Dissolution Mechanism of Soda-Lime Silicate Glass and of PNL 76-68 in the Presence of Dissolved Mg
| العنوان: | Dissolution Mechanism of Soda-Lime Silicate Glass and of PNL 76-68 in the Presence of Dissolved Mg |
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| المؤلفون: | Yan Guo, M. A. Adel-Hadadi, Gwendolyn S. Marbury, Aaron Barkatt, Jing C. Sang, Alisa Barkatt |
| المصدر: | MRS Proceedings. 333 |
| بيانات النشر: | Springer Science and Business Media LLC, 1993. |
| سنة النشر: | 1993 |
| مصطلحات موضوعية: | Alkaline earth metal, Materials science, Magnesium, Borosilicate glass, chemistry.chemical_element, Mineralogy, chemistry.chemical_compound, Soda lime, chemistry, Vitrification, Leaching (metallurgy), Boron, Dissolution, Nuclear chemistry |
| الوصف: | Leaching studies were performed on powdered PNL 76-68 glass in de-ionized water in the presence of Mg solute. The results showed that the presence of Mg in the leachant greatly reduced the rate of glass dissolution. The equation Q=krα was used to express the experimental data. In the absence of Mg, α was about 1, i.e., the amount of glass dissolved was linear with time. In the presence of Mg, α was close to 0.5, i.e. the extracted amount was proportional to the square root of time. Therefore, the reduction of the dissolution rate of PNL 76-68 glass in the presence of Mg solute could be explained as a result of a change in the glass dissolution mechanism.Comparative leaching studies on bulk soda-lime silicate glass in a sodium borate buffered system (pH 8.1) showed the same results. The presence of Mg in the leachant reduced the rate of glass dissolution. In the absence of Mg, α was about 1, while in the presence of Mg, α was 0.5. This change in α was not caused by changes in pH, and it represents a real change in the glass dissolution mechanism. |
| تدمد: | 1946-4274 0272-9172 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::f800a3a5ad73714bf177dc31f33fd8b0 https://doi.org/10.1557/proc-333-519 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........f800a3a5ad73714bf177dc31f33fd8b0 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 19464274 02729172 |
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