Reduction of surface erosion caused by helium blistering: Microstructural effects

An attempt has been made to determine if a suitable microstructure (e.g., grain size, dispersion of oxide particles in a metal matrix) of a material can be found to reduce the helium buildup and subsequent blistering in near-surface regions. A comparison of the surface erosion due to helium blisteri...

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Bibliographic Details
Published in:Applied physics letters 1975-08, Vol.27 (4), p.197-199
Main Authors: Das, S. K., Kaminsky, M., Rossing, T. D.
Format: Article
Language:English
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Summary:An attempt has been made to determine if a suitable microstructure (e.g., grain size, dispersion of oxide particles in a metal matrix) of a material can be found to reduce the helium buildup and subsequent blistering in near-surface regions. A comparison of the surface erosion due to helium blistering in aluminum and sintered aluminum powder (SAP) has been made for irradiation at room temperature with 100-keV He+ ions to a dose of 1.0 C/cm2. The results show high reduction in erosion rate in SAP by more than 3 orders of magnitude as compared to the erosion rate in pure aluminum.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.88426