A study on silver deposition in silver fast ion glass by kinetics equation of deposition

Silver deposition in AgI-Ag_4P_2O_7, AgI-Ag_2O-B_2O_3 and AgI-Ag_2O-P_2O_5-B_2O_3 was studied by using EPMA and a kinetic equation of deposition. It was found that the kinetics equation can fit well the time dependence of the silver counts during electron bombardment. The Processes of the silver deposition were explained: Under the Co-action of the external electric field caused by the electron beams and the internal field with consistency difference of ions and local polarization in the samples, the silver ions deposited gradually until a saturation limit was attained.