Water absorption and mechanical properties of silica porous glasses

Ya O. Roizin, S. A. Gevelyuk, L. P. Prokopovich, D. P. Savin, E. Rysiakiewicz-Pasek, K. Marczuk

Research output: Contribution to journalArticlepeer-review

Abstract

We have estimated the mechanical properties of silica porous glasses (SPG) using special two-layered structures consisting of a SPG layer on a solid glass substrate. These structures turned curved after keeping them in moist atmosphere. The linear dimensions of dry free-standing SPG wafers with the same pore size distribution increased significantly (up to 1.5%) after water vapour soaking. Bending angles of two-layered structures and the values of linear expansions were used to estimate SPG elastic constants and the mechanical stresses arising in porous glasses as the result of water absorption.

Original languageEnglish
Pages (from-to)151-155
Number of pages5
JournalJournal of Porous Materials
Volume4
Issue number3
DOIs
StatePublished - 1997
Externally publishedYes

Keywords

  • Humidity
  • Mechanical stresses
  • Porous glasses

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