Invention Application
US20160293832A1 PIEZOELECTRIC/ELECTROSTRICTIVE MATERIAL, PIEZOELECTRIC/ELECTROSTRICTIVE BODY, AND RESONANCE DRIVING DEVICE 审中-公开
压电/电绝缘材料,压电/电致动力体和谐振驱动装置

  • Patent Title: PIEZOELECTRIC/ELECTROSTRICTIVE MATERIAL, PIEZOELECTRIC/ELECTROSTRICTIVE BODY, AND RESONANCE DRIVING DEVICE
  • Patent Title (中): 压电/电绝缘材料,压电/电致动力体和谐振驱动装置
  • Application No.: US15086786
    Application Date: 2016-03-31
  • Publication No.: US20160293832A1
    Publication Date: 2016-10-06
  • Inventor: Akifumi MORISHITATomohiko HIBINO
  • Applicant: NGK INSULATORS, LTD.
  • Priority: JP2015-071565 20150331
  • Main IPC: H01L41/187
  • IPC: H01L41/187 C04B35/472
PIEZOELECTRIC/ELECTROSTRICTIVE MATERIAL, PIEZOELECTRIC/ELECTROSTRICTIVE BODY, AND RESONANCE DRIVING DEVICE
Abstract:
A piezoelectric/electrostrictive material is composed of Mn and a compound of Pb(Zn, Nb)O3—Pb(Ni, Nb)O3—Pb(Zr, Ti)O3. A ratio of a molar amount of Mn relative to a sum of respective molar amounts of Ni, Zn, Ti, Zr, Nb and Mn is at least 0.001 to no more than 0.015. A ratio of a molar amount of Nb relative to a sum of respective molar amounts of Ni and Zn is at least 2.007 to no more than 2.125.
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