Deuterium permeation through Eurofer and a-alumina coated Eurofer

Experiments on deuterium permeation through Eurofer have been performed in the temperature range 573-873 K at driving pressures 103-105 Pa. The permeability is found to be coincident with literature data on Eurofer measured at a fixed pressure and on F82H steel as well. A crystalline alumina coating...

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Bibliographic Details
Published in:Journal of nuclear materials 2004-07, Vol.328 (2-3), p.103-106
Main Authors: Levchuk, D, Koch, F, Maier, H, Bolt, H
Format: Article
Language:English
Online Access:Get full text
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Summary:Experiments on deuterium permeation through Eurofer have been performed in the temperature range 573-873 K at driving pressures 103-105 Pa. The permeability is found to be coincident with literature data on Eurofer measured at a fixed pressure and on F82H steel as well. A crystalline alumina coating of 1 *mm in thickness produced on the surface by means of filtered arc discharge has led to a marked decrease of the permeation flux compared to bare material in the temperature range 973-1073 K. Surface effects appear to play a noticeable role in this decrease. In spite of this, a reduction factor of 103, perfect layer stability to thermal cycling, and a relatively low deposition temperature make *a-alumina a very promising material for fusion applications.
ISSN:0022-3115