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Glass-forming ability and structure of glasses in the ZnO-WO.sub.3./sub.-P.sub.2./sub.O.sub.5./sub. system
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SYSNO ASEP 0380606 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Glass-forming ability and structure of glasses in the ZnO-WO3-P2O5 system Author(s) Koudelka, L. (CZ)
Šubčík, J. (CZ)
Mošner, P. (CZ)
Gregora, Ivan (FZU-D) RID, ORCID
Montagne, L. (FR)
Delevoye, L. (FR)Source Title European Journal of Glass Science and Techology. Part B. Physics and Chemistry of Glasses - ISSN 1753-3562
Roč. 53, č. 3 (2012), s. 79-85Number of pages 7 s. Language eng - English Country GB - United Kingdom Keywords glasses ; ternary systems ; Raman spectra ; NMR Subject RIV BM - Solid Matter Physics ; Magnetism R&D Projects KAN301370701 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z10100520 - FZU-D (2005-2011) UT WOS 000308900000004 EID SCOPUS 84865224374 Annotation The glass-forming region of the ZnO–WO3-P2O5 system has been determined and basic physical properties of the glasses were obtained. Structure and properties of these glasses were studied by Raman and 31P NMR spectroscopies. 31P MAS NMR spectra of the glasses show that the phosphate chains are shortened by the incorporation of tungstate structural units. The co-existence of WO4 and WO6 units in the glass structure was seen in glasses with a high ZnO content. Raman spectra reveal existence of isolated WO6 units especially in the glasses with a low WO3 content and a high P2O5 content. Clustering of WO6 units by the formation W–O–W bonds takes place in glasses with high WO3 content. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2013
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