Viscoelastic Properties of Ceria Gel

Abstract:

Article Preview

The viscoelastic behavior of different ceria gelling systems prepared through sol-gel transition were investigated by the rheological measurement. The gelation time was observed by the frequency independence of tand, and increased with increasing acid:alkoxide molar ratio. At the gel point, both storage and loss moduli (G’µ wn, G” µ wn)exhibited a power law dependence of applied frequency with n’ = n” = n. The viscoelastic exponents and gel strength parameter were dependent on the composition of system. The increase in HCl:alkoxide molar ratio increased the n value while decreased the S parameter.

Info:

Periodical:

Materials Science Forum (Volumes 480-481)

Edited by:

A. Méndez-Vilas

Pages:

355-360

DOI:

10.4028/www.scientific.net/MSF.480-481.355

Citation:

N. Phonthammachai et al., "Viscoelastic Properties of Ceria Gel", Materials Science Forum, Vols. 480-481, pp. 355-360, 2005

Online since:

March 2005

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.