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Single-Side Ion Exchange Strengthening of Holed Float Glass
Linnaeus University, Faculty of Science and Engineering, School of Engineering. (Glass group)
Linnaeus University, Faculty of Science and Engineering, School of Engineering. (Glass Group)
Linnaeus University, Faculty of Science and Engineering, School of Engineering.ORCID iD: 0000-0001-5319-4855
Linnaeus University, Faculty of Science and Engineering, School of Engineering.
2012 (English)In: Nordic Conference on Ceramic and Glass Technology, 2012Conference paper, Oral presentation only (Other academic)
Abstract [en]

The fracture strength of oxide glasses is to a large degree influenced by other factors than the inherent strength of the bonds in the vitreous network such as surface defects. Due to the brittle nature of glass, mechanical processing decreases the strength substantially. The aim of this study was to investigate ion exchange strengthening also known as chemical strengthening of commercially available mechanically processed soda-lime-silicate float glass and to compare it with as-received float glass by means of flexural fracture load. The dimensions of the samples were 66±2 x 66±2 mm and two series had 7 mm diamond drilled holes in the centre of each sample while one series was as-received. Ion exchange of sodium ions by larger potassium ions were performed by treating the air-side of a series of samples with a KNO3:KCl mixture at 450 °C. The flexural fracture load of both untreated and ion exchanged holed samples was measured by means of the coaxial double ring test. The ion exchanged samples showed an arithmetic mean fracture load increase of approximately 140% compared to untreated holed float glass. The drilled hole decreases the arithmetic mean fracture load to approximately 25% of as-received float glass whilst the strengthening effect of the ion exchange improves it to around 65% of as-received float glass.

Place, publisher, year, edition, pages
2012.
National Category
Materials Engineering
Research subject
Technology (byts ev till Engineering), Glass Technology
Identifiers
URN: urn:nbn:se:lnu:diva-22864OAI: oai:DiVA.org:lnu-22864DiVA: diva2:576512
Conference
Nordic Conference on Ceramic and Glass Technology, Roskilde, Denmark, 6-7th of December 2012
Available from: 2012-12-13 Created: 2012-12-13 Last updated: 2016-04-27Bibliographically approved

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Karlsson, StefanJonson, BoJohansson, MarieEnquist, Bertil

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf