Evaluation of W–Si–C thick coating as a plasma facing material

We present tungsten alloy coating of 150–200 μm thickness with improved plasma erosion resistance fabricated by plasma spraying of granular W–SiC composite powders. During increasing the SiC concentration to 8 wt%, we observed the increase in the hardness of the coating from 250 to 440 Hv. The plasm...

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Bibliographic Details
Published in:Journal of nuclear materials 2009-04, Vol.386, p.834-836
Main Authors: Seok, Hyun Kwang, Jung, Kyung Ho, Kim, Yu Chan, Shim, Jae-Hyeok, Kim, Dong-Ik, Han, Seung-Hee, Baik, Kyeong Ho, Cha, Pil-Ryung
Format: Article
Language:English
Subjects:
Applied sciences
Controled nuclear fusion plants
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Fission nuclear power plants
Fuels
Installations for energy generation and conversion: thermal and electrical energy
Nuclear fuels
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Summary:We present tungsten alloy coating of 150–200 μm thickness with improved plasma erosion resistance fabricated by plasma spraying of granular W–SiC composite powders. During increasing the SiC concentration to 8 wt%, we observed the increase in the hardness of the coating from 250 to 440 Hv. The plasma erosion depth of the coating decreased by 10 times compared with pure tungsten in the same erosion environment.
ISSN:0022-3115
1873-4820
DOI:10.1016/j.jnucmat.2008.12.247