Complete set of material constants of 0.95(Na0.5Bi 0.5)TiO3-0.05BaTiO3 lead-free piezoelectric single crystal and the delineation of extrinsic contributions

Limei Zheng; Xiujie Yi; Shantao Zhang; Wenhua Jiang; Bin Yang; Rui Zhang; Wenwu Cao

doi:10.1063/1.4821853

Complete set of material constants of 0.95(Na_0.5Bi _0.5)TiO₃-0.05BaTiO₃ lead-free piezoelectric single crystal and the delineation of extrinsic contributions

Limei Zheng, Xiujie Yi, Shantao Zhang, Wenhua Jiang, Bin Yang, Rui Zhang, Wenwu Cao

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

61 Scopus citations

Abstract

Lead-free piezoelectric single crystal 0.95(Na_0.5Bi _0.5)TiO₃ (NBT)-0.05BaTiO₃ was grown by top-seeded solution growth method, which has rhombohedral symmetry with composition near morphotropic phase boundary. Full set of dielectric, piezoelectric, and elastic constants for [001]_c poled domain-engineered single crystal was determined. Excellent electromechanical properties and low dielectric loss (d₃₃ = 360 pC/N, d₃₁ = -113 pC/N, d₁₅ = 162 pC/N, k₃₃ = 0.720, k_t = 0.540, and tan δ = 1.1%) make it a good candidate to replace lead-based piezoelectric materials. The depolarization temperature (T_d = 135 °C) is the highest among all NBT-based materials and its electromechanical coupling properties are very stable below T_d. Extrinsic contributions to piezoelectric properties were investigated by Rayleigh analysis.

Original language	English (US)
Article number	122905
Journal	Applied Physics Letters
Volume	103
Issue number	12
DOIs	https://doi.org/10.1063/1.4821853
State	Published - Sep 16 2013

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.4821853

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title = "Complete set of material constants of 0.95(Na0.5Bi 0.5)TiO3-0.05BaTiO3 lead-free piezoelectric single crystal and the delineation of extrinsic contributions",

abstract = "Lead-free piezoelectric single crystal 0.95(Na0.5Bi 0.5)TiO3 (NBT)-0.05BaTiO3 was grown by top-seeded solution growth method, which has rhombohedral symmetry with composition near morphotropic phase boundary. Full set of dielectric, piezoelectric, and elastic constants for [001]c poled domain-engineered single crystal was determined. Excellent electromechanical properties and low dielectric loss (d33 = 360 pC/N, d31 = -113 pC/N, d15 = 162 pC/N, k33 = 0.720, kt = 0.540, and tan δ = 1.1%) make it a good candidate to replace lead-based piezoelectric materials. The depolarization temperature (Td = 135 °C) is the highest among all NBT-based materials and its electromechanical coupling properties are very stable below Td. Extrinsic contributions to piezoelectric properties were investigated by Rayleigh analysis.",

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Complete set of material constants of 0.95(Na_0.5Bi _0.5)TiO₃-0.05BaTiO₃ lead-free piezoelectric single crystal and the delineation of extrinsic contributions. / Zheng, Limei; Yi, Xiujie; Zhang, Shantao; Jiang, Wenhua; Yang, Bin; Zhang, Rui; Cao, Wenwu.

In: Applied Physics Letters, Vol. 103, No. 12, 122905, 16.09.2013.

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

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AU - Zhang, Shantao

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AU - Zhang, Rui

AU - Cao, Wenwu

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