Actions for Helium blistering of ceramic coatings on Hastelloy X and Nb--1% Zr.

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Helium blistering of ceramic coatings on Hastelloy X and Nb--1% Zr.

Author
Kaminsky, M.
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
Das, S. K. and Ekern, R.

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Summary
The surface damage of insulating ceramic coatings on Hastelloy X and Nb-- 1 percent Zr held at room temperature and at 3000C was studied for both 100 keV and 250 keV helium ion irradiation for a dose range from 3.7 x 1018 to 1 x 1019 ions cm-2. Blisters were observed after room temperature irradiation with both 100 keV and 250 keV helium ions. However, for irradiation at 3000C no blisters could be observed. The sharp rise in the helium permeation with temperature, observed by others for some glasses and ceramics, is thought to be responsible for this behavior. These results suggest that for the energy range studied helium blistering has a negligible surface erosion effect on such coatings if they are operated at temperatures above 3000C. (auth)
Report Numbers
CONF-751101-57
Other Subject(s)
Collection
U.S. Atomic Energy Commission depository collection.
Note
DOE contract number: W-31-109-ENG-38
NSA number: NSA-33-007087
OSTI Identifier 4162461
Research organization: Argonne National Lab., Ill. (USA).
View MARC record | catkey: 43931266