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The Influence of Interface Characteristics on the Adhesion of Plasma Sprayed Tungsten Coatings(14thPFMC)
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SYSNO ASEP 0422732 Document Type O - Others R&D Document Type Others Title The Influence of Interface Characteristics on the Adhesion of Plasma Sprayed Tungsten Coatings(14thPFMC) Author(s) Matějíček, Jiří (UFP-V) RID, ORCID
Vilémová, Monika (UFP-V) RID, ORCID
Mušálek, Radek (UFP-V) RID, ORCIDYear of issue 2013 Language eng - English Country DE - Germany Keywords Plasma facing materials ; tungsten ; adhesion ; PVD interlayer ; tokamak Subject RIV JK - Corrosion ; Surface Treatment of Materials R&D Projects GAP108/12/1872 GA ČR - Czech Science Foundation (CSF) FR-TI2/702 GA MPO - Ministry of Industry and Trade (MPO) Institutional support UFP-V - RVO:61389021 Annotation Předneseno:14th International Conference on Plasma-Facing Materials and Components for Fusion Applications, Juelich, 13.05.-17.05.2013, Tungsten is the prime candidate material for plasma facing components of future fusion devices.Plasma spraying,with its ability to coat large areas, including non-planar surfaces,with significant thickness,is a prospective fabrication technology for components subject to moderate heat loads,e.g. the first wall of DEMO.The functionality of such coatings is critically dependent on their adhesion to the underlying material. This in turn,is influenced by a variety of processing-related factors,chief among them being the state of the interface.In this study,the effects of two factors – surface roughness and the presence of thin interlayer–were investigated.Two different levels of roughness of steel substrates were induced by grit blasting,and two thin interlayer–Ti and W–were applied by physical vapour deposition prior to plasma spraying W by a WSP torch. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2014
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