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Abstract:
Alternating current poling (ACP) is an effective method to improve the piezoelectric performance of relaxor-PbTiO3 (PT) ferroelectric single crystal. 0.72 Pb(Mg1/3Nb2/3)O-3-0.28PbTiO(3) (PMN-PT) single crystals have been used to fabricate piezoelectric transducers for medical imaging. Up to date, there are no reports about the full matrix material constants of PMN-0.28PT single crystals poled by ACP. Here, we report the complete sets of elastic, dielectric, and piezoelectric properties of [001]-poled PMN-0.28PT single crystals by direct current poling (DCP) and ACP through the resonance method. The results show that [001]-poled rhombohedral PMN-0.28PT single crystals exhibit the enhancement of longitudinal and transverse piezoelectric properties (d(33) similar to 2000 pC/N, d(31) similar to -1010 pC/N) after ACP. Compared with DCP samples (d(33) similar to 1660 pC/N, d(31) similar to -780 pC/N), the values of d(33) and d(31) increase 20% and 29%, respectively. While the dis value decrease from 110 pC/N for DCP sample to 90 pC/N for ACP sample, showing the decrease in transverse shear piezoelectric properties. In addition, the elastic stiffness coefficients c(11), c(12), c(13), the elastic compliance coefficients s(11), s(12), and the dielectric constants epsilon(1)(1), epsilon(3)(3) have great change compared with DCP and ACP samples. This variation of the property matrices provides a reference for high-performance piezoelectric device design.
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IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL
ISSN: 0885-3010
Year: 2022
Issue: 11
Volume: 69
Page: 3081-3086
3 . 6
JCR@2022
3 . 0 0 0
JCR@2023
ESI Discipline: ENGINEERING;
ESI HC Threshold:66
JCR Journal Grade:1
CAS Journal Grade:2
Cited Count:
WoS CC Cited Count: 7
SCOPUS Cited Count: 10
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 1
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