Purity and radioactive decay behaviour of industrial 2D-reinforced SiCf/SiC composites

Microstructure of heavily neutron-irradiated SiC after annealing up to 1500°C

“…Besides its low activation and quick decay of activity, silicon carbide (SiC) has excellent behavior such as an low atomic number material, good thermal conductivity, excellent high-temperature properties and corrosion resistance [1][2][3][4][5]. Recently, a high-crystalline and stoichiometric SiC fiber and an advanced fabrication method have led to great improvement in SiC/SiC composites [6][7][8], based on the same hot-press technique previously reported by the present authors [9][10][11][12].…”

Reaction sintering of two-dimensional silicon carbide fiber-reinforced silicon carbide composite by sheet stacking method

“…Continuous two-dimensionally (2D) woven SiC fiber-reinforced SiC matrix composite (SiC/SiC) is one of the most attractive materials for future fusion reactors since it has low induced radioactivity, quick decay of activity, low after heat, low atomic number, good fracture resistance, excellent high-temperature mechanical and thermal properties and corrosion resistance [1][2][3][4][5][6]. Furthermore, SiC shows good resistance to high energy neutron irradiation up to very high neutron fluences [7][8][9][10][11].…”

Waste management for JAERI fusion reactors

“…Recent studies in waste management have focused on a minimization of the radiotoxicity and a reduction of the volume of the radioactive waste, attempting to find a solution by introducing the concept of 'clearance', by recycling of radioactive waste under regulatory control and by eliminating detrimental impurities in material [1][2][3][4][5][6][7][8]. Our research reported in this article is on common ground with these ideas.…”