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Plasma-induced damage of tungsten coatings on graphite limiters
KTH, Skolan för elektro- och systemteknik (EES), Fusionsplasmafysik. KTH, Skolan för elektro- och systemteknik (EES), Centra, Alfvénlaboratoriet.ORCID-id: 0000-0001-9901-6296
Vise andre og tillknytning
2007 (engelsk)Inngår i: Physica Scripta, ISSN 0031-8949, E-ISSN 1402-4896, Vol. T128, s. 162-165Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Vaccum plasma sprayed tungsten coatings with an evaporated sandwich Re - W interlayer on graphite limiter blocks were studied after the experimental campaign in the TEXTOR tokamak. The coating morphology was modified by high-heat loads and co-deposition of species from the plasma. Co-deposits contained fuel species, carbon, boron and silicon. X-ray diffractometer phase analysis indicated the coexistence of metallic tungsten and its carbides (WC and W2C) and boride (W2B). In the Re - W layer the presence of carbon was detected in a several micrometres thick zone. In the overheated part of the limiter, the Re - W layer was transformed into a sigma phase.

sted, utgiver, år, opplag, sider
2007. Vol. T128, s. 162-165
Emneord [en]
high heat-flux, asdex-upgrade, joint interface, textor, performance, operation, erosion, carbon, cfc
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-25610DOI: 10.1088/0031-8949/2007/T128/031ISI: 000246790200032Scopus ID: 2-s2.0-42349095748OAI: oai:DiVA.org:kth-25610DiVA, id: diva2:370556
Konferanse
11th International Workshop on Plasma-Facing Materials and Components for Fusion Applications Max Planck Inst Plasma Phys, Greifswald Branch, Greifswald, GERMANY, OCT 10-12, 2006
Merknad
11th International Workshop on Plasma-Facing Materials and Components for Fusion Applications. Location: Max Planck Inst Plasma Phys, Greifswald Branch, Greifswald, GERMANY. Date: OCT 10-12, 2006.Tilgjengelig fra: 2010-11-17 Laget: 2010-10-27 Sist oppdatert: 2017-12-12bibliografisk kontrollert

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