Enhanced piezoelectric properties in new ternary ceramics CuO-doped PSN-PMN-PT by low-temperature sintering. Issue 7 (1st April 2021)

• Record Type: Journal Article
• Authors: Jia, Bo; Xi, Zengzhe; Guo, Feifei; Zhang, Shaokun; Dong, Shasha; Long, Wei; Li, Xiaojuan; Fang, Pinyang; Dai, Zhonghua
• Is Part Of: Ceramics international. Volume 47:Issue 7(2021)Part A
• Page Start: 9325
• Page End: 9331
• Publication Date: 2021-04-01
• Subjects: Piezoelectric property -- Low temperature sintering -- PSN-PMN-PT -- CuO-doping; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2020.12.060
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: CuO-doped 15Pb(Sc1/2 Nb1/2 )O3 -51Pb(Mg1/3 Nb2/3 )O3 -34PbTiO3 (PSN-PMN-PT) ternary piezoelectric ceramics were synthesized by two-step columbite precursor method. The addition of CuO leads to full densification and well developed grain of the ceramics at a low sintering temperature of 950 °C. Meanwhile, the moderate CuO content significantly improves the phase transition temperature and piezoelectric properties. The optimal comprehensive properties are obtained in PSN-PMN-PT-0.125 wt%CuO ceramics: T r-t = 120 °C, T c = 185 °C, d 33 = 518 pC/N, d 33 * = 853 pm/V, k p = 0.58, P r = 27.8 μC/cm 2, and E c = 6.8 kV/cm. Moreover, excellent pyroelectric current temperature stability is also observed in this composition. These results indicate that low temperature sintered CuO doped PSN-PMN-PT ceramics are promising candidates for application multilayer piezoelectric devices and pyroelectric infrared detectors applications.