Mechanical Loss and Conduction Mechanism in Iron‐Phosphate Glass

Abstract

Mechanical loss measurements were made on an iron‐phosphate glass ( on a mole basis). The activation energy (0.59 ev) determined from the mechanical‐loss data compared favorably with those (0.55–0.57 ev) obtained from dielectric‐loss and d‐c conductivity data on a similar glass. The correlation of these results is consistent with a “hopping“ model for electrical conduction in iron‐phosphate glasses.