Structural characterization of the near-surface region of soda-lime-silica glass by X-ray photoelectron spectroscopy

DOI zum Zitieren der Version auf EPub Bayreuth: https://doi.org/10.15495/EPub_UBT_00007122
URN to cite this document: urn:nbn:de:bvb:703-epub-7122-6

Title data

Roy, Barsheek ; Baier, Felix ; Rosin, Andreas ; Gerdes, Thorsten ; Schafföner, Stefan:
Structural characterization of the near-surface region of soda-lime-silica glass by X-ray photoelectron spectroscopy.
In: International Journal of Applied Glass Science. Vol. 14 (2023) Issue 2 . - pp. 229-239.
ISSN 2041-1294
DOI der Verlagsversion: https://doi.org/10.1111/ijag.16604

	Format: PDF Name: Int J of Appl Glass Sci - 2022 - Roy - Structural characterization of the near‐surface region of soda lime silica glass by.pdf Version: Published Version Available under License Creative Commons BY 4.0: Attribution
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Project information

Project title:	Project's official title Project's id VaporCoat No information
Project financing:	Andere Bavarian State Ministry of the Environment and Consumer Protection

Abstract

The structural chemistry of the near-surface region of soda–lime–silica (SLS) glass is described in terms of silicate network connectivity using X-ray photoelectron spectroscopy (XPS). A thorough investigation of O1s and Si2p spectral lines by sequential XPS measurements, accompanied by Ar+ sputtering, revealed the variation of concentration of bridging oxygen, non-bridging oxygen (NBO), and hydrous species (SiOH/H2O) as a function of depth from the glass surface. The Ototal/Si atomic ratio was calculated to vary in the range of 2.90–3.74 throughout the depth of sputtering for a total duration of 110 min, while considering each of the aforementioned oxygen speciations in the curve-fitted spectra of O1s orbital. The glass surface up to a depth of 1–3 nm had the highest Ototal/Si ratio of 3.74, which was representative for a mechanically weak structure with Q0 and Q1 species, marked by the respective linkages of four and three NBOs per silica tetrahedral unit. This dictates the vital contribution of the hydrous species associated with silanol groups to the near-surface structure of SLS glass.

Further data

Item Type:	Article in a journal
Keywords:	glass; nanostructures; soda-lime-silica; surface; X-ray photoelectron spectroscopy
DDC Subjects:	500 Science 600 Technology, medicine, applied sciences > 600 Technology 600 Technology, medicine, applied sciences > 620 Engineering
Institutions of the University:	Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics XI and Didactics of Physics Faculties > Faculty of Engineering Science > Chair Ceramic Materials Faculties > Faculty of Engineering Science > Chair Biomaterials Faculties Faculties > Faculty of Mathematics, Physics und Computer Science Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics Faculties > Faculty of Engineering Science
Language:	English
Originates at UBT:	Yes
URN:	urn:nbn:de:bvb:703-epub-7122-6
Date Deposited:	19 Jul 2023 06:54
Last Modified:	19 Jul 2023 06:55
URI:	https://epub.uni-bayreuth.de/id/eprint/7122

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