Study of radiation induced electrical degradation of alumina in a dynamic pumping condition in a fission reactor

Tatsuo Shikama; Minoru Narui; Hideo Kayano; Tsutomu Sagawa

doi:10.1016/0022-3115(94)91009-X

Study of radiation induced electrical degradation of alumina in a dynamic pumping condition in a fission reactor

Tatsuo Shikama, Minoru Narui, Hideo Kayano, Tsutomu Sagawa

Institute for Materials Research (IMR)

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

An electrical resistivity of polycrystal α-alumina was measured at about 680 K in a dynamic pumping condition in a fission reactor, JMTR. In a good vacuum, we observed smaller RIC (radiation-induced conductivity) than our previous results. We observed RIED (radiation-induced electrical degradation) -like behavior. The results suggested that RIED would 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) × 10¹³ n/cm² s.

Original language	English
Pages (from-to)	1133-1137
Number of pages	5
Journal	Journal of Nuclear Materials
Volume	212-215
Issue number	PART B
DOIs	https://doi.org/10.1016/0022-3115(94)91009-X
Publication status	Published - 1994 Sep

ASJC Scopus subject areas

Nuclear and High Energy Physics
Materials Science(all)
Nuclear Energy and Engineering

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abstract = "An electrical resistivity of polycrystal α-alumina was measured at about 680 K in a dynamic pumping condition in a fission reactor, JMTR. In a good vacuum, we observed smaller RIC (radiation-induced conductivity) than our previous results. We observed RIED (radiation-induced electrical degradation) -like behavior. The results suggested that RIED would 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) × 1013 n/cm2 s.",

author = "Tatsuo Shikama and Minoru Narui and Hideo Kayano and Tsutomu Sagawa",

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AU - Shikama, Tatsuo

AU - Narui, Minoru

AU - Kayano, Hideo

AU - Sagawa, Tsutomu

PY - 1994/9

Y1 - 1994/9

N2 - An electrical resistivity of polycrystal α-alumina was measured at about 680 K in a dynamic pumping condition in a fission reactor, JMTR. In a good vacuum, we observed smaller RIC (radiation-induced conductivity) than our previous results. We observed RIED (radiation-induced electrical degradation) -like behavior. The results suggested that RIED would 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) × 1013 n/cm2 s.

AB - An electrical resistivity of polycrystal α-alumina was measured at about 680 K in a dynamic pumping condition in a fission reactor, JMTR. In a good vacuum, we observed smaller RIC (radiation-induced conductivity) than our previous results. We observed RIED (radiation-induced electrical degradation) -like behavior. The results suggested that RIED would 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) × 1013 n/cm2 s.

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Study of radiation induced electrical degradation of alumina in a dynamic pumping condition in a fission reactor

Abstract

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