Title:
FILLER FOR PIEZOELECTRIC MATERIALS, COMPOSITE PIEZOELECTRIC MATERIAL, COMPOSITE PIEZOELECTRIC ELEMENT, FILLER FOR COMPOSITE PIEZOELECTRIC MATERIALS, AND METHOD FOR PRODUCING ALKALI NIOBATE COMPOUND
Document Type and Number:
WIPO Patent Application WO/2017/221892
Kind Code:
A1
Abstract:
A filler for piezoelectric materials, which is characterized by being alkali niobate compound particles wherein: the ratio of the number of moles of potassium to the total number of moles of sodium and potassium in terms of atoms, namely K/(Na + K) is from 0.460 to 0.495; and the ratio of the total number of moles of alkali metal elements to the number of moles of niobium in terms of atoms, namely (Li + Na + K)/Nb is from 0.995 to 1.005. The present invention is able to provide: a filler for piezoelectric materials, which has excellent piezoelectric characteristics; and a composite piezoelectric material which is composed of the filler for piezoelectric materials and a polymer matrix.
Inventors:
TANABE SHINJI (JP)
KUNITA HAJIME (JP)
KIKUCHI SHUNSUKE (JP)
KUNITA HAJIME (JP)
KIKUCHI SHUNSUKE (JP)
Application Number:
PCT/JP2017/022533
Publication Date:
December 28, 2017
Filing Date:
June 19, 2017
Export Citation:
Assignee:
NIPPON CHEMICAL IND (JP)
International Classes:
H01L41/187; C01G33/00; H01G7/06; H01L41/113; H01L41/18; H01L41/43
Domestic Patent References:
| WO2017010135A1 | 2017-01-19 |
Foreign References:
| JP2015222780A | 2015-12-10 | |||
| JP2007201388A | 2007-08-09 | |||
| JP2015050432A | 2015-03-16 | |||
| JP2015192120A | 2015-11-02 | |||
| JP2014011344A | 2014-01-20 |
Attorney, Agent or Firm:
ASHITABA INTERNATIONAL PATENT OFFICE (JP)
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