METHOD OF MAKING ARTICLES FROM COMPOSITE MATERIAL Russian patent published in 2015 - IPC C04B35/577 C04B35/573 

FIELD: chemistry.

SUBSTANCE: method includes forming a pyrocarbon coating on heat-resistant fibres of a three-dimensional frame, impregnating the frame with a suspension of fine carbon filler having higher chemical activity than pyrocarbon, impregnating the frame with siloxane binder, moulding a plastic workpiece, heat treatment thereof and siliconising. According to the disclosed engineering solution, the pyrocarbon coating has thickness of 1-3 mcm; the fine filler is fed into the pores of the frame such that the pore size of the frame is not greater than 10 mcm; heat treatment of the plastic workpiece is carried out at 1200-1400°C in a vacuum or at atmospheric pressure in the medium of an inert gas, and siliconisation is carried out in a vacuum using a vapour-liquid phase method by capillary condensation of silicon vapour.

EFFECT: high reliability of articles made of composite materials in mechanical loading conditions at high temperatures, without considerable complication of the manufacturing of the articles, primarily large-size and thin-walled articles.

11 ex, 1 tbl