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Piezo electric lead titanate-zirconate ceramic - contg. pyrochlore type antimonate or niobate, giving balanced characteristics

机译：压电钛酸钛锆酸铅陶瓷-续烧绿石型锑酸盐或铌酸盐，具有平衡的特性

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Piezoelectric ceramic compsn. contg. PbTiO3-PBZrO3 also contains a complex oxide of the pyrochlore type, pref. oxide(s) of the formula M2M'2O7 (in which M is Cd, Pb, Sr or Ba; M' is Sb or Nb). The pref. compsn. is x(M2M'2O7)1/2. (1-x) y(PbTiO3)z(PbZrO3) (in which y and z each = 0.2-0.8; y + z = 1.0 and x = 0.001-0.2). of 0.01-3.0 wt.% MnO2 can be added. The compsn. is prepd. by sintering the individual component at 1000 degrees C, with or without percalcination. The ceramic is used for the prodn. of ultrasonic transducers, ceramic filters and accelerometers, for sound pick-ups etc. The compsn. has a high piezoelectric constant, high stability, balanced electro-mechanical coupling coefft. (Kp) dielectric constant (epsilon) and mechanical quality factor (Qm), low dielectric loss (tan delta), high voltage stability and high flexural strength. It also has an excellent temp. coefft. and generally excellent temp. characteristics.

机译：压电陶瓷复合材料。续PbTiO3-PBZrO3还包含一种烧绿石型的复合氧化物，优选。式M 2 M′2 O 7的氧化物（其中M是Cd，Pb，Sr或Ba; M′是Sb或Nb）。偏好。 compsn。是x（M2M'2O7）1/2。（1-x）y（PbTiO 3）z（PbZrO 3）（其中y和z各自＝ 0.2-0.8; y + z ＝ 1.0和x ＝ 0.001-0.2）。可以添加0.01-3.0重量％的MnO 2。该compsn。准备好了。通过在大于或等于1000摄氏度的条件下烧结单个组件（有或没有过煅烧）。陶瓷用于产品。超声波换能器，陶瓷滤波器和加速度计，用于拾音等。具有高压电常数，高稳定性，平衡的机电耦合系数。（Kp）介电常数（ε）和机械品质因数（Qm），低介电损耗（tanδ），高电压稳定性和高抗弯强度。它的温度也很高。系数。总体来说温度很高特征。

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公开/公告号DE2359818C3

专利类型
公开/公告日1979-04-19

原文格式PDF
申请/专利权人 TDK ELECTRONIC CO. TOKIO;
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申请/专利号DE19732359818
发明设计人 HORI MAKOTO ICHIHARA CHIBA;TAKAHASHI KOJI;TANAKA YOICHI FUNABASHI CHIBA;HASEGAWA TSUTOMU TOKIO;TSURUTA MASAMICHI;
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申请日1973-11-30
分类号C04B35/46;
国家 DE
入库时间 2022-08-22 19:54:25

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