NMR study of a gel layer formed on an irradiated Na-aluminoborosilicate glass during aqueous alteration
Abstract Simplified borosilicate glass powders were irradiated by 952 MeV 136Xe ions and then altered in a solution at a high S/V ratio at pH 9 and 90 °C for 33 days. Compared to the alteration of a non-irradiated sample, the irradiated sample altered 3–5 times more. Overall, both the gels had a sim...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | npj Materials Degradation |
| Online Access: | https://doi.org/10.1038/s41529-024-00550-x |
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| author | Sathya Narayanasamy Thibault Charpentier Amreen Jan Mélanie Moskura Matilde Benassi Jean-Marc Delaye Stéphane Gin |
| author_facet | Sathya Narayanasamy Thibault Charpentier Amreen Jan Mélanie Moskura Matilde Benassi Jean-Marc Delaye Stéphane Gin |
| author_sort | Sathya Narayanasamy |
| collection | DOAJ |
| description | Abstract Simplified borosilicate glass powders were irradiated by 952 MeV 136Xe ions and then altered in a solution at a high S/V ratio at pH 9 and 90 °C for 33 days. Compared to the alteration of a non-irradiated sample, the irradiated sample altered 3–5 times more. Overall, both the gels had a similar structure as indicated by 29Si, 27Al, 23Na, and 17O NMR experiments. Nevertheless, according to 11B and 1H NMR experiments, differences were observed in the quantity and speciation of B retained in the gels. The results suggest that the glass alteration mechanisms responsible for passivation are not changed because of the irradiation-induced structural damages. However, the alteration kinetics, gel morphology related to porosity, and the degree of maturation are different. It seems that the gel formed on irradiated glass matures faster and retains B, which in turn influences the glass dissolution rate. |
| format | Article |
| id | doaj-art-2c7f27674aef416aa4f659b3f652fd68 |
| institution | Kabale University |
| issn | 2397-2106 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Materials Degradation |
| spelling | doaj-art-2c7f27674aef416aa4f659b3f652fd682025-01-19T12:33:52ZengNature Portfolionpj Materials Degradation2397-21062025-01-019111310.1038/s41529-024-00550-xNMR study of a gel layer formed on an irradiated Na-aluminoborosilicate glass during aqueous alterationSathya Narayanasamy0Thibault Charpentier1Amreen Jan2Mélanie Moskura3Matilde Benassi4Jean-Marc Delaye5Stéphane Gin6CEA, DES, ISEC, DPME, SEME, University of Montpellier, MarcouleUniversité Paris-Saclay, CEA, CNRS, NIMBECEA, DES, ISEC, DPME, SEME, University of Montpellier, MarcouleUniversité Paris-Saclay, CEA, CNRS, NIMBEUniversité Paris-Saclay, CEA, CNRS, NIMBECEA, DES, ISEC, DPME, SEME, University of Montpellier, MarcouleCEA, DES, ISEC, DPME, SEME, University of Montpellier, MarcouleAbstract Simplified borosilicate glass powders were irradiated by 952 MeV 136Xe ions and then altered in a solution at a high S/V ratio at pH 9 and 90 °C for 33 days. Compared to the alteration of a non-irradiated sample, the irradiated sample altered 3–5 times more. Overall, both the gels had a similar structure as indicated by 29Si, 27Al, 23Na, and 17O NMR experiments. Nevertheless, according to 11B and 1H NMR experiments, differences were observed in the quantity and speciation of B retained in the gels. The results suggest that the glass alteration mechanisms responsible for passivation are not changed because of the irradiation-induced structural damages. However, the alteration kinetics, gel morphology related to porosity, and the degree of maturation are different. It seems that the gel formed on irradiated glass matures faster and retains B, which in turn influences the glass dissolution rate.https://doi.org/10.1038/s41529-024-00550-x |
| spellingShingle | Sathya Narayanasamy Thibault Charpentier Amreen Jan Mélanie Moskura Matilde Benassi Jean-Marc Delaye Stéphane Gin NMR study of a gel layer formed on an irradiated Na-aluminoborosilicate glass during aqueous alteration npj Materials Degradation |
| title | NMR study of a gel layer formed on an irradiated Na-aluminoborosilicate glass during aqueous alteration |
| title_full | NMR study of a gel layer formed on an irradiated Na-aluminoborosilicate glass during aqueous alteration |
| title_fullStr | NMR study of a gel layer formed on an irradiated Na-aluminoborosilicate glass during aqueous alteration |
| title_full_unstemmed | NMR study of a gel layer formed on an irradiated Na-aluminoborosilicate glass during aqueous alteration |
| title_short | NMR study of a gel layer formed on an irradiated Na-aluminoborosilicate glass during aqueous alteration |
| title_sort | nmr study of a gel layer formed on an irradiated na aluminoborosilicate glass during aqueous alteration |
| url | https://doi.org/10.1038/s41529-024-00550-x |
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