Actions for Helium trapping in aluminum and sintered aluminum powders

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Helium trapping in aluminum and sintered aluminum powders

Author
Das, S. K.
Published
United States : [publisher not identified], 1975.
[Oak Ridge, Tennessee] : [U.S. Atomic Energy Commission], 1975.
Physical Description
microfiche : negative ; 11 x 15 cm
Additional Creators
Kaminsky, M. and Rossing, T.

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Summary
The surface erosion of annealed aluminum and of sintered aluminum powder (SAP) due to blistering from implantation of 100-keV 4He+ ions at room temperature has been investigated. A substantial reduction in the blistering erosion rate in SAP was observed from that in pure annealed aluminum. In order to determine whether the observed reduction in blistering is due to enhanced helium trapping or due to helium released, the implanted helium profiles in annealed aluminum and in SAP have been studied by Rutherford backscattering. The results show that more helium is trapped in SAP than in aluminum for identical irradiation conditions. The observed reduction in erosion from helium blistering in SAP is more likely due to the dispersion of trapped helium at the large Al-Al2O3 interfaces and at the large grain boundaries in SAP than to helium release. (auth)
Report Numbers
CONF-750949-9
Other Subject(s)
Collection
U.S. Atomic Energy Commission depository collection.
Note
DOE contract number: W-31-109-ENG-38
NSA number: NSA-33-007086
OSTI Identifier 4162462
Research organization: Argonne National Lab., Ill. (USA).
View MARC record | catkey: 43931905