Development of joining technique of tungsten and SiC for fusion/fission reactor components

Abstract

Joint techniques of metal and SiC are important issue of SiC components for energy applications. Tungsten has high strength, high melting point and very closed CTE against SiC, the joint of tungsten and SiC is very attractive. Nano-powder Infiltration and Transition Eutectoid (NITE) method is able to produce dense SiC/SiC composites. The NITE-SIC/SIC composites have high resistant against the pressure, thus, the diffusion bonding method is able to apply the joining of tungsten and SiC. In present research, plates and tubes of joined tungsten and SiC were fabricated and characterized to develop the joining technique of tungsten and SiC.