Investigation of dielectric and piezoelectric properties in aliovalent Eu3+‐modified Pb(Mg1/3Nb2/3)O3‐PbTiO3 ceramics

Authors

Qinghu Guo, Wuhan University of Technology
Lintao Hou, Wuhan University of Technology
Fei Li, Xi’an Jiaotong UniversityFollow
Fangquan Xia, University of Jinan
Pengbin Wang, Wuhan University of Technology
Hua Hao, Wuhan University of Technology
Huajun Sun, Wuhan University of Technology
Hanxing Liu, Wuhan University of Technology
Shujun Zhang, University of WollongongFollow

RIS ID

136890

Publication Details

Guo, Q., Hou, L., Li, F., Xia, F., Wang, P., Hao, H., Sun, H., Liu, H. & Zhang, S. (2019). Investigation of dielectric and piezoelectric properties in aliovalent Eu3+‐modified Pb(Mg1/3Nb2/3)O3‐PbTiO3 ceramics. Journal of the American Ceramic Society, 102 (12), 7428-7435.

Abstract

Rare earth (Eu3+)-modified Pb(Mg1/3Nb2/3)O3-PbTiO3 (PMN-PT) polycrystalline ferroelectric ceramics were fabricated by high-temperature solid-state sintering, the phase structure, dielectric and piezoelectric properties were investigated. Eu3+ addition was found to significantly improve dielectric and piezoelectric properties of PMN-PT, where the optimized properties were achieved for the composition of 2.5 mol%Eu: 0.72PMN-0.28PT, with the piezoelectric d33 = 1420 pC/N, dielectric εr = 12 200 and electromechanical k33 = 0.78, respectively. All these results indicate that the Eu3+-doped PMN-PT ceramics are promising candidates for high-performance room-temperature piezoelectric devices.