The evolution of the two-phase structure during oxidation and changes in the oxide dispersion during subsequent annealing of dilute silver-magnesium alloys are explained on the basis of particle coarsening. The two-phase system is unique because of the postulated existence of an equilibrium particle size that strongly influences the final oxide particle size, hardness, and lattice parameter of these materials. Experimental observations are discussed and analysed according to the theoretical concepts introduced and good agreement is found.
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