In a simulated engineered barrier system consisting of a simulated HLW glass doped with Pu, a compacted bentonite and water under reducing conditions, migration tests of Pu from the glass into the bentonite through water were performed. The following results were obtained: (1) The presence of bentonite enhances the glass dissolution while it has no remarkable influence on the concentration of Pu dissolved species in the solution. (2) Only a small part of the leached Pu, which may correspond to the dissolved species, can diffuse into the bentonite with the apparent diffusion coefficient of 3×10-14 m2/s. (3) Interactions between the glass and the bentonite have no remarkable influence on the diffusion of Pu.
|ジャーナル||Materials Research Society Symposium - Proceedings|
|出版ステータス||出版済み - 12月 1 1999|
|イベント||Proceedings of the 1998 MRS Fall Meeting - Symposium 'Scientific Basis for Nuclear Waste Management XXII' - Boston, MA, USA|
継続期間: 11月 30 1998 → 12月 4 1998
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