Composition- And temperature-dependent large strain in (1 - x) (0.8Bi0.5Na0.5TiO3-0.2Bi0.5K0.5TiO3)- x NaNbO3 ceramics

Guangzhi Dong; Huiqing Fan; Jing Shi; Mengmeng Li

doi:10.1111/jace.13407

Composition- And temperature-dependent large strain in (1 - x) (0.8Bi0.5Na0.5TiO3-0.2Bi0.5K0.5TiO3)- x NaNbO3 ceramics

Guangzhi Dong, Huiqing Fan, Jing Shi, Mengmeng Li

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

135 Scopus citations

Abstract

Ternary solid solutions of (1 - x)(0.8Bi_0.5Na_0.5TiO₃- 0.2Bi_0.5K_0.5TiO₃)- xNaNbO₃ (BNKT-xNN) lead-free piezoceramics were fabricated using a conventional solid-state reaction method. Pure BNKT composition exhibited an electric-field-induced irreversible structural transition from pseudocubic to ferroelectric rhombohedral phase at room temperature. Accompanied with the ferroelectric-to-relaxor temperature T_F-Rshifted down below room temperature as the substitution of NN, a compositionally induced nonergodic-to-ergodic relaxor transition was presented, which featured the pinched-shape polarization and sprout-shape strain hysteresis loops. A strain value of ∼0.445% (under a driving field of 55 kV/cm) with large normalized strain of ∼810 pm/V was obtained for the composition of BNKT-0.04NN, and the large strain was attributed to the reversible electric-field-induced transition between ergodic relaxor and ferroelectric phase.

Original language	English
Pages (from-to)	1150-1155
Number of pages	6
Journal	Journal of the American Ceramic Society
Volume	98
Issue number	4
DOIs	https://doi.org/10.1111/jace.13407
State	Published - Apr 2015

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title = "Composition- And temperature-dependent large strain in (1 - x) (0.8Bi0.5Na0.5TiO3-0.2Bi0.5K0.5TiO3)- x NaNbO3 ceramics",

abstract = "Ternary solid solutions of (1 - x)(0.8Bi0.5Na0.5TiO3- 0.2Bi0.5K0.5TiO3)- xNaNbO3 (BNKT-xNN) lead-free piezoceramics were fabricated using a conventional solid-state reaction method. Pure BNKT composition exhibited an electric-field-induced irreversible structural transition from pseudocubic to ferroelectric rhombohedral phase at room temperature. Accompanied with the ferroelectric-to-relaxor temperature TF-Rshifted down below room temperature as the substitution of NN, a compositionally induced nonergodic-to-ergodic relaxor transition was presented, which featured the pinched-shape polarization and sprout-shape strain hysteresis loops. A strain value of ∼0.445% (under a driving field of 55 kV/cm) with large normalized strain of ∼810 pm/V was obtained for the composition of BNKT-0.04NN, and the large strain was attributed to the reversible electric-field-induced transition between ergodic relaxor and ferroelectric phase.",

author = "Guangzhi Dong and Huiqing Fan and Jing Shi and Mengmeng Li",

note = "Publisher Copyright: {\textcopyright} 2014 The American Ceramic Society.",

year = "2015",

month = apr,

doi = "10.1111/jace.13407",

language = "英语",

volume = "98",

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T1 - Composition- And temperature-dependent large strain in (1 - x) (0.8Bi0.5Na0.5TiO3-0.2Bi0.5K0.5TiO3)- x NaNbO3 ceramics

AU - Dong, Guangzhi

AU - Fan, Huiqing

AU - Shi, Jing

AU - Li, Mengmeng

PY - 2015/4

Y1 - 2015/4

N2 - Ternary solid solutions of (1 - x)(0.8Bi0.5Na0.5TiO3- 0.2Bi0.5K0.5TiO3)- xNaNbO3 (BNKT-xNN) lead-free piezoceramics were fabricated using a conventional solid-state reaction method. Pure BNKT composition exhibited an electric-field-induced irreversible structural transition from pseudocubic to ferroelectric rhombohedral phase at room temperature. Accompanied with the ferroelectric-to-relaxor temperature TF-Rshifted down below room temperature as the substitution of NN, a compositionally induced nonergodic-to-ergodic relaxor transition was presented, which featured the pinched-shape polarization and sprout-shape strain hysteresis loops. A strain value of ∼0.445% (under a driving field of 55 kV/cm) with large normalized strain of ∼810 pm/V was obtained for the composition of BNKT-0.04NN, and the large strain was attributed to the reversible electric-field-induced transition between ergodic relaxor and ferroelectric phase.

AB - Ternary solid solutions of (1 - x)(0.8Bi0.5Na0.5TiO3- 0.2Bi0.5K0.5TiO3)- xNaNbO3 (BNKT-xNN) lead-free piezoceramics were fabricated using a conventional solid-state reaction method. Pure BNKT composition exhibited an electric-field-induced irreversible structural transition from pseudocubic to ferroelectric rhombohedral phase at room temperature. Accompanied with the ferroelectric-to-relaxor temperature TF-Rshifted down below room temperature as the substitution of NN, a compositionally induced nonergodic-to-ergodic relaxor transition was presented, which featured the pinched-shape polarization and sprout-shape strain hysteresis loops. A strain value of ∼0.445% (under a driving field of 55 kV/cm) with large normalized strain of ∼810 pm/V was obtained for the composition of BNKT-0.04NN, and the large strain was attributed to the reversible electric-field-induced transition between ergodic relaxor and ferroelectric phase.

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DO - 10.1111/jace.13407

M3 - 文章

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SN - 0002-7820

VL - 98

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EP - 1155

JO - Journal of the American Ceramic Society

JF - Journal of the American Ceramic Society

IS - 4

ER -

Composition- And temperature-dependent large strain in (1 - x) (0.8Bi0.5Na0.5TiO3-0.2Bi0.5K0.5TiO3)- x NaNbO3 ceramics

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