High-power properties of piezoelectric hard materials sintered at low temperature for multilayer ceramic actuators

Authors
Yoo, So-YeonHa, Jong-YoonYoon, Seok-JinChoi, Ji-Won
Issue Date
2013-09
Publisher
ELSEVIER SCI LTD
Citation
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, v.33, no.10, pp.1769 - 1778
Abstract
0.05Pb(Mn1/3Sb2/3)O-3-0.05Pb(Al1/2Nb1/2)O-3-0.9Pb(Zr0.48Ti0.52)O-3 (PMS-PAN-PZT) high power piezoelectric system with both La2O3 as a hardener and CuO as a low sintering agent had been synthesized at 900 degrees C for 2 h. When La2O3 doping of the main composition went over 0.5 wt%, the mixed tetragonal and rhombohedral perovskite structure changed to pure rhombohedral perovskite structure. In case of the CuO, 1.0 and 1.5 wt% CuO content significantly improved the sinterability of the PMS-PAN-PZT system processed at 900 degrees C for 2 h. When La2O3 and CuO co-doped in PMS-PAN-PZT ceramics, piezoelectric constants (d(33)), quality factor (Q(m)), electromechanical coupling factor (k(p)) and dielectric constant (epsilon(T)(3)/epsilon(0)) of the piezoelectric ceramics sintered at 900 degrees C for 2h were optimized, such as 336 pC/N, 841, 60%, and 1358, respectively. New developed piezoelectric materials are promising for high power multilayer ceramic actuators. (C) 2013 Elsevier Ltd. All rights reserved.
Keywords
Low temperature sintering; CuO; La2O3; PMS-PAN-PZT; Multilayer ceramic actuators
ISSN
0955-2219
URI
https://pubs.kist.re.kr/handle/201004/127707
DOI
10.1016/j.jeurceramsoc.2013.02.014
Appears in Collections:
KIST Article > 2013
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