Influence of temperature on the physical properties of TEOS silica xerogels

In the present paper, the experimental results on the influence of temperature on the physical properties such as bulk density, percentage of porosity, percentage of volume shrinkage and weight loss of silica xerogels, are reported. The xerogels have been prepared by hydrolysis and polycondensation...

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Veröffentlicht in:	Ceramics international 1999-01, Vol.25 (6), p.505-509
Hauptverfasser:	Venkateswara Rao, A., Wagh, P.B., Haranath, D., Risbud, P.P., Kumbhare, S.D.
Format:	Artikel
Sprache:	eng
Schlagworte:	Chemistry Colloidal gels. Colloidal sols Colloidal state and disperse state Exact sciences and technology General and physical chemistry
Online-Zugang:	Volltext
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Zusammenfassung:	In the present paper, the experimental results on the influence of temperature on the physical properties such as bulk density, percentage of porosity, percentage of volume shrinkage and weight loss of silica xerogels, are reported. The xerogels have been prepared by hydrolysis and polycondensation of tetraethoxysilane (TEOS) using a new catalyst (citric acid) followed by drying at ambient temperatures (
ISSN:	0272-8842 1873-3956
DOI:	10.1016/S0272-8842(97)00085-0