This title appears in the Scientific Report :
2007
Please use the identifier:
http://dx.doi.org/10.1016/j.jnucmat.2007.01.246 in citations.
Tungsten Coatings for the JET ITER-like Wall Project
Tungsten Coatings for the JET ITER-like Wall Project
In the frame of JET's ITER-like wall project for most of the divertor surface tungsten coatings are intended to be employed on bidirectionally carbon fibre reinforced carbon substrates. Since this is thermomechanically rather mismatched, a variety of deposition conditions were considered. Mostl...
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Personal Name(s): | Maier, H. |
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Neu, R. / Greuner, H. / Hopf, Ch. / Matthews, G. F. / Piazza, G. / Hirai, T. / Counsell, G. / Courtois, X. / Mitteau, R. / Gauthier, E. / Likonen, J. / Maddaluno, G. / Philipps, V. / Riccardi, G. / Ruset, C. | |
Contributing Institute: |
Werkstoffstruktur und Eigenschaften; IEF-2 Plasmaphysik; IEF-4 |
Published in: | Journal of nuclear materials, 363-365 (2007) S. 1246 - 1250 |
Imprint: |
Amsterdam [u.a.]
Elsevier Science
2007
|
Physical Description: |
1246 - 1250 |
DOI: |
10.1016/j.jnucmat.2007.01.246 |
Document Type: |
Journal Article |
Research Program: |
Fusion |
Series Title: |
Journal of Nuclear Materials
363-365 |
Subject (ZB): | |
Publikationsportal JuSER |
In the frame of JET's ITER-like wall project for most of the divertor surface tungsten coatings are intended to be employed on bidirectionally carbon fibre reinforced carbon substrates. Since this is thermomechanically rather mismatched, a variety of deposition conditions were considered. Mostly in cooperation with industry, five Euratom associations provided 14 different types of samples with respect to production method and coating thickness. In a step-wise selection procedure, these were subjected to a thermal screening test and a thermal cycling test in the ion beam facility GLADIS as well as to an ELM-like thermal shock test in the electron beam facility JUDITH. A general failure mode is crack formation upon cool-down. Coatings with several microns of thickness show a distinct delamination feature in addition. Further analysis included metallographic investigation, X-ray diffraction for film stress assessment, adhesion testing as well as measurements on the contents of light impurities. (c) 2007 Elsevier B.V. All rights reserved. |