Acoustic Attenuation Spectra of Metaphosphate Ion Conductive Glasses

Abstract

The paper deals with analysing of ultrasonic measurements realised at a constant frequency 13 MHz and the temperature above 300 K – acoustic attenuation of metaphosphate ion conductive glasses. Attenuation measurements have revealed that relaxation peaks from experimental studies of glasses are much broader than those from a Debye process. So, for description of loss peak and distribution of relaxation time, which varies with activation energies were used Double Power Law (DPL) and Gaussian functions. From both of the approaches were estimated the value of activation energies of relaxation processes, which are comparable.