Bulk-boronized graphites for plasma-facing components in ITER
作者： Y. Hirooka , R. Conn , R. Causey , D. Croessmann , R. Doerner
DOI: 10.1016/0022-3115(90)90092-2
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摘要: Abstract Newly developed bulk-boronized graphites and boronized C-C composites with a total boron concentration ranging from 1 wt% to 30 have been evaluated as plasma-facing component materials for the International Thermonuclear Experimental Reactor (ITER). Bulk-boronized bombarded high-flux deuterium plasmas at temperatures between 200 1600 °C. Plasma interaction induced erosion of is observed be factor 2–3 smaller than that pyrolytic graphite, in regimes physical sputtering, chemical sputtering radiation enhanced sublimation. Postbombardment thermal desorption spectroscopy indicates enhance recombinative deuterium, which leads suppression formation deuterocarbon due sputtering. The tritium inventory graphite has found decrease by an order magnitude 10 bulk-boronization above 1000 critical heat flux induce cracking essentially same non-boronized graphites. Also, hinders air oxidation nearly completely 800° C reduces steam rate around 1100 1350
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