Resistance of carbon-based materials for the ITER divertor under different radiation fluxes

Investigation results on the resistance of a number of carbon-based materials i.e. graphite and C/C composites under intensive ion, electron, and neutron fluxes are presented. Main physico-mechanical characteristics of candidate materials are given. Comparative data on resistance to high-dose (10 ex...

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Bibliographic Details
Published in:Journal of nuclear materials 1992-09, Vol.191-194, p.309-314
Main Author: BURTSEVA, T
Format: Article
Language:English
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Summary:Investigation results on the resistance of a number of carbon-based materials i.e. graphite and C/C composites under intensive ion, electron, and neutron fluxes are presented. Main physico-mechanical characteristics of candidate materials are given. Comparative data on resistance to high-dose (10 exp 22 cm exp --2 ) ion erosion in a magnetron-type gas discharge have been obtained. Electron fluxes of different power (q - 1-10 kW/cm exp 2 ) have been used for comparative study of thermal shock resistance of different materials. To simulate thermal impact of the thermal phase of current disruption in ITER, the pulse electron beam and plasma flux have been used. Data on thermal erosion and cracking resistance have been obtained. The investigation results on the impact of low-dose (D = 10 exp 19 --10 exp 20 cm exp --2 ) neutron irradiation on thermal conductivity are also presented. Conclusions on promising applications of the materials for the ITER divertor have been made.
ISSN:0022-3115
DOI:10.1016/0022-3115(92)90776-H