Presentation Fabrication of Tungsten and Carbon Clad Plates by Sinter Bonding Methods for Divertor System Characterization

岸本, 弘立  ,  朝倉, 勇貴  ,  中里, 直史  ,  福本, 正勝

Full tungsten divertor is employed for ITER, and the tungsten will be the most potential candidate for the surface material of plasma facing components in fusion reactor after DEMO. Because it will take some time to build ITER and to establish experiments, a satellite Tokamak JT-60SA will investigate many factors and issues relating to the fusion plasma and components. An important issue is the interaction of plasma and tungsten on the divertor surface. JT60SA has carbon fiber reinforced carbon composite (CFC) divertor with cassette system which is machinery to exchange the divertor. JT-60SA is expected to be able to investigate the interaction of tungsten on divertor and plasma. Because the transport capability of cassette is limited, the full tungsten divertor cannot be used for JT60SA. A clad plate of tungsten and CFC which will be lighter and have good thermal conductivity is a desirable option to establish the issue. Normally it is not easy to join the tungsten and carbon by a diffusion bonding. Present paper researches production methods of the W/CFC clad plates and investigates the mechanical, microstructural and thermal properties of them.
13th International Symposium on Fusion Nuclear Technology

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