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Hardness, elastic modulus and refractive index of oxynitride glasses prepared from woody biofuel ashes
Linnaeus University, Faculty of Technology, Department of Built Environment and Energy Technology. (Glass group)
Jönköping University.
Jönköping University.
Linnaeus University, Faculty of Technology, Department of Built Environment and Energy Technology. (Glass group)
2017 (English)In: Physics and Chemistry of Glasses - European Journal of Glass Science and Technology Part B, ISSN 1753-3562, Vol. 58, no 6, p. 231-236Article in journal (Refereed) Published
Abstract [en]

This paper reports the hardness, elastic modulus and refractive index values of the oxynitride glasses prepared from woody biofuel ashes. The glasses were prepared in nitrogen atmosphere at 1350–1500°C with addition of Ca metal as a precursor to the extra addition of this modifier. The glasses were homogenous, but appeared translucent grey to black. They contained up to 23 eq% of Ca and 5 eq% of N. The glass densities vary slightly between 2.76 to 2.92 g/cm3. The molar volume and compactness values vary between 8.01 cm3/mol to 8.31 cm3/mol and 0.446 to 0.462 respectively. Mechanical properties like hardness and reduced elastic modulus show values, up to 10 and 105 GPa, respectively. These properties are strongly correlated with the amount of N in the glass. The refractive index (1.54–1.75) increases with increasing N and Ca contents.

Place, publisher, year, edition, pages
Society of Glass Technology , 2017. Vol. 58, no 6, p. 231-236
National Category
Ceramics
Research subject
Natural Science
Identifiers
URN: urn:nbn:se:lnu:diva-71746DOI: 10.13036/17533562.58.6.039OAI: oai:DiVA.org:lnu-71746DiVA, id: diva2:1192500
Available from: 2018-03-22 Created: 2018-03-22 Last updated: 2018-03-26Bibliographically approved

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Ali, SharafatJonson, Bo

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CiteExportLink to record
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Citation style
  • apa
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  • ieee
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  • vancouver
  • Other style
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Language
  • de-DE
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  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf