Electrical Properties of Force Feedback Piezoelectric Actuator Using (Na,K)(Nb,Sb)O3–(Bi,Na)ZrO3 Ceramics

• Published in: Transactions on electrical and electronic materials Vol. 22; no. 1; pp. 91 - 96
• Main Authors: Yoo, Juhyun, Kang, Sujin, Lee, Jonghyun, Lee, Yong-Woo, Im, In-Ho, Kim, Byoung-kyu, Hong, Jae-Il
• Format: Journal Article
• Language: English
• Published: Seoul The Korean Institute of Electrical and Electronic Material Engineers (KIEEME) 01-02-2021; 한국전기전자재료학회
• Subjects: Chemistry and Materials Science; Electronics and Microelectronics; Instrumentation; Materials Science; Optical and Electronic Materials; Regular Paper; 전기공학; ); K; Sb; O; Lead-free; Na; Nb; ZrO; Piezoelectric actuator; 0.965((Na; 0.035(Bi; Li; Sr
• ISSN: 1229-7607; 2092-7592
• DOI: 10.1007/s42341-020-00266-0

In this study, for developing the multilayer piezoelectric actuator, the (Na,K)(Nb,Sb)O
3
–(Bi,Na)ZrO
3
ceramics were manufactured and their dielectric and piezoelectric properties were investigated. The manufactured ceramics showed the excellent physical properties: density = 4.56 g/cm
2
, k
p
 = 0.47, Q
m
 = 50, ε
r
 = 1944, and d
33
 = 313 pC/N, suitable for piezoelectric actuator. The properties of the piezoelectric actuators are as follows: at the average size of 30.47 mm 
×
 17.92 mm 
×
 1.0 mm, resonance frequency fr = 69.87 kHz, anti-resonance frequency fa = 71.20 kHz, k
p
 = 0.22, d
33
 = 1120 pC/N were appeared, respectively. The three piezoelectric actuators connected in parallel showed the high vibration acceleration of 2.0G at 580 Hz under 70 V, suitable for the force feedback actuator.