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Optimization of Sol-Gel Film Properties

Published online by Cambridge University Press:  25 February 2011

Sharon M. Melpolder  and
Bradley K. Coltrain
Sharon M. Melpolder
Affiliation:
Eastman Kodak Company, Corporate Research Laboratories, Rochester, NY 14650.
Bradley K. Coltrain
Affiliation:
Eastman Kodak Company, Corporate Research Laboratories, Rochester, NY 14650.
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Abstract

The preparation and characterization of organic-modified and organic/ iorganic-modified silica sol-gel spin-coated thin films is presented as a function of thermal processing. The ability to alter the film's final refractive index, thermal expansion coefficient and the polar contribution to the film's surface energetic term is reported. The stability of the coating solution at elevated temperatures was studied by analyzing changes in molecular weight, viscosity and particle size during the sol-to-gel transition. Control of the sol-gel thin film properties allows the design of a film/substrate interface where both thermal mismatches and surface energetic differences are minimized. Decreased stresses should be induced during processing, resulting in increased adhesion between the coating and the substrate.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 121: Symposium H – Better Ceramics Through Chemistry III , 1988 , 811
Copyright
Copyright © Materials Research Society 1988

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References

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