TY - GEN
T1 - Piezoelectric cross-talk investigation of LGT and CTGS single crystlals
AU - Yu, Fa Peng
AU - Hou, Shuai
AU - Zhang, Shujun
AU - Ma, Ting Feng
AU - Zhao, Xian
PY - 2013
Y1 - 2013
N2 - Among langasite type crystals, La3Ga5.5Ta 0.5O14 (LGT) and Ca3TaGa3Si 2O14 (CTGS) possess relatively high resistivity (>106μcm@600°C) and high effective piezoelectric coefficient (6-8 pC/N) at elevated temperatures, exhibited the potential use for high temperature sensing. In this work, the maximum piezoelectric coefficients and piezoelectric cross-talk behaviors for LGT and CTGS crystals are investigated, where the maximum piezoelectric d11, d14 and d26 for LGT crystals are obtained to be on the order of 7.2, 9.7 and 14.7 pC/N, respectively, while for CTGS crystals, the maximum d11, d14 and d26 are found to be 4.6, 12.2, and 11.4 pC/N, respectively. Of particular significance is that the optimum crystal cuts free of cross-talk were obtained from LGT and CTGS crystals, with effective piezoelectric coefficients being on the order of 14-15 pC/N and 8-11 pC/N, respectively, attractive for high temperature piezoelectric applications.
AB - Among langasite type crystals, La3Ga5.5Ta 0.5O14 (LGT) and Ca3TaGa3Si 2O14 (CTGS) possess relatively high resistivity (>106μcm@600°C) and high effective piezoelectric coefficient (6-8 pC/N) at elevated temperatures, exhibited the potential use for high temperature sensing. In this work, the maximum piezoelectric coefficients and piezoelectric cross-talk behaviors for LGT and CTGS crystals are investigated, where the maximum piezoelectric d11, d14 and d26 for LGT crystals are obtained to be on the order of 7.2, 9.7 and 14.7 pC/N, respectively, while for CTGS crystals, the maximum d11, d14 and d26 are found to be 4.6, 12.2, and 11.4 pC/N, respectively. Of particular significance is that the optimum crystal cuts free of cross-talk were obtained from LGT and CTGS crystals, with effective piezoelectric coefficients being on the order of 14-15 pC/N and 8-11 pC/N, respectively, attractive for high temperature piezoelectric applications.
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U2 - 10.1109/SPAWDA.2013.6841085
DO - 10.1109/SPAWDA.2013.6841085
M3 - Conference contribution
AN - SCOPUS:84904597575
SN - 9781479932894
T3 - Proceedings of the 2013 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2013
BT - Proceedings of the 2013 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2013
PB - IEEE Computer Society
T2 - 2013 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2013
Y2 - 25 October 2013 through 27 October 2013
ER -