【摘 要】
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Background,Motivation and Objective Recently,piezoelectric Ca3TaGa3Si2O14(CTGS) crystal has drawn much research interest as a promising candidate for the high-temperature sensing applications.The elas
【机 构】
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University of Pittsburgh,USA Shanghai Institute o
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Background,Motivation and Objective Recently,piezoelectric Ca3TaGa3Si2O14(CTGS) crystal has drawn much research interest as a promising candidate for the high-temperature sensing applications.The elastic coefficients and their temperature dependence are critical for the design and fabrication of acoustic wave sensors.Among the techniques used for the characterization of the elastic coefficients,resonant ultrasound spectroscopy(RUS) has been widely recognized.However,the RUS method is not perfectly applicable under high temperatures and harsh conditions.As an improvement for RUS,antenna transmission acoustic resonance(ATAR) method provide better approach to overcome the measurement difficulty as high-temperatures.In this work,ATAR method is employed to determine the elastic constants of CTGS up to 800℃.
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