Bilayer samples of Ti/C and Fe/C have been ion beam mixed with 400-keV Xe ions to a dose of 1 x 10/sup 16/ ions/cm/sup 2/. Mixing experiments were performed at 77, 300, 573, and 723/sup 0/K. The transition between the temperature-independent and temperature-dependent mixing occurred between 300 and 573/sup 0/K in Fe/C samples and between 573 and 723/sup 0/K in Ti/C sample. In the temperature-independent mixing regime, mixing is reasonably well explained by a thermodynamic model of ion mixing while at higher temperatures a radiation enhanced diffusion mechanism is evident. 12 refs., 4 figs., 1 tab.
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Bilayer samples of Ti/C and Fe/C have been ion beam mixed with 400-keV Xe ions to a dose of 1 x 10/sup 16/ ions/cm/sup 2/. Mixing experiments were performed at 77, 300, 573, and 723/sup 0/K. The transition between the temperature-independent and temperature-dependent mixing occurred between 300 and 573/sup 0/K in Fe/C samples and between 573 and 723/sup 0/K in Ti/C sample. In the temperature-independent mixing regime, mixing is reasonably well explained by a thermodynamic model of ion mixing while at higher temperatures a radiation enhanced diffusion mechanism is evident. 12 refs., 4 figs., 1 tab.
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