Effect of the sol temperature on the structure and thickness of the SiO2 coating of carbon fibers

Abstract

This paper deals with the development of carbon fiber coatings that act as diffusion barrier, and the role of the weak boundaries in the metal matrix composites. The developed coating will be a cost effective alternative to CVD-coatings. The paper considers the temperature dependence of the structure of SiO2-sol and the coating thickness on the surface of the carbon fibers formed by sol-gel method. Detected sol temperature range optimum for coating. Possible reasons for the observed phenomena are proposed.