Paper Title:
Viscoelastic Properties of Ceria Gel
  Abstract

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, M. Rumruangwong, S. Jitkanka, E. Gulari, A. M. Jamieson, S. Wongkasemjit, "Viscoelastic Properties of Ceria Gel", Materials Science Forum, Vols. 480-481, pp. 355-360, 2005
Online since
March 2005
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