Ionically conducting glasses in the system, 2AgI-Ag2O-2(0.95B2O3,0.05SiO2), were prepared by melting in a microwave oven (5GHz, 900W). The homogeneity of the quenched glasses was equal to, or better than, that of glasses obtained by conventional melting at 730C. The microwave-melted glasses were reddish, while glasses of the same composition which were melted in a conventional furnace tended towards yellow. These colours could be switched by using microwave and conventional re-melting. This behavior was attributed to structural changes and/or changes in Ag+ mobility. The latter were suggested by solid-state nuclear magnetic resonance data.

D.J.Duval, B.L.Phillips, M.J.E.Terjak, S.H.Risbud: Journal of Solid State Chemistry, 1997, 131[1], 173-6