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Atmospheric plasma spraying of functionally graded steel/tungsten layers for the first wall of future fusion reactors
- 1.0503654 - ÚFP 2020 RIV NL eng J - Journal Article
Heuer, S. - Matějíček, Jiří - Vilémová, Monika - Koller, Martin - Illková, Ksenia - Veverka, Jakub - Weber, T. - Pintsuk, G. - Coenen, J.W. - Linsmeier, Ch.
Atmospheric plasma spraying of functionally graded steel/tungsten layers for the first wall of future fusion reactors.
Surface and Coatings Technology. Roč. 366, 25 May 2019 (2019), s. 170-178. ISSN 0257-8972. E-ISSN 1879-3347
R&D Projects: GA ČR(CZ) GA17-13573S; GA ČR(CZ) GA17-23154S
EU Projects: European Commission(XE) 633053 - EUROfusion
Institutional support: RVO:61389021 ; RVO:61388998
Keywords : Atmospheric plasma spraying (APS) * demo * First wall * Functionally graded materials (FGM) * Nuclear fusion * Tungsten-steel composite materials
OECD category: Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics (UT-L)
Impact factor: 3.784, year: 2019
Method of publishing: Limited access
https://www.sciencedirect.com/science/article/pii/S0257897219302701?via%3Dihub
Functionally graded steel/tungsten layers may be used as interlayers in the first wall of future fusion reactors to balance thermally-induced stress peaks in the steel‑tungsten joint. In this work, a modified water-stabilized atmospheric plasma spraying set-up is used to deposit uniform and functionally graded steel/tungsten coatings at elevated substrate temperatures. Uniform coatings were used to characterise individual sublayers of graded coatings in detail. The thermal expansion, thermal conductivity, Young's modulus and yield strength of the layers are promising for the application in steel‑tungsten joints and can be explained by microstructural observations. Only at a substrate preheating temperature of 900 °C the formation of intermetallic precipitates during deposition was observed.
Permanent Link: http://hdl.handle.net/11104/0295465
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