Reactor wall for thermonuclear device

Walls of structures in a thermonuclear reactor undergo irradiation and thermal loads and particle loads by high energy particles from plasmas to cause abrasion in the reactor walls or radiation loss of plasmas. In view of the above, the reactor walls of the present invention are constituted by making the plane of lamination of 2-dimensionally woven carbon fiber composite materials in perpendicular to the heat receiving surface of armors or metallurgically joining the carbon fiber composite materials and heat sink members so as to intersect the plane of the lamination. Since the lamination surface of the armor made of 2-dimensionally woven carbon fiber composite material is in parallel with the macro view stream of heat in the armors, there is no greater temperature difference between adjacent laminations. In addition, since the heat conductivity is high in the direction in parallel with the lamination phase of the carbon fiber composite material, the temperature increase at the face of the armor is reduced with identical amount of input heat to reduce the abrasion by sublimation. Further, since they are metallurgically joined with heat sink members, no large residual stresses remain after the joining. (K.M.)