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Jo, Wook
Sustainable Functional Ceramics Lab.
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Textured Pb(Mg1/3Nb2/3)O3 −Pb(In1/2Nb1/2)O3 −PbTiO3 ceramics with enhanced piezoelectric properties and high Curie temperature prepared by low-temperature sintering

Author(s)
Zate, Temesgen TadeyosKo, Nu-RiYu, Hye-LimSun, Jeong-WooJo, WookJeon, Jae-Ho
Issued Date
2024-02
DOI
10.1016/j.sna.2023.114929
URI
https://scholarworks.unist.ac.kr/handle/201301/74388
Citation
SENSORS AND ACTUATORS A: PHYSICAL, v.366, pp.114929
Abstract
A low-temperature sintering is crucial for the fabrication of multilayer piezoceramic actuators through low-cost internal metal electrodes. Herein, Pb(Mg1/3Nb2/3)O3−Pb(In1/2Nb1/2)O3 −PbTiO3 (PMN−PIN−PT) textured ceramics were prepared by a combined use of refined matrix powder and CuO sintering additive. When the matrix powder was refined by planetary ball-milling for 10 h, the sintering temperature of the textured 0.37PMN−0.29PIN−0.34PT ceramics was lowered to 1175 ºC, and a subsequent addition of 1 mol% CuO further lowered it to 950 ºC. The textured 0.37PMN−0.29PIN−0.34PT ceramics with 3 vol% BaTiO3 (BT) template sintered at 950 ºC for 10 h yielded excellent piezoelectric properties, such as a Lotgering factor (LF) of 97%, a unipolar strain of 0.23% at 2 kV/mm, and a Curie temperature (TC) of 231 ºC. These enhanced piezoelectric properties and high TC result from the high texture, transient liquid phase sintering, Cu2+ ion doping, and minimum BT template content.
Publisher
Elsevier BV
ISSN
0924-4247
Keyword (Author)
CuO sintering additiveLow-temperature sinteringPMN–PIN–PTRefined matrix powderTexturing

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