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: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

23 Citations (Scopus)

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. © 2015 Elsevier B.V.

Original language	English
Article number	34403
Pages (from-to)	1069-1074
Journal	Journal of Alloys and Compounds
Volume	647
DOIs	https://doi.org/10.1016/j.jallcom.2015.05.219
Publication status	Published - 8 Jul 2015
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Funding

The authors would like to thank Professor Thomas R. Shrout for his helpful discussion. The authors from Shandong University acknowledged the National Natural Science Foundation of China (Grant No. 51372139). The author Y. Zhang acknowledged the National Natural Science Foundation of China (Grant No. 51302158).

Research Keywords

Electromechanical properties
Elevated temperature
Melilite crystal
Sensing applications

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@article{215aba86988343bd98b7c08a257148b7,

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. {\textcopyright} 2015 Elsevier B.V.",

keywords = "Electromechanical properties, Elevated temperature, Melilite crystal, Sensing applications",

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

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].",

year = "2015",

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

language = "English",

volume = "647",

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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

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

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. © 2015 Elsevier B.V.

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. © 2015 Elsevier B.V.

KW - Electromechanical properties

KW - Elevated temperature

KW - Melilite crystal

KW - Sensing applications

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U2 - 10.1016/j.jallcom.2015.05.219

DO - 10.1016/j.jallcom.2015.05.219

M3 - RGC 21 - Publication in refereed journal

SN - 0925-8388

VL - 647

SP - 1069

EP - 1074

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

M1 - 34403

ER -