Phase coexistence and large piezoelectricity in BaTiO3-CaSnO3lead-free ceramics

Yang Yang; Yibei Zhou; Juan Ren; Qiaoji Zheng; Kwok Ho Lam; Dunmin Lin

doi:10.1111/jace.15416

Phase coexistence and large piezoelectricity in BaTiO₃-CaSnO₃lead-free ceramics

Yang Yang, Yibei Zhou, Juan Ren, Qiaoji Zheng, Kwok Ho Lam, Dunmin Lin

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

37 Citations (Scopus)

Abstract

Ferroelectric phase coexistence was constructed in (1−x)BaTiO ₃-xCaSnO ₃ lead-free ceramics, and its relationship with the piezoelectricity of the materials was investigated to ascertain potential factors for strong piezoelectric response. It is found that the addition of CaSnO ₃ caused a series of phase transitions in the (1−x)BaTiO ₃-xCaSnO ₃ ceramics, and a ferroelectric coexistence of rhombohedral, orthorhombic, and tetragonal phases is formed at x = 0.08, where the ceramics exhibit the lowest energy barrier and consequently facilitate the polarization rotation and extension, resulting in the optimal piezoelectricity of d ₃₃ and k _p values of 550 pC/N and 0.60, respectively. Our study provides an intuitive insight to understand the origin of high piezoelectricity in the ceramics with the coexistence of multiferroelectric phases.

Original language	English
Pages (from-to)	2594-2605
Number of pages	12
Journal	Journal of the American Ceramic Society
Volume	101
Issue number	6
DOIs	https://doi.org/10.1111/jace.15416
Publication status	Published - 1 Jun 2018

Keywords

barium titanate
lead-free ceramics
perovskites
phase transition
piezoelectric materials/properties

ASJC Scopus subject areas

Ceramics and Composites
Geology
Geochemistry and Petrology
Materials Chemistry

More information

10.1111/jace.15416

Cite this

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title = "Phase coexistence and large piezoelectricity in BaTiO3-CaSnO3lead-free ceramics",

abstract = "Ferroelectric phase coexistence was constructed in (1−x)BaTiO 3-xCaSnO 3 lead-free ceramics, and its relationship with the piezoelectricity of the materials was investigated to ascertain potential factors for strong piezoelectric response. It is found that the addition of CaSnO 3 caused a series of phase transitions in the (1−x)BaTiO 3-xCaSnO 3 ceramics, and a ferroelectric coexistence of rhombohedral, orthorhombic, and tetragonal phases is formed at x = 0.08, where the ceramics exhibit the lowest energy barrier and consequently facilitate the polarization rotation and extension, resulting in the optimal piezoelectricity of d 33 and k p values of 550 pC/N and 0.60, respectively. Our study provides an intuitive insight to understand the origin of high piezoelectricity in the ceramics with the coexistence of multiferroelectric phases. ",

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AU - Yang, Yang

AU - Zhou, Yibei

AU - Ren, Juan

AU - Zheng, Qiaoji

AU - Lam, Kwok Ho

AU - Lin, Dunmin

PY - 2018/6/1

Y1 - 2018/6/1

N2 - Ferroelectric phase coexistence was constructed in (1−x)BaTiO 3-xCaSnO 3 lead-free ceramics, and its relationship with the piezoelectricity of the materials was investigated to ascertain potential factors for strong piezoelectric response. It is found that the addition of CaSnO 3 caused a series of phase transitions in the (1−x)BaTiO 3-xCaSnO 3 ceramics, and a ferroelectric coexistence of rhombohedral, orthorhombic, and tetragonal phases is formed at x = 0.08, where the ceramics exhibit the lowest energy barrier and consequently facilitate the polarization rotation and extension, resulting in the optimal piezoelectricity of d 33 and k p values of 550 pC/N and 0.60, respectively. Our study provides an intuitive insight to understand the origin of high piezoelectricity in the ceramics with the coexistence of multiferroelectric phases.

AB - Ferroelectric phase coexistence was constructed in (1−x)BaTiO 3-xCaSnO 3 lead-free ceramics, and its relationship with the piezoelectricity of the materials was investigated to ascertain potential factors for strong piezoelectric response. It is found that the addition of CaSnO 3 caused a series of phase transitions in the (1−x)BaTiO 3-xCaSnO 3 ceramics, and a ferroelectric coexistence of rhombohedral, orthorhombic, and tetragonal phases is formed at x = 0.08, where the ceramics exhibit the lowest energy barrier and consequently facilitate the polarization rotation and extension, resulting in the optimal piezoelectricity of d 33 and k p values of 550 pC/N and 0.60, respectively. Our study provides an intuitive insight to understand the origin of high piezoelectricity in the ceramics with the coexistence of multiferroelectric phases.

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