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X-ray micro-laminography for the ex situ analysis of W-CFC samples retrieved from JET ITER-like wall
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
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Number of Authors: 11092016 (English)In: Physica Scripta, ISSN 0031-8949, E-ISSN 1402-4896, Vol. T167, article id 014050Article in journal (Refereed) Published
Abstract [en]

x-ray micro-laminography was qualified and implemented as a complementary solution for the 3D microstructural analysis of tungsten coated carbon-fibre reinforced carbon (W/CFC) samples retrieved from JET ITER-like wall. As expected, the W layers spatially correlate with the morphology of the CFC substrate. Three main cases were distinguished; (i) tungsten layers coated parallel to PAN fibre bundles tend to have a quasi-continuous, weakly waved surface (waves amplitude <100 mu m); (ii) tungsten layers coated onto the relatively porous felt region appear to smoothly follow even the surface of the largest pores of around 250 mu m and (iii) samples coated perpendicular to the PAN fibre bundles display frequently and strong crater-like discontinuities of the metal layer. The characteristics dimensions of these gaps range in the order of 300-400 mu m both in the coating plane and perpendicular to it. On some craters the bottom W layer is broken and the generated debris can be found even deeper than one mm into the CFC substrate. These W particles, sized of 20-40 mu m, are always found in the large gaps located between the fibre bundles perpendicular to the coated surface.

Place, publisher, year, edition, pages
2016. Vol. T167, article id 014050
Keywords [en]
x-ray laminography, ITER-like wall, W-CFC
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:uu:diva-400235DOI: 10.1088/0031-8949/T167/1/014050ISI: 000383504700051OAI: oai:DiVA.org:uu-400235DiVA, id: diva2:1384588
Conference
15th International Conference on Plasma-Facing Materials and Components for Fusion Applications (PFMC), MAY, 2015, Aix en Provence, FRANCE
Note

For complete list of authors see http://dx.doi.org/10.1088/0031-8949/T167/1/014050

Available from: 2020-01-10 Created: 2020-01-10 Last updated: 2020-01-10Bibliographically approved

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Andersson Sundén, ErikBinda, FedericoCecconello, MarcoConroy, SeanDzysiuk, NataliiaEricsson, GöranEriksson, JacobHellesen, CarlHjalmarsson, AndersPossnert, GöranSjöstrand, HenrikSkiba, MateuszWeiszflog, Matthias

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Andersson Sundén, ErikBinda, FedericoCecconello, MarcoConroy, SeanDzysiuk, NataliiaEricsson, GöranEriksson, JacobHellesen, CarlHjalmarsson, AndersPossnert, GöranSjöstrand, HenrikSkiba, MateuszWeiszflog, Matthias
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Applied Nuclear Physics
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