| Autor: |
Richard G. Castro, David S. Walsh, P.W. Stanek, Robert D. Watson, Dennis L. Youchison, K.E. Elliott |
| Rok vydání: |
2002 |
| Předmět: |
|
| Zdroj: |
Proceedings of 16th International Symposium on Fusion Engineering. |
| DOI: |
10.1109/fusion.1995.534247 |
| Popis: |
Plasma-spray technology is under investigation as a method for producing high thermal conductivity beryllium coatings for use in magnetic fusion applications. Recent investigations have focused on optimizing the plasma-spray process for depositing beryllium coatings on damaged beryllium surfaces. Of particular interest has been optimizing the processing parameters to maximize the through-thickness thermal conductivity of the beryllium coatings. Experimental results will be reported on the use of secondary H/sub 2/ gas additions to improve the melting of the beryllium powder and negative transferred-arc cleaning to prepare beryllium surfaces prior to depositing beryllium. Information will also be presented on thermal fatigue tests which were performed on beryllium coated ISX-B beryllium limiter tiles using 10 sec cycle times with 60 sec cooldowns and an International Thermonuclear Experimental Reactor (ITER) relevant divertor heat flux slightly in excess of 5 MW/ml. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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