Temperature dependence of electro-elastic properties of yttrium calcium oxyborate single crystlals

Fa Peng Yu, Xiu Lan Duan, Shu Jun Zhang, Yong Gui Yu, Ting Feng Ma, Xian Zhao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

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.

Original languageEnglish (US)
Title of host publicationProceedings of the 2012 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2012
Pages293-297
Number of pages5
DOIs
StatePublished - Dec 1 2012
Event2012 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2012 - Shanghai, China
Duration: Nov 23 2012Nov 25 2012

Publication series

NameProceedings of the 2012 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2012

Other

Other2012 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2012
CountryChina
CityShanghai
Period11/23/1211/25/12

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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