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Studies on the Oxygen Gradients in Oxidizing Metals

Journal Article · · Journal of the Electrochemical Society
DOI:https://doi.org/10.1149/1.2426137· OSTI ID:4052702
The oxygen gradient beneath the oxide film on zirconium oxidized at 850 deg C for times ranging from 8 to 305 hr was measured. The technique used involves the measurement of the rate of dissolution of interference colored oxide films. Experimentally determined gradients are in good agreement with a theoretical expression involving the diffusivity, time, and oxide film thickness. Metallography and microhardness measurements demonstrated the existence of a number of phases in the oxygen containing metal substrate. These are believed to be associated with orderdisorder reactions. No evidence of zones of constant composition or steady-state gradients was observed.
Research Organization:
Kennecott Copper Corp., Lexington, Mass.
Sponsoring Organization:
USDOE
NSA Number:
NSA-18-018324
OSTI ID:
4052702
Journal Information:
Journal of the Electrochemical Society, Journal Name: Journal of the Electrochemical Society Journal Issue: 4 Vol. 111; ISSN JESOAN; ISSN 0013-4651
Publisher:
The Electrochemical Society
Country of Publication:
Country unknown/Code not available
Language:
English

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