Using the ultrasonic pulse echo overlap technique,we have measured the temperature dependence of the elastic constant C_(33) of LiKSO_(4) crystal.The abrupt change of C_(33) occurs at 60℃,and there is a large tempera...Using the ultrasonic pulse echo overlap technique,we have measured the temperature dependence of the elastic constant C_(33) of LiKSO_(4) crystal.The abrupt change of C_(33) occurs at 60℃,and there is a large temperature hysteresis.On repeated experiments,this abrupt peak of C_(33) reduces successively.But after a certain time of"seasoning",it appears again.展开更多
文摘Using the ultrasonic pulse echo overlap technique,we have measured the temperature dependence of the elastic constant C_(33) of LiKSO_(4) crystal.The abrupt change of C_(33) occurs at 60℃,and there is a large temperature hysteresis.On repeated experiments,this abrupt peak of C_(33) reduces successively.But after a certain time of"seasoning",it appears again.
