摘要:
A ceramic matrix composite component (10) coated with environmental barrier coatings includes a substrate (12) formed of a silicide-containing ceramic matrix composite, a silicon carbide layer (14) deposited on a surface of the substrate (12), a silicon layer (16) deposited on a surface of the silicon carbide layer (14), a mixed layer (18) made of a mixture of mullite and ytterbium silicate and deposited on a surface of the silicon layer (16), and an oxide layer (20) deposited on a surface of the mixed layer (18).
摘要:
A device of executing vacuum processing on a reinforcement fiber has a chamber capable of keeping the chamber as a whole in a depressurized state; a feeding roller so disposed as to hang the reinforcement fiber down in the chamber; a processor so disposed in the chamber as to pass the reinforcement fiber hung down in the chamber through the processor; a capture device so disposed as to capture and keep a leading end of the reinforcement fiber passing the processor and vertically falling down in place; a winding bobbin configured to wind the reinforcement fiber processed by the processor; and a resilient cord withdrawn in synchronism with the winding bobbin from a first position where the resilient cord surrounds the leading end kept in place by the capture device to a second position where the resilient cord gets in contact with and leads the reinforcement fiber to the winding bobbin.
摘要:
Provided is a method of producing a silicon compound material, including the steps of: storing a silicon carbide preform in a reaction furnace; supplying a raw material gas containing methyltrichlorosilane to the reaction furnace to infiltrate the preform with silicon carbide; and controlling and reducing a temperature of a gas discharged from the reaction furnace at a predetermined rate to subject the gas to continuous thermal history, to thereby decrease generation of a liquid or solid by-product derived from the gas.