Fabrication and testing of W7-X pre-series target elements

被引:6
作者
Boscary, J. [1 ]
Boeswirth, B.
Greuner, H.
Grigull, P.
Missirlian, M.
Plankensteiner, A.
Schedler, B.
Friedrich, T.
Schlosser, J.
Streibl, B.
Traxler, H.
机构
[1] Max Planck Inst Plasma Phys, EURATOM Assoc, D-85748 Garching, Germany
[2] EURATOM, Max Planck Inst Plasmaphys, D-17491 Greifswald, Germany
[3] CEA Cadarache, EURATOM Assoc, CEA, F-13108 St Paul Les Durance, France
[4] Plansee SE, Ctr Technol, A-6600 Reutte, Austria
关键词
D O I
10.1088/0031-8949/2007/T128/037
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The assembly of the highly-loaded target plates of the WENDELSTEIN 7-X (W7-X) divertor requires the fabrication of 890 target elements (TEs). The plasma facing material is made of CFC NB31 flat tiles bonded to a CuCrZr copper alloy water-cooled heat sink. The elements are designed to remove a stationary heat flux and power up to 10 MW m(-2) and 100 kW, respectively. Before launching the serial fabrication, pre-series activities aimed at qualifying the design, the manufacturing route and the non-destructive examinations (NDEs). High heat flux (HHF) tests performed on full-scale pre-series TEs resulted in an improvement of the design of the bond between tiles and heat sink to reduce the stresses during operation. The consequence is the fabrication of additional pre-series TEs to be tested in the HHF facility GLADIS. NDEs of this bond based on thermography methods are developed to define the acceptance criteria suitable for serial fabrication.
引用
收藏
页码:195 / 199
页数:5
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