Non-Newtonian viscous flow in soda-lime-silica glass at forming and annealing temperatures

Joseph H. Simmons, Romulo Ochoa, Kelly D. Simmons, John J. Mills

Research output: Contribution to journalArticlepeer-review

84 Scopus citations


Viscous flow was measured at high shear rates by fiber elongation and cone-plate rheometry. Non-Newtonian viscosity data were taken from 106 to 1014 P between 533 and 810°C on 2 soda-line-silica glasses of similar composition. The results show that the viscosity shear thinning effect can be scaled to a universally applicable behavior by assuming that the glass has a temperature-dependent limiting strength which decreases with the viscosity. This weakening of the structure with increasing temperature results in the appearance of shear thinning effects at lower strain rates than predictedby relaxation time scaling alone.

Original languageEnglish (US)
Pages (from-to)313-322
Number of pages10
JournalJournal of Non-Crystalline Solids
Issue number3
StatePublished - Nov 1988
Externally publishedYes

ASJC Scopus subject areas

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


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