FIBER-REINFORCED COMPOSITE MATERIAL, PRODUCTION THEREOF AND MEMBER USING THE SAME

摘要

PURPOSE:To safely obtain a fiber-reinforced composite material having a high strength and toughness without causing pollution by compounding an inorganic fiber bundle with ceramics or a metal and reinforcing the ceramics or metal therewith. CONSTITUTION:This fiber-reinforced composite material is obtained by selecting an inorganic fiber bundle which is a fiber group of >=20 oriented fibers having >=0.05mm diameter of the fiber bundle within the range expressed by the formula [D is the diameter (mm) of the fiber bundle; D'=(0.011V-0.023)XDELTAalphaX10<6> (V is 3-30) or D'=(0.0375V-0.818)XDELTAalphaX10<6> (V is 30-60); V is the content (vol.%) of the fiber bundle; Aa is the difference in thermal expansion coefficient between the matrix ceramics and the fiber bundle (/ deg.C)] and >=1200 aspect ratio from inorganic fiber bundles, then blending the resultant inorganic fiber bundle having af thermal expansion coefficient with ceramics having a. thermal expansion coefficient to be a matrix so as to provide alpham>alphaf, forming the resultant blend and solidifying the formed blend. The obtained fiber-reinforced composite material is used to produce gas turbine parts, etc.