Effects of K 4 CuNb 8 O 23 and GeO 2 addition on microstructure and piezoelectric properties in KNbO 3 ceramics

• Published in: Japanese Journal of Applied Physics Vol. 58; no. SL; p. SLLD03
• Main Authors: Kato, Hiroki, Ishida, Mirai, Akiyama, Yumi
• Format: Journal Article
• Language: English
• Published: 01.11.2019

Abstract A combined additives study of lead-free KNbO 3 (KN) ceramics in the solid-state reaction was performed to improve the mechanical quality factor ( Q m ) for high power piezoelectric applications. Improved Q m values of 1137 and 1241 were confirmed in KN specimens with addition of 1.0 mol% K...