| 摘要 |
PURPOSE:To obtain the title material outstanding in strength and wear resistance, with fine crack development prevented, by carbonization treatment, etc., of a form with a polycyclic condensed aromatic resin as the matrix incorporated with reinforcing fiber which has been produced by heat treatment of a specific infusibilized organic fiber in a non-oxidative atmosphere. CONSTITUTION:First, a reinforcing fiber with a molar ratio H/C=0.02-0.7 is produced by heat treatment at 350 to 800 deg.C in a non-oxidative atmosphere of an infusibilized organic fiber which has been formed by spinning a mesophase pitch selected from petroleum and coal-based pitches and polycondensed aromatic hydrocarbon-based synthetic pitches followed by infusibilization. Secondly, this reinforcing fiber is incorporated into the matrix consisting of at least one kind of polycyclic condensed aromatic(COPNA) resin selected from petroleum-, coal- and lignin-based pitches and aromatic-based synthetic pitches followed by forming. Finally, the resultant form is put to carbonization treatment while heating to increase temperature, in a non-oxidative atmosphere, from room temperature to 920 deg.C at a specified rate (e.g., ca. 20-300 deg.C/hr.) and furthermore, if needed, followed by graphitization at ca. <=3,000 deg.C in the same atmosphere. |
