PRODUCTION OF FIBER-REINFORCED CERAMIC-BASED COMPOSITE MATERIAL

摘要

PROBLEM TO BE SOLVED: To efficiently produce a composite material having a high fracture energy without providing a heat damage to a reinforcing fiber at a short time by thermally spraying a ceramic material to the reinforcing fiber previously arranged in a prescribed position or shape to form a ceramic mother phase. ;SOLUTION: A carbon fiber, a ceramic fiber, a metal fiber or the like is oriented in uniaxial one dimensional, or two or more multiaxial two dimensional orientation to provide a reinforcing fiber. The reinforcing fibers are arranged on a metallic substrate, and a ceramic material such as an oxide ceramic such as alumina is thermally sprayed thereon. The thermally sprayed material in a molten state at a high temperature is quenched on the reinforcing fibers and accumulated to form a ceramic mother phase. Any of a plasma spraying, a glass-field flame spraying, a high-velocity flame spraying, an explosion spraying and a wire explosion spraying are suitable for the thermal spray method. A plurality of composite layers formed by repeating the method to laminate the layers and having a prescribed thickness is taken out from the substrate, and subjected to a necessary heat treatment and machine work to provide the objective fiber-reinforced ceramic-based composite material.;COPYRIGHT: (C)1999,JPO