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Alkali ion diffusion and structure of chemically strengthened TiO2 doped soda-lime silicate glass
Uppsala University, Sweden.
Uppsala University, Sweden.
Uppsala University, Sweden.ORCID iD: 0000-0003-0296-5247
RISE Research Institutes of Sweden, Built Environment, Building and Real Estate. (Glass)ORCID iD: 0000-0003-2160-6979
2022 (English)In: Journal of Non-Crystalline Solids, ISSN 0022-3093, E-ISSN 1873-4812, Vol. 586, p. 121564-121564, article id 121564Article in journal (Refereed) Published
Abstract [en]

Diffusion kinetics and structural properties of chemically strengthened titania-doped soda-lime silicate glasses were studied by depth-resolved X-ray photoelectron spectroscopy, Raman spectroscopy and spectrophotometry. The glasses were ion exchanged, whereby Na+ in the glass was replaced by K+ in a molten salt bath, at four different treatment temperatures between 350 and 500 °C. The alkali diffusion coefficient, DK-Na, and corresponding activation energy were calculated to be between 3.26×10−12 and 4.47×10−11 cm2s−1 and between 101.1 kJmol−1 and 105.6 kJmol−1, respectively. DK-Na was observed to decrease as the TiO2 concentration was increased. Raman analysis showed Q3-silicate species with different bond lengths, which was attributed to surface compressive stresses, and increasing Si-O-Si bond angle with increasing ion exchange temperature. Ti3+ ions exist as a minor species in the glasses and its concentration depends on the TiO2 content. Deconvolution of the optical absorption spectra reveals Jahn-Teller compressive distortion of the Ti3+ octahedral coordination.

Place, publisher, year, edition, pages
2022. Vol. 586, p. 121564-121564, article id 121564
Keywords [en]
Glass, Chemically strengthened glass, ion exchange, X-ray photoelectron spectroscopy, Raman spectroscopy, Interdiffusion coefficient, Diffusion activation barrier
National Category
Other Materials Engineering
Identifiers
URN: urn:nbn:se:ri:diva-58914DOI: 10.1016/j.jnoncrysol.2022.121564OAI: oai:DiVA.org:ri-58914DiVA, id: diva2:1647379
Projects
Tunnare och starkare glas för hållbar produktion och konsumtion
Funder
Swedish Research Council Formas, 2018-00707Available from: 2022-03-26 Created: 2022-03-26 Last updated: 2023-03-14Bibliographically approved

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Karlsson, Stefan

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Österlund, LarsKarlsson, Stefan
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Bengtsson, F., Pehlivan, I. B., Österlund, L. & Karlsson, S. (2022). Dataset: Alkali Ion diffusion and structure of chemically strengthened TiO2 doped soda-lime silicate glass.

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