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Metallic diffusion measured by a modified Knudsen techniqueDiffusion 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.
Document ID
19690000308
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Fray, D. J.
Date Acquired
August 5, 2013
Publication Date
September 1, 1969
Subject Category
Materials
Report/Patent Number
HQN-10145
Report Number: HQN-10145
Accession Number
69B10309
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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