抄録
In the vicinity of a high-level waste repository, corrosion of carbon steel overpacks will create a reducing environment. Reducing conditions are expected to retard the migration of redox-sensitive radionuclides such as technetium. The apparent diffusion coefficients of technetium were measured in compacted bentonites (Kunigel V1 and Kunipia F, JAPAN) in contact with carbon steel and its corrosion products under reducing conditions or without carbon steel under oxidizing conditions for comparison. The apparent diffusion coefficients measured were 10-10 to 10-11 m2/s under oxidizing conditions and 10-12 to 10-13 m2/s under reducing conditions. There were significant effects of redox condition, dry density (0.2 to 2.3 g/cm3) and montmorillonite content (50% for Kunigel V1 or 100% for Kunipia F) on the apparent diffusion coefficients. Montmorillonite density could be a good index to explain density dependence of the diffusion coefficients under both reducing and oxidizing conditions.
| 元の言語 | 英語 |
|---|---|
| ページ（範囲） | [d]909-916 |
| ジャーナル | Materials Research Society Symposium - Proceedings |
| 巻 | 465 |
| 出版物ステータス | 出版済み - 1 1 1997 |
| イベント | Proceedings of the 1996 MRS Fall Meeting - Boston, MA, USA 継続期間: 12 2 1996 → 12 6 1996 |
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All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
これを引用
Diffusion of technetium in compacted bentonites in the reducing condition with corrosion products of iron. / Kuroda, Yuji; Idemitsu, K.; Furuya, H.; Inagaki, Y.; Arima, T.
：: Materials Research Society Symposium - Proceedings, 巻 465, 01.01.1997, p. [d]909-916.研究成果: ジャーナルへの寄稿 › Conference article
}
TY - JOUR
T1 - Diffusion of technetium in compacted bentonites in the reducing condition with corrosion products of iron
AU - Kuroda, Yuji
AU - Idemitsu, K.
AU - Furuya, H.
AU - Inagaki, Y.
AU - Arima, T.
PY - 1997/1/1
Y1 - 1997/1/1
N2 - In the vicinity of a high-level waste repository, corrosion of carbon steel overpacks will create a reducing environment. Reducing conditions are expected to retard the migration of redox-sensitive radionuclides such as technetium. The apparent diffusion coefficients of technetium were measured in compacted bentonites (Kunigel V1 and Kunipia F, JAPAN) in contact with carbon steel and its corrosion products under reducing conditions or without carbon steel under oxidizing conditions for comparison. The apparent diffusion coefficients measured were 10-10 to 10-11 m2/s under oxidizing conditions and 10-12 to 10-13 m2/s under reducing conditions. There were significant effects of redox condition, dry density (0.2 to 2.3 g/cm3) and montmorillonite content (50% for Kunigel V1 or 100% for Kunipia F) on the apparent diffusion coefficients. Montmorillonite density could be a good index to explain density dependence of the diffusion coefficients under both reducing and oxidizing conditions.
AB - In the vicinity of a high-level waste repository, corrosion of carbon steel overpacks will create a reducing environment. Reducing conditions are expected to retard the migration of redox-sensitive radionuclides such as technetium. The apparent diffusion coefficients of technetium were measured in compacted bentonites (Kunigel V1 and Kunipia F, JAPAN) in contact with carbon steel and its corrosion products under reducing conditions or without carbon steel under oxidizing conditions for comparison. The apparent diffusion coefficients measured were 10-10 to 10-11 m2/s under oxidizing conditions and 10-12 to 10-13 m2/s under reducing conditions. There were significant effects of redox condition, dry density (0.2 to 2.3 g/cm3) and montmorillonite content (50% for Kunigel V1 or 100% for Kunipia F) on the apparent diffusion coefficients. Montmorillonite density could be a good index to explain density dependence of the diffusion coefficients under both reducing and oxidizing conditions.
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UR - http://www.scopus.com/inward/citedby.url?scp=0030709515&partnerID=8YFLogxK
M3 - Conference article
AN - SCOPUS:0030709515
VL - 465
SP - [d]909-916
JO - Materials Research Society Symposium - Proceedings
JF - Materials Research Society Symposium - Proceedings
SN - 0272-9172
ER -