Composition-structure-property relationships in boroaluminosilicate glasses

Qiuju Zheng, Marcel Potuzak, John Mauro, Morten M. Smedskjaer, Randall E. Youngman, Yuanzheng Yue

Research output: Contribution to journalArticle

63 Scopus citations

Abstract

The complicated structural speciation in boroaluminosilicate glasses leads to a mixed network former effect yielding nonlinear variation in many macroscopic properties as a function of chemical composition. Here we study the composition-structure-property relationships in a series of sodium boroaluminosilicate glasses from peralkaline to peraluminous compositions by substituting Al 2O 3 for SiO 2. Our results reveal a pronounced change in all the measured physical properties (density, elastic moduli, hardness, glass transition temperature, and liquid fragility) around [Al 2O 3]-[Na 2O] = 0. The structural origin of this change is elucidated through nuclear magnetic resonance analyses and topological considerations. Furthermore, we find that addition of 1 mol% Fe 2O 3 exerts a complicated impact on the measured properties.

Original languageEnglish (US)
Pages (from-to)993-1002
Number of pages10
JournalJournal of Non-Crystalline Solids
Volume358
Issue number6-7
DOIs
StatePublished - Apr 1 2012

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry

Cite this