TY - GEN
T1 - Temperature dependence of electro-elastic properties of yttrium calcium oxyborate single crystlals
AU - Yu, Fa Peng
AU - Duan, Xiu Lan
AU - Zhang, Shu Jun
AU - Yu, Yong Gui
AU - Ma, Ting Feng
AU - Zhao, Xian
PY - 2012/12/1
Y1 - 2012/12/1
N2 - High temperature piezoelectric crystals, YCa4O(BO 3)3 (YCOB) possess relatively high piezoelectric activities (deff = ∼7.8pC/N, keff= ∼19%) and no phase transition prior to the melting point (∼1500°C), indicating the potential use for high temperature sensing. In this work, growth of YCOB single crystals by using Czochralski (Cz) method was introduced and the temperature dependence of electro-elastic properties was investigated from 20 to 950°C, where the resonance frequencies relating to elastic compliances sE33 and sE55, were found to shift linearly with increasing temperature, with relatively large first order temperature coefficient being on the order of ∼94ppm/°C. Of particular significance is that the lateral mode of (XY) and (XZ) crystal cuts were found not only possess relatively high electromechanical coupling factor (k eff= ∼15%) and piezoelectric coefficient (deff = ∼4 pC/N), but also the temperature independence of electromechanical properties, demonstrating YCOB a good candidate for high temperature piezoelectric sensing.
AB - High temperature piezoelectric crystals, YCa4O(BO 3)3 (YCOB) possess relatively high piezoelectric activities (deff = ∼7.8pC/N, keff= ∼19%) and no phase transition prior to the melting point (∼1500°C), indicating the potential use for high temperature sensing. In this work, growth of YCOB single crystals by using Czochralski (Cz) method was introduced and the temperature dependence of electro-elastic properties was investigated from 20 to 950°C, where the resonance frequencies relating to elastic compliances sE33 and sE55, were found to shift linearly with increasing temperature, with relatively large first order temperature coefficient being on the order of ∼94ppm/°C. Of particular significance is that the lateral mode of (XY) and (XZ) crystal cuts were found not only possess relatively high electromechanical coupling factor (k eff= ∼15%) and piezoelectric coefficient (deff = ∼4 pC/N), but also the temperature independence of electromechanical properties, demonstrating YCOB a good candidate for high temperature piezoelectric sensing.
UR - https://www.scopus.com/pages/publications/84874621731
UR - https://www.scopus.com/pages/publications/84874621731#tab=citedBy
U2 - 10.1109/SPAWDA.2012.6464092
DO - 10.1109/SPAWDA.2012.6464092
M3 - Conference contribution
AN - SCOPUS:84874621731
SN - 9781467348164
T3 - Proceedings of the 2012 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2012
SP - 293
EP - 297
BT - Proceedings of the 2012 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2012
T2 - 2012 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2012
Y2 - 23 November 2012 through 25 November 2012
ER -