Author/Authors :
Khirwadkar، نويسنده , , S.S. and Singh، نويسنده , , K.P. and Y.Patil and Khan، نويسنده , , M.S. and Buch، نويسنده , , J.J.U. and Patel، نويسنده , , Alpesh and Tripathi، نويسنده , , Sudhir and Jaman، نويسنده , , P.M. and Rangaraj، نويسنده , , L. and Divakar، نويسنده , , C.، نويسنده ,
Abstract :
The development of the fabrication technology of macro-brush configuration of tungsten (W) and carbon (graphite and CFC) plasma facing components (PFCs) for ITER like tokamak application is presented. The fabrication of qualified joint of PFC is a requirement for fusion tokamak. Vacuum brazing method has been employed for joining of W/CuCrZr and C/CuCrZr. Oxygen free high conductivity (OFHC) copper casting on W tiles was performed followed by machining, polishing and ultrasonic cleaning of the samples prior to vacuum brazing. The W/CuCrZr and graphite/CuCrZr based test mockups were vacuum brazed using silver free alloys. The mechanical shear and tensile strengths were evaluated for the W/CuCrZr and graphite/CuCrZr brazed joint samples. The micro-structural examination of the joints showed smooth interface. The details of fabrication and characterization procedure for macro-brush tungsten and carbon based PFC test mockups are presented.
Keywords :
tensile strength , Shear strength , Plasma facing component (PFC) , Plasma facing material (PFM) , Vacuum brazing , Micro-structural examination
