This title appears in the Scientific Report :
2009
Please use the identifier:
http://dx.doi.org/10.1016/j.fusengdes.2008.11.049 in citations.
Damage Structure in Divertor Armor Materials Exposed to Multiple ITER Relevant ELM Loads
Damage Structure in Divertor Armor Materials Exposed to Multiple ITER Relevant ELM Loads
The damage threshold and damage mechanisms of divertor armor materials, i.e. CFC and tungsten, were studied under the impact of ITER relevant ELM-like loads. These experiments were carried out in a Quasi-Stationary Plasma Accelerator applying repetitive pulses of 500 mu s up to 100 cycles. CFC showe...
Saved in:
Personal Name(s): | Wittlich, K. |
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Hirai, T. / Compan, J. / Klimov, N. / Linke, J. / Loarte, A. / Merola, M. / Pintsuk, G. / Podkovyrov, V. / Singheiser, L. / Zhitlukhin, A. | |
Contributing Institute: |
Werkstoffstruktur und Eigenschaften; IEF-2 JARA-ENERGY; JARA-ENERGY |
Published in: | Fusion engineering and design, 84 (2009) S. 1982 - 1986 |
Imprint: |
New York, NY [u.a.]
Elsevier
2009
|
Physical Description: |
1982 - 1986 |
DOI: |
10.1016/j.fusengdes.2008.11.049 |
Document Type: |
Journal Article |
Research Program: |
Fusion |
Series Title: |
Fusion Engineering and Design
84 |
Subject (ZB): | |
Publikationsportal JuSER |
The damage threshold and damage mechanisms of divertor armor materials, i.e. CFC and tungsten, were studied under the impact of ITER relevant ELM-like loads. These experiments were carried out in a Quasi-Stationary Plasma Accelerator applying repetitive pulses of 500 mu s up to 100 cycles. CFC showed preferential erosion of the PAN fiber-bundles above 0.6 MJ/m(2) and cracking of pitch fiber-bundles. Tungsten showed cracking already at 0.2 MJ/m(2) and melting at flat surfaces above 1 MJ/m(2). Cracks in tungsten were identified as primary and secondary cracks which all propagated in the vertical direction, which was considered to be less critical. At an energy density of 1.5 MJ/m(2), the melt-layer completely covered the surface and bridged the castellation slots. (C) 2009 Published by Elsevier B.V. |