Funct. Mater. 2024; 31 (2): 290-292.
doi:https://doi.org/10.15407/fm31.02.290
On finding the diffusion coefficient of an impurity on the results of evaporation refining
National Science Center "Kharkov Institute of Physics and Technology", Academic st, 1, Kharkiv, 61108 Ukraine
Abstract:
The fundamental possibility of calculating the diffusion coefficient D of an impurity in a substance based on the results of evaporation refining at a given temperature is shown - using the formula D = vX/Pe, where Pe is the Peclet number, v is the linear evaporation rate, X is the size factor of the refined material.
Keywords:
diffusion coefficient, distillation, sublimation, Peclet number
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