[2N13-15] Behavior of Hydrogen Isotope in Fusion Materials

[2N15] Evaluation of deuterium absorption/desorption behavior of graphite -TDS measurement for fine dusts produced by mechanical alloying-

*Yuki Kondo¹, Hisao Atsumi² (1. Kindai University Graduate School , 2. Kindai University Faculty of Science and Engineering)

Keywords:graphite, deuterium, absorption, desorption, PFC, mechanical alloying

Deuterium absorption and desorption behaviors have been investigated on graphite processed with mechanical alloying (MA). The morphology is simulated the carbon dusts produced on inner walls in a fusion reactor, which applies graphite for the plasma facing components. Deuterium was absorbed during the MA treatment, which varied the duration times. In the desorption experiments, TDS of deuterium was measured up to 1720 K, and the correlation with the particle size of carbon dusts was discussed.