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Investigation of Ca3TaGa3Si2O14 piezoelectric crystals for high temperature sensors

Journal Article


Abstract


  • The dielectric and electromechanical properties of fully ordered Ca 3TaGa3Si2O14 (CTGS) crystals were investigated over the temperature range of -60∼700 C. The highest electromechanical coupling factor, k26 (18.9%) and piezoelectric coefficient, d26 (-11.5 pC/N) were obtained for (YXl)-25° cuts. The temperature dependent behavior of resonance frequency (fr) was investigated in single-rotated thickness shear mode (TSM) (YXl)θ cuts (θ-35°∼10°). The turnover temperatures of resonance frequency were found to increase from 20°C to 330°C, as the rotation angle varied from -22.5° to -35°. Bulk acoustic wave (BAW) resonators based on Y(-30) monolithic disks with a fundamental frequency ∼2.87 MHz were fabricated, where the in air mechanical quality factor Q was found to be on the order of 24000 and 10000 at 20°C and 700°C, respectively. The high coupling k26, high mechanical Q, and high electrical resistivity (16 Mcm) at 700°C, together with the near zero TCF characteristics at elevated temperatures, demonstrate the potential of CTGS crystals for high temperature sensor applications. © 2011 American Institute of Physics.

UOW Authors


  •   Yu, Fapeng (external author)
  •   Zhang, Shujun
  •   Zhao, Xian (external author)
  •   Yuan, Duorong (external author)
  •   Qin, Lifeng (external author)
  •   Wang, Qing Ming. (external author)
  •   Shrout, Thomas R. (external author)

Publication Date


  • 2011

Citation


  • Yu, F., Zhang, S., Zhao, X., Yuan, D., Qin, L., Wang, Q. & Shrout, T. R. (2011). Investigation of Ca3TaGa3Si2O14 piezoelectric crystals for high temperature sensors. Journal of Applied Physics, 109 (11), 114103-1-114103-6.

Scopus Eid


  • 2-s2.0-79959468727

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2024

Has Global Citation Frequency


Start Page


  • 114103-1

End Page


  • 114103-6

Volume


  • 109

Issue


  • 11

Place Of Publication


  • United States

Abstract


  • The dielectric and electromechanical properties of fully ordered Ca 3TaGa3Si2O14 (CTGS) crystals were investigated over the temperature range of -60∼700 C. The highest electromechanical coupling factor, k26 (18.9%) and piezoelectric coefficient, d26 (-11.5 pC/N) were obtained for (YXl)-25° cuts. The temperature dependent behavior of resonance frequency (fr) was investigated in single-rotated thickness shear mode (TSM) (YXl)θ cuts (θ-35°∼10°). The turnover temperatures of resonance frequency were found to increase from 20°C to 330°C, as the rotation angle varied from -22.5° to -35°. Bulk acoustic wave (BAW) resonators based on Y(-30) monolithic disks with a fundamental frequency ∼2.87 MHz were fabricated, where the in air mechanical quality factor Q was found to be on the order of 24000 and 10000 at 20°C and 700°C, respectively. The high coupling k26, high mechanical Q, and high electrical resistivity (16 Mcm) at 700°C, together with the near zero TCF characteristics at elevated temperatures, demonstrate the potential of CTGS crystals for high temperature sensor applications. © 2011 American Institute of Physics.

UOW Authors


  •   Yu, Fapeng (external author)
  •   Zhang, Shujun
  •   Zhao, Xian (external author)
  •   Yuan, Duorong (external author)
  •   Qin, Lifeng (external author)
  •   Wang, Qing Ming. (external author)
  •   Shrout, Thomas R. (external author)

Publication Date


  • 2011

Citation


  • Yu, F., Zhang, S., Zhao, X., Yuan, D., Qin, L., Wang, Q. & Shrout, T. R. (2011). Investigation of Ca3TaGa3Si2O14 piezoelectric crystals for high temperature sensors. Journal of Applied Physics, 109 (11), 114103-1-114103-6.

Scopus Eid


  • 2-s2.0-79959468727

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2024

Has Global Citation Frequency


Start Page


  • 114103-1

End Page


  • 114103-6

Volume


  • 109

Issue


  • 11

Place Of Publication


  • United States