Author/Authors :
Tokunaga، نويسنده , , K and Yoshida، نويسنده , , N and Kubota، نويسنده , , Y and Noda، نويسنده , , N and Imamura، نويسنده , , Y and Oku، نويسنده , , T and Kurumada، نويسنده , , A and Sogabe، نويسنده , , T and Kato، نويسنده , , T and Plِchl، نويسنده , , L، نويسنده ,
Abstract :
CX-2002U and IG-43OU coated by VPS-W were developed to be as a light high-Z plasma-facing material. After brazing them on OFHC blocks using a Ti foil, their thermal response and thermal fatigue properties were examined with active cooling. No cracks and no exfoliation occurred on the W surface and the braze interface even after 160 cycles of heat load for 20 s at 10 MW/m2. This result indicates that the Ti-brazing is a possible alternative to Ag-brazing for joining carbon to Cu. Heat load resistance of the VPS-W coated CX-2002U/OFHC was much better than the VPS-W coated IG-430U/OFHC due to the excellent thermal conductivity of CX-2002U. VPS-W coated CFC/OFHC is a potential candidate for a high heat resistance armor material on plasma facing components.
