Solid-state anodization of aluminum on silver metaphosphate glass

dc Biasing with a pulse train enabled us to follow the process of solid-state anodization of aluminum on silver metaphosphate glass, a silver-ion conductor. Anodization induced formation of a dielectric oxide in which the capacitance (around 10−7 F/cm2) decreased with increasing bias field, caused by an increase in oxide thickness. The oxide formed would not be the genuine alumina but contains phosphorus (and possibly silver).