Tungsten coating on JET divertor tiles for erosion/deposition studies

被引：36
|
作者：
Lehto, S
Likonen, J
Coad, JP
Ahlgren, T
Hole, DE
Mayer, M
Maier, H
Kolehmainen, J
机构：
[1] EURATOM, VTT Proc, FIN-02044 Espoo, Finland
[2] EURATOM, UKAEA, Abingdon OX14 4DB, Oxon, England
[3] Univ Helsinki, Accelerator Lab, EURATOM Assoc, FIN-00014 Helsinki, Finland
[4] Univ Sussex, Sch Engn, Brighton BN1 9QH, E Sussex, England
[5] EURATOM, Max Planck Inst Plasmaphys, D-85748 Garching, Germany
[6] DIARC Technol Inc, FIN-02200 Espoo, Finland
来源：
FUSION ENGINEERING AND DESIGN | 2003年 / 66-68卷
关键词：
tungsten coating; erosion; deposition; divertor tiles; JET;
D O I：
10.1016/S0920-3796(03)00291-6
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
Six Joint European Torus (JET) divertor tiles were coated with tungsten marker stripes for erosion/deposition studies. The average thickness was 3.4 mum and the film was uniform within 5% across and within 10% along the stripe. Small amounts of impurities C, Fe, Ni and Cr were found and the in-plane stress was 965 MPa. Resistance to high heat loads was tested in the Neutral Beam Test-bed at JET where a coated carbon fibre composite block was exposed to a total of 113 pulses with a maximum peak power density of 15.7 MW m(-2) and a maximum surface temperature of 1280 degreesC. No visible changes as a result of thermal cycling nor sputtering of the film by deuterium could be detected. (C) 2003 Elsevier Science B.V. All rights reserved.
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页码：241 / 245
页数：5
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