Behavior of SiC/Al coatings under high-dose irradiation with deuterium and helium ions
Aluminium-silicon carbide coatings obtained by vacuum plasma spraying co-deposition are considered as a new class of plasma-facing materials (PFMs) for fusion devices. The technical requirements for PFMs are stringent as they have to withstand severe operation conditions, including bombardment by high fluxes of particles escaping from the plasma. This paper describes the characterisation of vacuum plasma sprayed Al/SiC layers in the initial state and after irradiation with low-energy deuterium or MeV helium-4 ions. Both deuterium and helium ions are expected to interact with plasma-facing components in controlled fusion devices. The aim of the investigation was to identify: (i) the surface structure and composition of the layers; (ii) the deuterium retention in the materials after irradiation under different conditions; (iii) the radiation damage produced by deuterium and helium ions.
Bibliographic Reference: Report: RT/ERG/FUS/93/03 EN (1993) 18 pp.
Availability: Available from Servizio Studi e Documentazione, ENEA, Centro Ricerche Energia Frascati, C.P. 65-00044 Frascati, Roma (IT)
Record Number: 199311670 / Last updated on: 1994-11-28
Original language: en
Available languages: en