Internal oxidation of binary silver-sulphur alloys

Binary silver - sulphur alloys fulfill conditions for internal oxidation, F or the difference from sulphur oxides silver oxide(Ag2O) is not stable at t emperatures over 453 K and 1 atm, pressure of oxygen, Both, sulphur and oxy gen in small concentrations are soluble in silver. The solubility of sulphu r is higher then that of oxygen, but the diffusion rate of oxygen in silver is higher as compared to that of sulphur. Peculiarities of internal oxidat ion of silver - sulphur alloys come from their two - phase microstructures and gaseous products of the oxidation.