Digitale Medien
[S.l.]
:
American Institute of Physics (AIP)
Journal of Applied Physics
74 (1993), S. 1707-1715
ISSN:
1089-7550
Quelle:
AIP Digital Archive
Thema:
Physik
Notizen:
The results of Monte Carlo simulation of phase separation during binary film coevaporation are presented for a range of deposition conditions. The model employed assumes that phase separation occurs through surface interdiffusion during deposition, while the bulk of the film remains frozen. Simulations were performed on A-B alloy films having compositions of 10 and 50 vol % solute. For both film compositions, the lateral scale of the domains at the film surface evolves to a steady-state size during deposition. A power-law dependence of the steady-state domain size on the inverse deposition rate is obtained. Simulation microstructures at 50 vol % compare favorably with those obtained in a previous experimental study of phase separation during coevaporation of Al-Ge films of the same composition. Results of simulations performed at 10 vol % are compared with the predictions of a theoretical model based on the above assumptions. The power-law exponent obtained from simulations at 10 vol % is different than that predicted by the theoretical model. The reasons for this difference are discussed.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1063/1.354825
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