Corrosion Behavior of Simulated HLW Glass in the Presence of Magnesium Ion
| Autor: | Seiichiro Mitsui, Toshikatsu Maeda, Hiroyuki Ohmori, T. Banba |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
inorganic chemicals
Materials science Article Subject Magnesium silicate Magnesium Process Chemistry and Technology Metallurgy chemistry.chemical_element Corrosion chemistry lcsh:TA401-492 General Materials Science lcsh:Materials of engineering and construction. Mechanics of materials Leaching (metallurgy) Leachate Corrosion behavior Magnesium ion Dissolution |
| Zdroj: | International Journal of Corrosion, Vol 2011 (2011) |
| ISSN: | 1687-9333 1687-9325 |
| Popis: | Static leach tests were conducted for simulated HLW glass in MgCl2solution for up to 92 days to investigate the dissolution mechanism of HLW glass under coastal repository condition. Under the condition that magnesium ion exists in leachate, the dissolution rate of the glass did not decrease with time during leaching, while the rate decreased when the magnesium ion depleted in the leachate. In addition, altered layer including magnesium and silica was observed at the surface of the glass after the leach tests. The present results imply that dissolution of the glass is accompanied with formation of magnesium silicate consuming silica, a glass network former. As a consequence, the glass dissolved with an initial high dissolution rate. |
| Databáze: | OpenAIRE |
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