THERMAL AND VIBRATIONAL PROPERTIES OF SILICA XEROGELS

Authors
FONTANA A ROSSI F CARINI G DANGELO G TRIPODO G BARTOLOTTA A
Citation
A. Fontana et al., THERMAL AND VIBRATIONAL PROPERTIES OF SILICA XEROGELS, Philosophical magazine. B. Physics of condensed matter.Statistical mechanics, electronic, optical and magnetic, 77(2), 1998, pp. 333-340
Citations number
11
Categorie Soggetti
Physics, Applied",Mechanics,"Physics, Condensed Matter","Material Science
Journal title
Philosophical magazine. B. Physics of condensed matter.Statistical mechanics, electronic, optical and magnetic → ACNP
ISSN journal
13642812
Volume
77
Issue
2
Year of publication
1998
Pages
333 - 340
Database
ISI
SICI code
1364-2812(1998)77:2<333:TAVPOS>2.0.ZU;2-0
Abstract
The structure and the dynamics of silica sol-gel samples have been stu died by means of Brillouin and Raman scattering, and specific heat exp eriments. The results are compared with those of xerogel glasses and a morphous silica, obtained by thermal treatment and by melt quenching r espectively. Increasing the treatment temperatures produces progressiv e densification of the xerogel systems, whose dynamics and calorimetri c properties are analysed for a wide range of temperatures.