其中含有作为金属成分的Pb，Zr，Ti，Zn，Sb以及Sr和Ba，或Pb，Zr，Ti，Zn，Sb和至少一种或 Sr或Ba，以及Ni和Te，其中当金属元素的摩尔比的组成由以下通式（1）表示时，Pb1-x-ySrxBay（Zn1 / 3Sb2 / 3）aZrb（Ni1 / 2Te1 / 2 ）cTi1-ab-cO3（1）x，y，a，b和c满足以下关系：0