PRODUCTION OF ORIENTATIVE SHORT FIBER-REINFORCING COMPOSITE BODY

摘要

PURPOSE:To enable formation of a complex and precise shape and to enhance strength and toughness by laminating or bundling an intermediate molded body consisting of selectively orientated reinforcing short fiber and a molding adjuvant and molding a base material in the obtained molded body. CONSTITUTION:(B) a molding adjuvant which is obtained by adding a high-mol. wt. high viscous component to low-mol.wt. liquid or that consisting of molten wax-based or molten high polymer-based liquid and (C) powder for molding a base material in accordance with necessity are mixed with (A) reinforcing short fiber. Thereafter shearing force is loaded to this mixture from the outside and the component A is selectively orientated to obtain an intermediate molded body. Then this intermediate molded body is laminated or bundled to obtain a conjugated molded body. Thereafter (D) this conjugated molded body is impregnated with a precursor capable of forming the base material in accordance with necessity. The composite body is obtained by forming the base material such as ceramics and an intermetallic compd. in this conjugated molded body by heating and pressurization.