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Shikama, Tatsuo*; Knitter, R.*; Konys, J.*; Muroga, Takeo*; Tsuchiya, Kunihiko; M
slang, A.*; Kawamura, Hiroshi; Nagata, Shinji*
Fusion Engineering and Design, 83(7-9), p.976 - 982, 2008/12
Times Cited Count：40 Percentile：89.98(Nuclear Science & Technology)Functional materials should play an important role not only in ITER but also in fusion machines beyond ITER, though it is occasionally claimed that future fusion plants should have much more simple structures and they should be free from auxiliary systems such as diagnostics. Studies on test blanket modules (TBM) clearly show the importance of functional materials there. The paper will review the present status of studies and developments of functional ceramics for nuclear fusion applications, with a perspective on their application in electric-power generating fusion power plant, namely DEMO.
Hayashi, Kimio; Nakajima, Noriyoshi*; Clement Lorenzo, S.*; Baluc, N.*; Nishitani, Takeo; Yamanishi, Toshihiko; Morono, A.*; Hernandez, T.*; Moriani, A.*; Tosti, S.*; et al.
no journal, ,
The DEMO R&D activities are intended to support the design activities of fusion demonstration reactor (DEMO) in the Broader Approach (BA). Recent progress in the DEMO R&D activities, particularly the status and plan for EU/JA collaboration activities, is presented in this conference. Equipment for investigation of the erosion /corrosion behavior of SiC/SiC composites in Pb-
Li is under fabrication for installation and experiments at the Rokkasho site. Irradiation of reduced activation ferritic /martensitic steels (EUROFER and F82H) in a Belgian reactor, BR2, is being prepared. Exchange of RAFM, neutron multiplier and tritium breeder samples between EU and JA is planned for collaborative characterization. Thus, the R&D activities are being upgraded.
Hayashi, Kimio; Araki, Masanori; Baluc, N.*; Yamanishi, Toshihiko; Nishitani, Takeo; Hernandez, T.*; Morono, A.*; Moriani, A.*; Tosti, S.*; Nozawa, Takashi; et al.
no journal, ,
The Broader Approach (BA) activities have started in mid 2007. The DEMO R&D activities are intended to support the BA activities for design of fusion demonstration reactor (DEMO). The progress so far in the DEMO R&D activities is presented in this conference. Based on the common interest of the EU and Japan towards DEMO, current activities are smoothly proceeding in the following five areas: (1) SiC/SiC composites, (2) Tritium technology, (3) Materials engineering for DEMO blanket, (4) Advanced neutron multiplier, and (5) Advanced tritium breeders. From 2010 these R&D activities will be accelerated, after the preparation of the experimental equipment and facilities is completed.
TiO
and Li
SiO two-phase mixture by emulsion methodHoshino, Tsuyoshi; Suzuki, Tatsuya; Sekiya, Makiko; Kolb, M.*; Knitter, R.*
no journal, ,
Demonstration power plant reactors require advanced tritium breeders with high thermal stability. For the mass production of advanced tritium breeder pebbles, pebble fabrication by the emulsion method is a promising technique. To increase crush load of LiSiO pebble, trial pebble fabrication of LiTiO and LiSiO two-phase mixture by emulsion method was implemented. A prior pebble fabrication process consisted of the preparation of raw materials followed by granulation. The improvement process integrates the preparation and granulation of raw materials. The slurry for the emulsion granulation of LiTiO and LiSiO as a tritium breeder consists of mixtures of LiTiO, LiSiO and LiCO at specific ratios. Subsequently, gel spheres of tritium breeders are fabricated by controlling the relative flow speeds of slurry and oil. The crush load of the obtained sintered LiTiO and LiSiO pebbles were 51-61 N.
