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The effect of nitrogen on the structure and thermal properties of beryllium-containing Na-(Li)-Si-O-N glasses
Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för byggd miljö och energiteknik (BET). Gdańsk University of Technology, Poland.
Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för byggd miljö och energiteknik (BET). (Glass group)
Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för byggd miljö och energiteknik (BET). National Hellenic Research Foundation, Greece;Alfred University, USA.
National Hellenic Research Foundation, Greece.
Vise andre og tillknytning
1919 (engelsk)Inngår i: Journal of Non-Crystalline Solids, ISSN 0022-3093, E-ISSN 1873-4812, Vol. 522, artikkel-id 119585Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Two oxynitride glass series with the composition of 35Na2O-5BeO-(60-x)SiO2-xSi3N4 and 9Li2O- 27Na2O-5BeO-(59-x)SiO2-xSi3N4, were prepared. The glasses' topography and structure were studied by Scanning Electron Microscopy and Raman spectroscopy. The composition was analyzed by Inductively Coupled Plasma Optical Emission Spectrometer, SEM-EDS and nitrogen and oxygen elemental analyzer. Na-(Li)-Be-silicate glasses were found to contain up to approximately 3.4 (or 5.2 for EDS measurements) at.% of N, respectively. The samples were homogenous in their topography and compositions of their cross-sections.

The presence of three-fold coordinated nitrogen atoms in Na-Be-Si-O-N glasses results in higher degree of polymerization as was observed by Raman spectroscopy. The spectrum of analogous glasses with lithium did not show a significant decrease in Q2 units but exhibit the presence of Q4 units which also indicates a polymerization of the network. The incorporation of nitrogen in these glasses leads to the increase of the glass transition temperature and thermal stability.

sted, utgiver, år, opplag, sider
Elsevier, 1919. Vol. 522, artikkel-id 119585
Emneord [en]
Oxynitride glasses Beryllium-silicate glasses Raman spectroscopy Thermal properties
HSV kategori
Forskningsprogram
Teknik, Glasteknologi
Identifikatorer
URN: urn:nbn:se:lnu:diva-88616DOI: 10.1016/j.jnoncrysol.2019.119585OAI: oai:DiVA.org:lnu-88616DiVA, id: diva2:1345911
Forskningsfinansiär
The Crafoord Foundation, 20160900ÅForsk (Ångpanneföreningen's Foundation for Research and Development), 2015-04809Knowledge Foundation, 68110029Tilgjengelig fra: 2019-08-26 Laget: 2019-08-26 Sist oppdatert: 2019-09-04bibliografisk kontrollert

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Wójcik, Natalia A.Jonson, BoMöncke, DorisAli, Sharafat

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