Technical Advancement in Fabricating Dispersion Strengthened Copper Alloys by Mechanical Alloying and Hot Isostatic Pressing for Application to Divertors of Fusion Reactors
National Institute for Fusion Science (NIFS) launched in 2014 a research program for developing Dispersion Strengthened (DS) Cu alloys for application to the heat sink materials of divertors of fusion reactors, using newly installed ball-milling, encapsulation, and Hot Isostatic Pressing (HIP) facilities. A unique feature of these facilities is that the entire process can be performed without exposing the materials to air, enabling precise impurity control. Cu-Al, Cu-Zr and Cu-Y alloys have been produced in this program. Various technological advancement has been made for the fabrication, such as suppression of powder adhesion to the wall of containers during the ball milling, and encapsulation technology including development of small volume tubular capsules.
机构:
Nagoya Univ, Grad Sch Engn, Chikusa Ku, Nagoya, Aichi 4648601, Japan
Nippon Steel & Sumitomo Met Corp, Tokyo, JapanNatl Inst Fus Sci, Toki, Gifu 5095292, Japan
机构:
Nagoya Univ, Grad Sch Engn, Chikusa Ku, Nagoya, Aichi 4648601, Japan
Nippon Steel & Sumitomo Met Corp, Tokyo, JapanNatl Inst Fus Sci, Toki, Gifu 5095292, Japan