TY - JOUR
T1 - Orientation and temperature dependence of piezoelectric properties for sillenite-type Bi12TiO20 and Bi12SiO20 single crystals
AU - Shen, Chuanying
AU - Zhang, Huaijin
AU - Zhang, Yuanyuan
AU - Xu, Honghao
AU - Yu, Haohai
AU - Wang, Jiyang
AU - Zhang, Shujun
PY - 2014/6/20
Y1 - 2014/6/20
N2 - The full matrix of electro-elastic constants of sillenite-type crystals Bi12TiO20 (BTO) and Bi12SiO20 (BSO) were determined by the resonance method, with d14 and k14 being on the order of 40-48 pC/N and 31%-36%, respectively. In addition, double-rotated orientation dependence of d33 was investigated, with the maximum values of 25-28 pC/N being achieved in ZXtl45°/54°-cut samples. The electrical resistivity of BSO was found to be two orders higher than that of BTO, being on the order of 7 × 105 Ω cm at 500 °C. The temperature dependence of dielectric and piezoelectric properties were investigated. BSO exhibited a high thermal stability in the temperature range of 25-500 °C, while BTO showed a variation of ~3% in the range of 25-350 °C. The high values of d14 and k14, together with the good thermal stability, make BTO and BSO crystals potential candidates for electromechanical applications in medium temperature range.
AB - The full matrix of electro-elastic constants of sillenite-type crystals Bi12TiO20 (BTO) and Bi12SiO20 (BSO) were determined by the resonance method, with d14 and k14 being on the order of 40-48 pC/N and 31%-36%, respectively. In addition, double-rotated orientation dependence of d33 was investigated, with the maximum values of 25-28 pC/N being achieved in ZXtl45°/54°-cut samples. The electrical resistivity of BSO was found to be two orders higher than that of BTO, being on the order of 7 × 105 Ω cm at 500 °C. The temperature dependence of dielectric and piezoelectric properties were investigated. BSO exhibited a high thermal stability in the temperature range of 25-500 °C, while BTO showed a variation of ~3% in the range of 25-350 °C. The high values of d14 and k14, together with the good thermal stability, make BTO and BSO crystals potential candidates for electromechanical applications in medium temperature range.
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U2 - 10.3390/cryst4020141
DO - 10.3390/cryst4020141
M3 - Article
AN - SCOPUS:84902982757
SN - 2073-4352
VL - 4
SP - 141
EP - 151
JO - Crystals
JF - Crystals
IS - 2
ER -