NASA NTRS · 19690000308
Metallic diffusion measured by a modified Knudsen technique
Abstract
Diffusion coefficient of a metal in high temperature system is determined. From the measurement of the weight loss from a Knudsen cell, the vapor pressure of the escaping species can be calculated. If the only way this species can enter the Knudsen cell is by diffusion through a foil, the weight loss is diffusion flux.
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Fray, D. J.. 1969-09-01. Metallic diffusion measured by a modified Knudsen technique. https://ntrs.nasa.gov/citations/19690000308
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