Apparent viscosity of sol-gel processed silica

T. A. Gallo, L. C. Klein

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

The densification behavior of a sol-gel processed silica was studied. Thermogravimetric weight loss analysis was used to study dehydration. Gas (He) pycnometry was used to measure skeletal density and to estimate an apparent fictive temperature. Isothermal shrinkage data were used to calculate apparent viscosities. Isothermal changes in apparent viscosity are due to dehydration and skeletal relaxation. Shrinkage data from step heat treatments were used to separate the effects of relaxation from those of dehydration.

Original languageEnglish (US)
Pages (from-to)198-204
Number of pages7
JournalJournal of Non-Crystalline Solids
Volume82
Issue number1-3
DOIs
StatePublished - Jun 1 1986

All Science Journal Classification (ASJC) codes

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

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