Study of Sol-Gel Transition in Ceramic Systems by High Resolution Refractometry
Chapter
Abstract
Sol-gel methods are used to synthesize ceramic oxides for a wide range of applications in coatings, powders and monolithic pieces. The early stages of sol reactions, up to gelation, play an important role in the nanoscale microstructure, morphology and density of gels. This paper presents a recently developed interferometric method. A spectroscopic analysis of interferograms of white light passing through samples of sols, permits the precise measurement of gelation time up to 10 -7 s, and the geometrical positioning of the initial stage of the gel in the solution.
Keywords
Refractive Index Gelation Time Refractive Index Change Exit Plane White Light Interferometry
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References
- 1.Ph. Colomban, Ceramic International 15 (1989) pp 23–50CrossRefGoogle Scholar
- 2.C. J. Blinker and G. W. Scherer “Sol-Gel Science. The Physics and Chemistry of Sol-Gel Processing” Academic Press Inc.(1991) pp 160–216Google Scholar
- 3.N. Bauer et al. Techniques of Organic Chemistry, vol. I: Physical Methods of Organic Chemistry II. ed. A. Weissberger, N. Y.; Interscience (1985) p.1139Google Scholar
- 4.C. Sainz, J. Calatroni and G. Tribillon; Meas.Sci. Tech. 1 (1990) pp356–361CrossRefGoogle Scholar
- 5.G. Tribillon, J. Calatroni and P. Sandoz; Recent Advances in Industrial Optical Inspection. SPIE. July 1990, San Diego, Cal. USAGoogle Scholar
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© Elsevier Science Publishers Ltd 1992