Title:
PIEZOELECTRIC CERAMIC, CERAMIC ELECTRONIC COMPONENT, AND PRODUCTION METHOD FOR PIEZOELECTRIC CERAMIC
Document Type and Number:
WIPO Patent Application WO/2020/017325
Kind Code:
A1
Abstract:
This piezoelectric ceramic is characterized by containing a perovskite-type compound containing at least Pb, Zr, Ti, Mn, and Nb, wherein, in an X-ray crystal structure analysis chart of the perovskite-type compound, there is not an X-ray diffraction peak bifurcation of a (101) plane for which an X-ray diffraction peak is detected in the 2θ range of 30.5° to 31.5°, which is a main peak of a PZT tetra phase, and a (110) plane for which an X-ray diffraction peak is detected in the 2θ range of 30.8° to 31.8°, and the number of X-ray diffraction peaks appearing on the basis of the (101) plane and the (110) plane is one.
Inventors:
KANAMORI YUKI (JP)
Application Number:
PCT/JP2019/026405
Publication Date:
January 23, 2020
Filing Date:
July 03, 2019
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
C04B35/491; C01G33/00; H01L41/187
Domestic Patent References:
| WO2015147259A1 | 2015-10-01 | |||
| WO2006129434A1 | 2006-12-07 |
Foreign References:
| KR20060022949A | 2006-03-13 | |||
| JP2010215418A | 2010-09-30 | |||
| JP2010258199A | 2010-11-11 | |||
| JPH07267733A | 1995-10-17 | |||
| JP2006199524A | 2006-08-03 | |||
| JP2017165618A | 2017-09-21 |
Other References:
See also references of EP 3766856A4
Attorney, Agent or Firm:
YASUTOMI & ASSOCIATES (JP)
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