The development and maturation of the silicon carbide fiber-reinforced silicon carbide matrix (SiC/SiC) composite system for fusion applications has seen the evolution from fundamental development and understanding of the material system and its behavior in a hostile irradiation environment to the current effort which essentially is a broad-based program of technology, directed at moving this material class from a laboratory curiosity to an engineering material. This paper lays out the recent international scientific and technological achievements in the development of SiC/SiC composite material technologies for fusion application and will discuss future research directions. It also reviews the materials system in the larger context of progress to maturity as an engineering material for both the larger nuclear community and for general engineering applications.

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Tribological test was carried out using a pin-on-disc geometry with fabricated SKD11 pin on bearing steel disc, under sliding in paraffin oil. Fabrication has been made with various angles and widths of crosshatch pattern. The effects of geometrical parameters on friction were mainly examined in mixed and elastohydrodynamic lubrication. The result shows that friction control could achieve by fabricating micro-grooved crosshatch pattern on contact surface. It is observed that each geometrical parameter of texture influence on friction, especially decrease of groove aspect ratio and increases of groove sliding length show friction reduction performance. Crucial parameter G l was proposed for micro-grooved crosshatch texture.