Abstract
Ceramic composites as candidate materials for plasma facing components were developed by hot isostatic pressing of SiC, B 4C, TiC and C powders. Energy densities similar to those expected during disruptions in ITER were applied to these composites by using the electron beam facility JUDITH in the KFA. The experimental energy densities range from 2 to 80 MJ/m 2 and pulse durations from 5 to 25 ms. Erosion losses as a function of energy density and material composition have been evaluated. Surface temperature response have been measured by using a special pyrometer. An analytical model based on the balance of heat fluxes has been developed to estimate the erosion losses. Correlation of experimental and simulation results for material erosion gave hints to further optimisations.
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