Wan, Dandan Li, Qian Choi, Joo-Young Choi, Ji-Won Yang, Ying Yoon, Seok-Jin 2024-01-20T19:02:32Z 2024-01-20T19:02:32Z 2021-09-01 2010-07 0021-4922 https://pubs.kist.re.kr/handle/201004/131314 A quaternary 0.90Pb(Zr0.48Ti0.52)O-3-0.05Pb(Mn1/3Sb2/3)O-3-0.05Pb(Zn1/3Nb2/3)O-3 (0.90PZT-0.05PMS-0.05PZN) piezoelectric ceramic was synthesized by a conventional method, and CuO was adopted to lower its sintering temperature. The crystal structure, micromorphology, and electrical properties were studied in terms of CuO content. The results indicate that 1.0 wt% CuO addition significantly improves the sinterability of 0.90PZT-0.05PMS-0.05PZN ceramics, lowering the sintering temperature to 900 degrees C and maintaining moderate electrical properties: d(33) = 306 pC/N, Q(m) = 997, k(p) = 53.6%, tan delta = 0.50%, and epsilon(T)(33)/epsilon(0) = 1350. The low-temperature sintering behavior could be explained by the formation of a transient liquid phase by CuO during sintering. Moreover, the endothermic peak at about 950 degrees C in the differential thermal analysis (DTA) curve of the raw ceramic powder provides further evidence of an amorphous phase. To obtain better piezoelectric properties, La2O3 was selected as the donor dopant for the 0.90PZT-0.05PMS-0.05PZN + 1.0 wt% CuO system. Our study demonstrates that La2O3 is very effective in improving piezoelectric properties, markedly increasing d(33) and k(p) without decreasing Q(m). Finally, 0.5 wt% La2O3 added 0.90PZT-0.05PMS-0.05PZN + 1.0 wt% CuO ceramics show excellent electrical properties: d(33) = 355 pC/N, Q(m) = 936, k(p) = 58.4%, tan delta = 0.32%, and epsilon(T)(33)/epsilon(0) = 1590, which are quite suitable for multilayer piezoelectric ceramic actuators. (C) 2010 The Japan Society of Applied Physics English IOP PUBLISHING LTD POWER PIEZOELECTRIC PROPERTIES MORPHOTROPIC-PHASE-BOUNDARY SUBSTITUENTS TRANSFORMER ZNO Low-Temperature Sintered Pb(Zr,Ti)O-3-Pb(Mn,Sb)O-3-Pb(Zn,Nb)O-3 for Multilayer Ceramic Actuators Article 10.1143/JJAP.49.071503 1 JAPANESE JOURNAL OF APPLIED PHYSICS, v.49, no.7 JAPANESE JOURNAL OF APPLIED PHYSICS 49 7 scie scopus 000280383100024 2-s2.0-77956507611 Physics, Applied Physics Article POWER PIEZOELECTRIC PROPERTIES MORPHOTROPIC-PHASE-BOUNDARY SUBSTITUENTS TRANSFORMER ZNO Low temperature sintering Multilayer ceramic actuators Piezoelectrics