Title

Properties of piezoelectric single crystals Ca3TaGa3Si2O14 at high temperature and high vacuum conditions

RIS ID

106500

Publication Details

Zu, H., Wu, H., Wang, Y., Wang, Q. Ming., Zhang, S. & Shrout, T. R. (2013). Properties of piezoelectric single crystals Ca3TaGa3Si2O14 at high temperature and high vacuum conditions. 2013 Joint European Frequency and Time Forum and International Frequency Control Symposium, EFTF/IFC 2013 (pp. 988-991). United States: Institute of Electrical and Electronics Engineers.

Abstract

In this paper, a kind of fully ordered langasite family crystals Ca 3TaGa3Si2O14 (CTGS) were grown by the Czochralski pulling method and cut into lateral mode. The dielectric, elastic and piezoelectric properties of them were investigated as functions of temperature (up to 1073.15 K) and pressure (up to E-7 torr). It was found that all the crystals exhibited pressure stability properties and temperature dependent characteristics. According to the calculation, the dielectric permittivity, elastic coefficient and piezoelectric coefficient were about 17.66, 9.06 pm2/N and 3.77 pC/N, respectively. The good properties make CTGS promising candidates for sensing applications at high temperature and high vacuum conditions. 2013 IEEE.

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Link to publisher version (DOI)

http://dx.doi.org/10.1109/EFTF-IFC.2013.6702303