Enhanced Ionic Conduction in AgCl‐Al ₂ O ₃ Composites Induced by Plastic Deformation

Composites of AgCl and A1 2 O 3 were prepared by impregnating an alumina fiber paper with molten AgCl. The as‐prepared composites showed no enhancement in the conductivity compared with pure AgCl samples prepared in a similar manner. When plastically deformed, the conductivity of both the pure and composite materials increased. After annealing at high temperatures, the conductivity of the pure AgCl sample decreased to the as‐prepared value, whereas the composite maintained a 2‐ to 5‐fold enhanced conductivity. This enhanced conductivity is due to deformation‐induced defects which are stabilized by the alumina fibers rather than due to the AgCl/AI 2 O 3 interface.