| abstract |
The present invention relates to a method for producing a high density silicon carbide fiber-reinforced silicon carbide composite material, specifically, to minimize the amount of sintering additives and to alternately laminate a silicon carbide tape and a silicon carbide fabric woven from silicon carbide fibers to produce a molded article. Step (step 1); And a step (step 2) of sintering the molded body prepared in step 1 above.n n n In the manufacturing method according to the present invention, a high density silicon carbide fiber-reinforced silicon carbide composite material having a porosity of less than 2% can be prepared using a sintering additive having a content of less than 7%, and the strength of the manufactured composite material is 400. Since it is very excellent above MPa, it can be usefully used as a high temperature heat exchanger, a combustor inner wall material, a blanket structural material of a fusion reactor, and the like. |