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Irradiation induced densification and its correlation with three-membered rings in vitreous silica
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SYSNO ASEP 0485967 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Irradiation induced densification and its correlation with three-membered rings in vitreous silica Author(s) Gavenda, T. (CZ)
Gedeon, O. (CZ)
Jurek, Karel (FZU-D) RID, ORCID, SAINumber of authors 3 Source Title Journal of Non-Crystalline Solids. - : Elsevier - ISSN 0022-3093
Roč. 425, Oct (2015), s. 61-66Number of pages 6 s. Publication form Print - P Language eng - English Country NL - Netherlands Keywords silica glass ; electron irradiation ; densification ; Raman spectroscopy ; glass topology ; three-membered rings Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) R&D Projects GA15-12580S GA ČR - Czech Science Foundation (CSF) Institutional support FZU-D - RVO:68378271 UT WOS 000359958700008 EID SCOPUS 84930631151 DOI 10.1016/j.jnoncrysol.2015.05.037 Annotation Suprasil silica glass was irradiated by 50 keV electron beam with doses within the range of 3.1–191.1 kC/m2. Volume changes induced by electron irradiation were monitored by means of Atomic Force Microscopy (AFM). Raman spectra were taken from irradiated spots to observe structural changes. Irradiated glasses were annealed at temperatures 500–1000 °C. After annealing irradiated spots were again examined by AFM and Raman spectroscopy in order to observe volume and structural relaxation of radiation-induced changes. Electron beam caused volume compaction that was correlated with D2 peak area for lower doses. D2 peak evolution under irradiation and subsequent annealing showed that topological changes in glass structure are possible deeply below the glass transition temperature. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2018
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