HEAT-RECEIVING PLATE MATERIAL PRODUCED BY USING CARBON FIBER-REINFORCED CARBON COMPOSITE MATERIAL AND ITS PRODUCTION

摘要

PURPOSE:To improve the thermal stress-relaxation characteristics and thermal conductivity of a heat-receiving plate by combining a carbon fiber-reinforced carbon composite material (C/C composite) containing remaining fine pores with a material having high thermal conductivity in such a manner as to continuously change the composition in the boundary layer. CONSTITUTION:Carbon is deposited on carbon fiber by CVD process and/or CVI process to vary the density along the direction of depth from the dense surface to the coarse inner part. A molten material having high thermal conductivity (e.g. Cu) is impregnated in the pores remaining in the inner part to obtain a C/C composite having composition gradient in the boundary layer between the material (Cu) and the carbon. The objective heat-receiving plate has a heat- receiving face composed of the composite and a counterheat-receiving face composed of the highly heat-conductive material (Cu).