Browsing College of Natural Sciences by Author "Wassie, Aman"

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Determination of the mean first passage time of a vacancy in Nial Binary Alloy by Analytical and Adib’s Simulation Algorithm and Finding its Diffusion Coefficient

Wassie, Aman (Addis Ababa University, 2012-12)

The mean first passage time (MFPT) and effective diffusion coefficients of a vacancy diffusing in NiAl compound via three main vacancy diffusion mechanisms are studied both numerically and analytically. These mechanisms ...
Diffusion time for a Vancancy to Diffuse from one Stable to the next within a Sublattice

Wassie, Aman (Addis Ababa University, 2001-06)

vVe considered two different mechanisms by which a vacancy diffuses from one stable state to the next within a sublattice for a two dimensional binary alloys. For both mechanisms, we have found that the diffusion time ...

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