Influence of external β-irradiation in oxide glasses
| Autor: | Yannick Guyot, B Padlyak, Bruno Boizot, B. Champagnon, Nadège Ollier, Gérard Panczer |
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| Přispěvatelé: | Laboratoire de Physico-Chimie des Matériaux Luminescents (LPCML), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Laboratoire des Solides Irradiés (LSI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Academy of Bydgoszcz, Laboratoire de Physico-Chimie des Matériaux Luminescents ( LPCML ), Université Claude Bernard Lyon 1 ( UCBL ), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique ( CNRS ), Laboratoire des Solides Irradiés ( LSI - UMR 7642 ), Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ) -École polytechnique ( X ) -Université Paris-Saclay-Centre National de la Recherche Scientifique ( CNRS ), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X) |
| Jazyk: | angličtina |
| Rok vydání: | 2003 |
| Předmět: |
Analytical chemistry
Oxide Mineralogy 02 engineering and technology Porous glass 01 natural sciences Crystal chemistry.chemical_compound symbols.namesake 0103 physical sciences Materials Chemistry Irradiation [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat] 010302 applied physics Borosilicate glass 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure Silicate Electronic Optical and Magnetic Materials chemistry Ceramics and Composites symbols 0210 nano-technology Raman spectroscopy [ PHYS.COND ] Physics [physics]/Condensed Matter [cond-mat] |
| Zdroj: | Journal of Non-Crystalline Solids Journal of Non-Crystalline Solids, 2003, 323 (1-3), pp.200-206. ⟨10.1016/S0022-3093(03)00307-7⟩ Journal of non cristalline solids Journal of non cristalline solids, 2003, 323 (1-3), pp.200-206. 〈10.1016/S0022-3093(03)00307-7〉 Journal of Non-Crystalline Solids, Elsevier, 2003, 323 (1-3), pp.200-206. ⟨10.1016/S0022-3093(03)00307-7⟩ |
| ISSN: | 0022-3093 |
| DOI: | 10.1016/S0022-3093(03)00307-7⟩ |
| Popis: | International audience; Radiation effects in oxide glass as external β-irradiation has been investigated by Raman spectroscopy, Cr3+ luminescence and EPR spectroscopy to analyze microstructure evolution. Comparison between simplified and complex glasses (high-level nuclear waste glass analogue) was undertaken. Migration and segregation of sodium have been confirmed on simplified irradiated glasses by a polymerization increase and dissolved oxygen presence. Densification under irradiation has also been demonstrated with the increase of three-membered silicate rings in silicate glass and the decrease of the average Si–O–Si angle in the borosilicate glass. In both glasses, Cr3+ crystal field was increased, suggesting a Cr–O length decrease. The complex borosilicate glass responds differently: densification effect and Na segregation were not detected. Under β-irradiation, electron-trapping processes on Cr6+ occurred, forming Cr4+ and Cr5+ species. |
| Databáze: | OpenAIRE |
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