Piezoelectric properties of [001]-textured high-power PMnN-PZT piezoceramics sintered at a low temperature. Issue 5 (May 2023)

• Record Type: Journal Article
• Authors: Kim, Eun-Ji; Kim, Sun-Woo; Kim, Dae-Su; Go, Su-Hwan; Chae, Seok-June; Eum, Jae-Min; Yu, Hyeon-Min; Chae, Yeon-Gyeong; Nahm, Sahn
• Is Part Of: Journal of the European Ceramic Society. Volume 43:Issue 5(2023)
• Page Start: 1912
• Page End: 1922
• Publication Date: 2023-05
• Subjects: High-power piezoelectric ceramics -- Low-temperature sintering -- Texturing; Ceramic materials -- Periodicals; Composite materials -- Periodicals; Matériaux céramiques -- Périodiques; Composites -- Périodiques; Ceramic materials; Composite materials; Periodicals; Electronic journals; 666.05
• DOI: 10.1016/j.jeurceramsoc.2022.11.072
• Languages: English
• ISSNs: 0955-2219

Abstract

Abstract: The 1.0 mol% CuO-added 0.14Pb(Mn1/3Nb2/3)O3 -0.86Pb(Zr0.55 Ti0.45 )O3 (CPMnN-PZT) piezoceramics were synthesized at low temperatures (≤ 950 °C) by the columbite method to remove the pyrochlore phase. It exhibited a high Q m of 3016 and a high T C of 309 °C. However, it showed small d 33 and k p values of 143 pC/N and 0.43, respectively. The CPMnN-PZT piezoceramic was textured along the [001] direction using BaTiO3 (BT) templates to enhance its soft piezoelectric properties. The [001]-textured CPMnN-PZT + y vol% BT piezoceramics (1.0 ≤ y ≤ 5.0) were densified at a low temperature of 950 °C with a high Lotgering factor (≥ 92%). The textured sample (y = 1.0) showed a high Q m of 1400 with increased d 33 and k p values of 278 pC/N and 0.58, respectively, and its piezoelectricity showed excellent temperature stability up to 225 °C. Therefore, the textured CPMnN-PZT sample can be used for developing high-power piezoelectric devices. Highlights: PMnN-PZT thick films were textured along the < 001 > direction using BT templates. [001]-textured PMnN-PZT thick films were sintered at 950 °C using CuO additive. Textured PMnN-PZT thick film showed large Q m (1400), d 33 (280 pC/N) and k p (0.58). Textured PMnN-PZT thick film maintained piezoelectric properties up to 225 °C.