Ultrasonic study of (1-x-y)(B2O3)-x(Li2O)-y(MCl2), (M=Cd, Zn) glasses

(1-x-y)(B2O3)-x(Li2O)-y(MCl2), (M=Cd,Zn) glasses of different compositions were prepared. The ultrasonic velocities (both longitudinal and transverse) were measured at 5 MHz at room temperature using the pulse echo overlap method. Various parameters, viz., elastic constants, acoustic impedance and Poisson’s ratio were evaluated. The variations in these parameters are analyzed in terms of the structural changes of the glasses with composition.