METHOD FOR PREPARING C/C-SIC COMPOSITE MATERIAL PART AND PRODUCT THEREOF

摘要

Disclosed is a method for preparing a C/C-SiC composite material part and a product thereof. The method comprises the following steps: (a) preparing a carbon fibre/phenolic resin composite powder by a solvent evaporation method; (b) according to a three-dimensional model of the part, moulding the carbon fibre composite powder into an initial moulded blank by means of a 3D printing process; (c) subjecting the initial moulded blank to a primary densification treatment to obtain a C/C porous body; (d) subjecting the C/C porous body to a molten siliconizing reaction, a high-temperature desilication and a secondary densification, to obtain the final C/C-SiC part. By means of the method, a C/C-SiC composite material part with a complex structure can be moulded, with a short production cycle and low costs, and the resulting C/ C-SiC composite material part has a low residual silicon content and excellent performance.