发明授权
- 专利标题： Piezoelectric ceramic material
- 专利标题（中）： 压电陶瓷材料
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申请号： US09696960申请日： 2000-10-27
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公开(公告)号： US06461532B1公开(公告)日： 2002-10-08
- 发明人: Hitoshi Oka , Masakazu Hirose , Yasuo Watanabe , Junji Terauchi
- 申请人： Hitoshi Oka , Masakazu Hirose , Yasuo Watanabe , Junji Terauchi
- 优先权： JP11-310177 19991029; JP2000-313936 20001013
- 主分类号： C04B35462
- IPC分类号： C04B35462
摘要：
A piezoelectric ceramic material comprising a bismuth layer compound containing MII, Bi, Ti and O wherein MII is selected from Sr, Ba and Ca, and containing MIIBi4Ti4O15 type crystals, wherein MII, is represented by SrxBayCaz wherein x+y+z=1, utilizes thickness shear vibration when 0≦x≦ 1, 0≦y≦0.9, and 0≦z≦1, and thickness extensional vibration when 0≦x
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