Dielectric, elastic and piezoelectric properties of SrLaGa3O7 and BaLaGa3O7 crystals with Melilite structure

Chuanying Shen; Yuanyuan Zhang; Haohai Yu; Shujun Zhang; Wenwu Cao; Jiyang Wang; Huaijin Zhang

doi:10.1016/j.jallcom.2015.05.219

Dielectric, elastic and piezoelectric properties of SrLaGa₃O₇ and BaLaGa₃O₇ crystals with Melilite structure

Chuanying Shen, Yuanyuan Zhang, Haohai Yu, Shujun Zhang, Wenwu Cao, Jiyang Wang, Huaijin Zhang

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

21 Scopus citations

Abstract

Abstract A full matrix of electromechanical properties of Melilite SrLaGa₃O₇ and BaLaGa₃O₇ crystals was evaluated by the impedance method, with minimal variations being observed for the two crystals. The ε11T/^ε0, d₁₄ and k₁₄ were determined to be 13.6, 9.4-9.5 pC/N and 17.1-17.4%, respectively. The relationship between electromechanical properties and microstructures was established to explain the elastic relationship, and piezoelectric origin. The optimized electromechanical properties were investigated in double rotated coordinate. The high resistivity (∼10⁸ Ohm·cm), high thermal stability of elastic constants (with variations of <10%) and piezoelectric properties (with minimal variation of 8%) over the temperature range of 25-500°C, making SrLaGa₃O₇ an attractive candidate for sensing applications at elevated temperatures.

Original language	English (US)
Article number	34403
Pages (from-to)	1069-1074
Number of pages	6
Journal	Journal of Alloys and Compounds
Volume	647
DOIs	https://doi.org/10.1016/j.jallcom.2015.05.219
State	Published - Jul 8 2015

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2015.05.219

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title = "Dielectric, elastic and piezoelectric properties of SrLaGa3O7 and BaLaGa3O7 crystals with Melilite structure",

abstract = "Abstract A full matrix of electromechanical properties of Melilite SrLaGa3O7 and BaLaGa3O7 crystals was evaluated by the impedance method, with minimal variations being observed for the two crystals. The ε11T/ε0, d14 and k14 were determined to be 13.6, 9.4-9.5 pC/N and 17.1-17.4%, respectively. The relationship between electromechanical properties and microstructures was established to explain the elastic relationship, and piezoelectric origin. The optimized electromechanical properties were investigated in double rotated coordinate. The high resistivity (∼108 Ohm·cm), high thermal stability of elastic constants (with variations of <10%) and piezoelectric properties (with minimal variation of 8%) over the temperature range of 25-500°C, making SrLaGa3O7 an attractive candidate for sensing applications at elevated temperatures.",

author = "Chuanying Shen and Yuanyuan Zhang and Haohai Yu and Shujun Zhang and Wenwu Cao and Jiyang Wang and Huaijin Zhang",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier B.V.",

year = "2015",

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day = "8",

doi = "10.1016/j.jallcom.2015.05.219",

language = "English (US)",

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pages = "1069--1074",

journal = "Journal of Alloys and Compounds",

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TY - JOUR

T1 - Dielectric, elastic and piezoelectric properties of SrLaGa3O7 and BaLaGa3O7 crystals with Melilite structure

AU - Shen, Chuanying

AU - Zhang, Yuanyuan

AU - Yu, Haohai

AU - Zhang, Shujun

AU - Cao, Wenwu

AU - Wang, Jiyang

AU - Zhang, Huaijin

PY - 2015/7/8

Y1 - 2015/7/8

N2 - Abstract A full matrix of electromechanical properties of Melilite SrLaGa3O7 and BaLaGa3O7 crystals was evaluated by the impedance method, with minimal variations being observed for the two crystals. The ε11T/ε0, d14 and k14 were determined to be 13.6, 9.4-9.5 pC/N and 17.1-17.4%, respectively. The relationship between electromechanical properties and microstructures was established to explain the elastic relationship, and piezoelectric origin. The optimized electromechanical properties were investigated in double rotated coordinate. The high resistivity (∼108 Ohm·cm), high thermal stability of elastic constants (with variations of <10%) and piezoelectric properties (with minimal variation of 8%) over the temperature range of 25-500°C, making SrLaGa3O7 an attractive candidate for sensing applications at elevated temperatures.

AB - Abstract A full matrix of electromechanical properties of Melilite SrLaGa3O7 and BaLaGa3O7 crystals was evaluated by the impedance method, with minimal variations being observed for the two crystals. The ε11T/ε0, d14 and k14 were determined to be 13.6, 9.4-9.5 pC/N and 17.1-17.4%, respectively. The relationship between electromechanical properties and microstructures was established to explain the elastic relationship, and piezoelectric origin. The optimized electromechanical properties were investigated in double rotated coordinate. The high resistivity (∼108 Ohm·cm), high thermal stability of elastic constants (with variations of <10%) and piezoelectric properties (with minimal variation of 8%) over the temperature range of 25-500°C, making SrLaGa3O7 an attractive candidate for sensing applications at elevated temperatures.

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U2 - 10.1016/j.jallcom.2015.05.219

DO - 10.1016/j.jallcom.2015.05.219

M3 - Article

AN - SCOPUS:84936818137

SN - 0925-8388

VL - 647

SP - 1069

EP - 1074

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

M1 - 34403

ER -

Dielectric, elastic and piezoelectric properties of SrLaGa₃O₇ and BaLaGa₃O₇ crystals with Melilite structure

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