Nonexponential dynamics in porous glasses

A. Gutina*, E. Rysiakiewicz-Pasek, Yu Feldman

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The dielectric relaxation properties of porous glasses prepared from sodium borosilicate glasses are studied by dielectric spectroscopy over a wide range of frequencies (20 Hz-1 MHz) and temperatures (-100-300°C). The dielectric behavior reflecting the geometric disorder is analyzed within the models describing the non-Debye slowly damped dynamics. It is found that the dielectric response is very sensitive to microstructural and mesostructural features of the porous matrix and the properties of a material filling pores. The response contains information on the dynamics of water molecules in pores, which accounts for the interaction of these molecules with the pore surface.

Original languageEnglish
Pages (from-to)394-399
Number of pages6
JournalGlass Physics and Chemistry
Volume27
Issue number4
DOIs
StatePublished - Jul 2001

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