Optimizing High-Power Performance of [001]-Oriented Pb(Mg1/3Nb2/3)-PbTiO3 Through Combined DC and AC Polarization Above Curie Temperature DOI Creative Commons

Yuliang Zhu,

Xiaobo Wang, Wenchao Xue

et al.

Actuators, Journal Year: 2025, Volume and Issue: 14(2), P. 53 - 53

Published: Jan. 24, 2025

Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystals (PMN-PT SCs) are widely utilized in high-performance piezoelectric devices due to their exceptional properties. Among the various post-processing techniques for domain engineering PMN-PT SCs, alternating current polarization (ACP) has become a adopted method enhancing performance. This study proposes new ultrahigh-temperature field-cooling (UFCP) technique, combining direct (DCP) and ACP with field cooling above Curie temperature. Dielectric spectra indicate that UFCP promotes electric field-induced phase transitions point, forming stable multiphase configuration. The transverse coefficient d31 of SCs is 1126 pC/N, electromechanical coupling factor k31 0.559. Compared traditional DCP, increases by 68.6%, mechanical quality Qm 16.7%, figure merit (FOM) 98.3%. Furthermore, under high-power excitation root-mean-square voltage 15 V, achieves 343% increase power 130.5% improvement FOM compared demonstrating its potential performance practical applications.

Language: Английский

Optimizing High-Power Performance of [001]-Oriented Pb(Mg1/3Nb2/3)-PbTiO3 Through Combined DC and AC Polarization Above Curie Temperature DOI Creative Commons

Yuliang Zhu,

Xiaobo Wang, Wenchao Xue

et al.

Actuators, Journal Year: 2025, Volume and Issue: 14(2), P. 53 - 53

Published: Jan. 24, 2025

Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystals (PMN-PT SCs) are widely utilized in high-performance piezoelectric devices due to their exceptional properties. Among the various post-processing techniques for domain engineering PMN-PT SCs, alternating current polarization (ACP) has become a adopted method enhancing performance. This study proposes new ultrahigh-temperature field-cooling (UFCP) technique, combining direct (DCP) and ACP with field cooling above Curie temperature. Dielectric spectra indicate that UFCP promotes electric field-induced phase transitions point, forming stable multiphase configuration. The transverse coefficient d31 of SCs is 1126 pC/N, electromechanical coupling factor k31 0.559. Compared traditional DCP, increases by 68.6%, mechanical quality Qm 16.7%, figure merit (FOM) 98.3%. Furthermore, under high-power excitation root-mean-square voltage 15 V, achieves 343% increase power 130.5% improvement FOM compared demonstrating its potential performance practical applications.

Language: Английский

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