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Title: THE DISSOLUTION AND DIFFUSION OF OXYGEN IN ZIRCONIUM

Abstract

Measurement of the diffusion coefficients of oxygen in {alpha}-zirconium by two methods have confirmed the results of Pemsler (for measurements of the dissolution rates of anodic oxides) and the results of Davis (by microhardness measurements on specimens from prolonged thermal oxidation). Repeated dissolution of anodic films and dissolution of thin thermal films gave higher values for the diffusion coefficient and suggested that this may be a function of the oxygen content. Oxidation in air gave anomalous microhardness curves showing a much longer 'tail' than expected from the rate of oxygen diffusion. This may be indicative of some interaction between oxygen and nitrogen, with nitrogen diffusing ahead of the oxygen gradient. In the absence of oxygen, the diffusion coefficient for nitrogen is much smaller than that for oxygen. (auth)

Authors:
Publication Date:
Research Org.:
Atomic Energy of Canada Ltd., Chalk River, Ontario (Canada)
OSTI Identifier:
4606403
Alternate Identifier(s):
OSTI ID: 4606403
Report Number(s):
AECL-2268
NSA Number:
NSA-19-044673
Resource Type:
Technical Report
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-65
Country of Publication:
Canada
Language:
English
Subject:
METALS, CERAMICS, AND OTHER MATERIALS; Properties and Structure; ALLOTROPY; ANODES; CHEMICAL REACTIONS; DIAGRAMS; DIFFUSION; FILMS; HARDNESS; NITROGEN; OXIDES; OXYGEN; TEMPERATURE; ZIRCONIUM; ZIRCONIUM-ALPHA

Citation Formats

Doerffler, W.W. THE DISSOLUTION AND DIFFUSION OF OXYGEN IN ZIRCONIUM. Canada: N. p., 1965. Web.
Doerffler, W.W. THE DISSOLUTION AND DIFFUSION OF OXYGEN IN ZIRCONIUM. Canada.
Doerffler, W.W. Sat . "THE DISSOLUTION AND DIFFUSION OF OXYGEN IN ZIRCONIUM". Canada. https://www.osti.gov/servlets/purl/4606403.
@article{osti_4606403,
title = {THE DISSOLUTION AND DIFFUSION OF OXYGEN IN ZIRCONIUM},
author = {Doerffler, W.W.},
abstractNote = {Measurement of the diffusion coefficients of oxygen in {alpha}-zirconium by two methods have confirmed the results of Pemsler (for measurements of the dissolution rates of anodic oxides) and the results of Davis (by microhardness measurements on specimens from prolonged thermal oxidation). Repeated dissolution of anodic films and dissolution of thin thermal films gave higher values for the diffusion coefficient and suggested that this may be a function of the oxygen content. Oxidation in air gave anomalous microhardness curves showing a much longer 'tail' than expected from the rate of oxygen diffusion. This may be indicative of some interaction between oxygen and nitrogen, with nitrogen diffusing ahead of the oxygen gradient. In the absence of oxygen, the diffusion coefficient for nitrogen is much smaller than that for oxygen. (auth)},
doi = {},
journal = {},
number = ,
volume = ,
place = {Canada},
year = {1965},
month = {5}
}

Technical Report:

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