Effects of Doping on Microstructure and Piezoelectric Properties ofPMS-PZ-PT Ceramics

Abstract

Abstract: The microstructure and piezoelectric properties of Pb_0.98Sr_0.02(Mn_1/3Sb_2/3)_x-(Zr_0.5Ti_0.5)_1-xO₃
ceramics with different dopants of Nb₂O₅, NiO, Fe₂O₃ and doping amounts were Investigated. Results show that phases shift from tetragonal phase to rhombohedral phase with the increase of doping amounts. The solubility
of B-site dopants in PMS-PZ-PT ceramics is very small. The compositions with small doping amount have optimized property values of d₃₃, K_p and Q_m. The Q_m can be improved with small amount of acceptor
dopants, but deceases all through with the increase of Nb-doping concentration. The modified compositions have superior piezoelectric properties, so they are practically suitable for the applications in ultrasonic motors.

Key words: doping, PMS-PZ-PT, piezoelectric properties, ultrasonic motors

CLC Number:

TQ174

LONG Ji-Wen,CHEN Hai-Yan,MENG Zhong-Yan. Effects of Doping on Microstructure and Piezoelectric Properties ofPMS-PZ-PT Ceramics[J]. Journal of Inorganic Materials.

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Effects of Doping on Microstructure and Piezoelectric Properties ofPMS-PZ-PT Ceramics

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