Title:
POLYMER COMPOSITE PIEZOELECTRIC SUBSTANCE, AND METHOD FOR PRODUCING RAW-MATERIAL PARTICLES FOR COMPOSITES
Document Type and Number:
WIPO Patent Application WO/2021/106505
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing: a polymer composite piezoelectric substance that includes lead zirconate titanate particles in a matrix formed from a polymer material, the polymer composite piezoelectric substance having high piezoelectric properties; and a method for producing raw-material particles for composites, the particles being used in the polymer composite piezoelectric substance. According to the present invention, the lead zirconate titanate particles include a polycrystal substance, the crystal structure of primary particles constituting the polycrystal substance of the lead zirconate titanate particles includes tetragonal crystals, and the volume fraction occupied by the tetragonal crystals is 80% or greater, whereby the aforementioned problem is solved.
Inventors:
MIYOSHI TETSU (JP)
Application Number:
PCT/JP2020/041068
Publication Date:
June 03, 2021
Filing Date:
November 02, 2020
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
H04R17/00; C04B35/491; H01L41/09; H01L41/18; H01L41/37
Foreign References:
| US20110233451A1 | 2011-09-29 | |||
| US20110240908A1 | 2011-10-06 | |||
| JP2014199888A | 2014-10-23 | |||
| JP2008218675A | 2008-09-18 | |||
| JP2011091371A | 2011-05-06 |
Attorney, Agent or Firm:
ITOH Hideaki et al. (JP)
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