STUDY OF RADIATION-INDUCED ELECTRICAL DEGRADATION OF ALUMINA IN A DYNAMIC PUMPING CONDITION IN A FISSION REACTOR

Authors
SHIKAMA T NARUI M KAYANO H SAGAWA T
Citation
T. Shikama et al., STUDY OF RADIATION-INDUCED ELECTRICAL DEGRADATION OF ALUMINA IN A DYNAMIC PUMPING CONDITION IN A FISSION REACTOR, Journal of nuclear materials, 215, 1994, pp. 1133-1137
Citations number
12
Categorie Soggetti
Nuclear Sciences & Tecnology","Metallurgy & Mining","Material Science
Journal title
Journal of nuclear materials → ACNP
ISSN journal
00223115
Volume
215
Year of publication
1994
Part
B
Pages
1133 - 1137
Database
ISI
SICI code
0022-3115(1994)215:<1133:SOREDO>2.0.ZU;2-8
Abstract
An electrical resistivity of polycrystal oi-alumina was measured at ab out 680 K in a dynamic pumping condition in a fission reactor, JMTR. I n a good vacuum, we observed smaller RIC (radiation-induced conductivi ty) than our previous results. We observed RIED (radiation-induced ele ctrical degradation)-like behavior. The results suggested that RIED wo uld take off faster at a higher ionizing dose rate. In the mean-time, the take-off occurred at about the same displacement damage of about 0 .03-0.05 dpa in the range of fast neutron flux of (3.4-15.1) x 10(13) n/cm(2) s.