Development of Carbon Based Plasma Facing Components for Steady State Operation of the Fusion Devices in China

摘要: In recent years, a series of multi-element doped graphite materials has been developed for PFC (plasma facing components) in China. Detailed investigation the composition and full characterization microstructure were carried out last several years are now still progress. These research activities mainly concentrated on (B, Si, Ti) thick gradient SiC coatings. Investigations applicability as under high heat flux, further evaluation HT-7 limiter plasma irradiation have carefully investigated. From 0.3 m2 poloidal to 1.2 new belt plus two limiters with actively water-cooled, this changes carbon device turned be very successful. The performance significantly improved longest discharge duration more than 60 s. results demonstrated that armoured PFCs will an attractive choice making them competitive other candidate first wall steady state fusion devices.