TY - JOUR
T1 - Investigations on the thermal and piezoelectric properties of fresnoite Ba2TiSi2O8 single crystals
AU - Shen, Chuanying
AU - Zhang, Huaijin
AU - Cong, Hengjiang
AU - Yu, Haohai
AU - Wang, Jiyang
AU - Zhang, Shujun
N1 - Funding Information:
We thank three anonymous referees for their constructive comments. This work is partially supported by the University of California Agricultural Experiment Station, Australian Research Council project (ARC) [10.13039/501100000923] (DP160102107), and the MCTI | Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) [10.13039/501100003593] (404158/2013-7).
PY - 2014/7/28
Y1 - 2014/7/28
N2 - Fresnoite crystals with the nominal composition Ba2TiSi 2O8 (BTS) were grown using the Czochralski technique. The full matrix material constants were determined based on the IEEE standards, with d31, d33, and d15 coefficients being on the order of 2.7, 4.0, and 17.5 pC/N, respectively. A positive sign of d 31 was confirmed using strain measurements and rotated crystal cuts, where a maximum d33* value of 9.1 pC/N was achieved for ZXl50° crystal cut. The dielectric, piezoelectric, and related thermal properties were investigated as a function of temperature, showing strong anisotropic behavior, inherently associated with its layered crystal structure. The temperature dependence of d15 and d33* revealed a variations of <6% over the temperature range of 20-700 °C. The good thermal stability, together with the high piezoelectric properties and electrical resistivity (>10 7Ω·cm at 600 °C), makes fresnoite BTS crystals promising candidates for high temperature sensing applications.
AB - Fresnoite crystals with the nominal composition Ba2TiSi 2O8 (BTS) were grown using the Czochralski technique. The full matrix material constants were determined based on the IEEE standards, with d31, d33, and d15 coefficients being on the order of 2.7, 4.0, and 17.5 pC/N, respectively. A positive sign of d 31 was confirmed using strain measurements and rotated crystal cuts, where a maximum d33* value of 9.1 pC/N was achieved for ZXl50° crystal cut. The dielectric, piezoelectric, and related thermal properties were investigated as a function of temperature, showing strong anisotropic behavior, inherently associated with its layered crystal structure. The temperature dependence of d15 and d33* revealed a variations of <6% over the temperature range of 20-700 °C. The good thermal stability, together with the high piezoelectric properties and electrical resistivity (>10 7Ω·cm at 600 °C), makes fresnoite BTS crystals promising candidates for high temperature sensing applications.
UR - http://www.scopus.com/inward/record.url?scp=84905817342&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84905817342&partnerID=8YFLogxK
U2 - 10.1063/1.4891827
DO - 10.1063/1.4891827
M3 - Article
AN - SCOPUS:84905817342
SN - 0021-8979
VL - 116
JO - Journal of Applied Physics
JF - Journal of Applied Physics
IS - 4
M1 - 044106
ER -