Experience with boron-carbide coated target tiles in JET

Three graphite tiles coated with B 4C were mounted in the X-point strike region of JET during operations in 1991. The coatings remained adherent, though areas reached temperatures at which local melting occurred. Boron and deuterium analyses in the area surrounding the tiles suggest sublimation of b...

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Bibliographic Details
Published in:Journal of nuclear materials 1993-05, Vol.200 (3), p.389-394
Main Authors: Coad, J.P., Farmery, B., Linke, J., Wallura, E.
Format: Article
Language:English
Subjects:
Applied sciences
Controled nuclear fusion plants
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Installations for energy generation and conversion: thermal and electrical energy
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Summary:Three graphite tiles coated with B 4C were mounted in the X-point strike region of JET during operations in 1991. The coatings remained adherent, though areas reached temperatures at which local melting occurred. Boron and deuterium analyses in the area surrounding the tiles suggest sublimation of boron was an important release mechanism, and that the region between the strike zones (the private flux region) is a major redeposition area.
ISSN:0022-3115
1873-4820
DOI:10.1016/0022-3115(93)90315-P