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1. (WO2018180771) PIEZOELECTRIC COMPOSITION AND PIEZOELECTRIC ELEMENT

Pub. No.:    WO/2018/180771    International Application No.:    PCT/JP2018/011038
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Wed Mar 21 00:59:59 CET 2018
IPC: H01L 41/187
C04B 35/495
H01L 41/083
Applicants: TDK CORPORATION
TDK株式会社
Inventors: HIROSE, Yuiko
廣瀬 維子
KATOH, Hiroki
加藤 浩輝
HIROSE, Masakazu
廣瀬 正和
Title: PIEZOELECTRIC COMPOSITION AND PIEZOELECTRIC ELEMENT
Abstract:
Provided is a piezoelectric composition that includes a complex oxide containing potassium and niobium, wherein the piezoelectric composition has excellent resistivity and the complex oxide includes a first phase represented by the composition formula KNbO3, and 1 or 2 phases selected from a second phase represented by the composition formula K4Nb6O17, and a third phase represented by the composition formula KNb3O8. Also provided is a piezoelectric element that includes the piezoelectric composition.