Ion Beam Induced Ni-Ag Mixing
Ion-induced mixing is a complex phenomenon where many processes are involved: collisional effects, vacancy-atom transport correlation effects, surface segregation, preferential sputtering and chemical effects. Here we describe some experiments on Ni-Ag ion beam mixing, taken from the literature, which give information concerning the relevant mechanisms involved. To this purpose we discuss also a model for describing the mixing process where the vacancy-atom transport correlation effects play a major role in the dynamics of the mixing process. Finally we present some new experimental results which confirm at least qualitatively the model.
KeywordsCoupling Coefficient Silver Atom Collisional Effect Sputter Time Concentration Depth Profile
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