Effects of rare earth metal substituents on the piezoelectric and polarization properties of Pb(Zr,Ti)O 3-Pb(Sb,Mn)O 3 ceramics

Yongkang Gao; Kenji Uchino; Dwight Viehland

doi:10.1063/1.1490617

Effects of rare earth metal substituents on the piezoelectric and polarization properties of Pb(Zr,Ti)O ₃-Pb(Sb,Mn)O ₃ ceramics

Yongkang Gao, Kenji Uchino, Dwight Viehland

Materials Research Institute (MRI)

Research output: Contribution to journal › Article › peer-review

41 Scopus citations

Abstract

The piezoelectric properties of Pb(Zr,Ti)O ₃-Pb(Sb,Mn)O ₃ modified with the rare earth (RE) metal species Ce (1.03 Å), Eu (0.95 Å) and Yb (0.85 Å) have been investigated. For all rare earth substituents investigated in this system, regardless of the species ionic radii, the piezoelectric properties were observed to have combinatory hard and soft characteristics. Under high drive levels, the mechanical quality factor and the vibrational velocity were both significantly improved by RE substitution, resulting in a significant increase in ultrasonic power. Systematic polarization-electric field measurements revealed significant relaxational polarization similar to a soft piezoelectric, in addition to an internal field similar to a hard piezoelectric. A possible explanation for the combinatory "hardening" and "softening" effects is the coexistence of randomly quenched and mobile defects.

Original language	English (US)
Pages (from-to)	2094-2099
Number of pages	6
Journal	Journal of Applied Physics
Volume	92
Issue number	4
DOIs	https://doi.org/10.1063/1.1490617
State	Published - Aug 15 2002

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

Access to Document

10.1063/1.1490617

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abstract = "The piezoelectric properties of Pb(Zr,Ti)O 3-Pb(Sb,Mn)O 3 modified with the rare earth (RE) metal species Ce (1.03 {\AA}), Eu (0.95 {\AA}) and Yb (0.85 {\AA}) have been investigated. For all rare earth substituents investigated in this system, regardless of the species ionic radii, the piezoelectric properties were observed to have combinatory hard and soft characteristics. Under high drive levels, the mechanical quality factor and the vibrational velocity were both significantly improved by RE substitution, resulting in a significant increase in ultrasonic power. Systematic polarization-electric field measurements revealed significant relaxational polarization similar to a soft piezoelectric, in addition to an internal field similar to a hard piezoelectric. A possible explanation for the combinatory {"}hardening{"} and {"}softening{"} effects is the coexistence of randomly quenched and mobile defects.",

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AU - Gao, Yongkang

AU - Uchino, Kenji

AU - Viehland, Dwight

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N2 - The piezoelectric properties of Pb(Zr,Ti)O 3-Pb(Sb,Mn)O 3 modified with the rare earth (RE) metal species Ce (1.03 Å), Eu (0.95 Å) and Yb (0.85 Å) have been investigated. For all rare earth substituents investigated in this system, regardless of the species ionic radii, the piezoelectric properties were observed to have combinatory hard and soft characteristics. Under high drive levels, the mechanical quality factor and the vibrational velocity were both significantly improved by RE substitution, resulting in a significant increase in ultrasonic power. Systematic polarization-electric field measurements revealed significant relaxational polarization similar to a soft piezoelectric, in addition to an internal field similar to a hard piezoelectric. A possible explanation for the combinatory "hardening" and "softening" effects is the coexistence of randomly quenched and mobile defects.

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