Ultra-fast sintered functionally graded Fe/W composites for the first wall of future fusion reactors
| Autor: | S. Heuer, J. W. Coenen, Werner Theisen, Th. Weber, F. Gormann, A. Mohr, Gerald Pintsuk, Ch. Linsmeier, T. Lienig |
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| Rok vydání: | 2019 |
| Předmět: |
Fabrication
Materials science Mechanical Engineering Intermetallic Sintering 02 engineering and technology Fusion power 010402 general chemistry 021001 nanoscience & nanotechnology 7. Clean energy 01 natural sciences Industrial and Manufacturing Engineering 0104 chemical sciences Mechanics of Materials Homogeneous Thermal ddc:660 Ceramics and Composites Nuclear fusion Ultra fast Composite material 0210 nano-technology |
| Zdroj: | Composites Part B: Engineering Composites / B Engineering Part B 164, 205-214 (2019). doi:10.1016/j.compositesb.2018.11.078 |
| ISSN: | 1359-8368 |
| Popis: | Aiming at the realisation of nuclear fusion reactors, the joining of W and steel parts is currently examined. Based on proposals to implement functionally graded steel/W materials (FGMs) in the joint to cope with thermal stresses, the present contribution introduces a novel fabrication method for steel/W FGMs. Electro Discharge Sintering (EDS) was used to consolidate Fe/W powders within milliseconds at atmosphere. Due to the short process time, the formation of detrimental intermetallic Fe-W precipitates is limited compared to established fabrication methods. The current work first presents results of the Fe/W powder processing, then a feasibility study regarding the fabrication of homogeneous and graded Fe/W composites with W volume fractions of 0, 25, 50 and 75 % via EDS is presented. Lastly, the composites are characterised microstructurally, thermo-physically, and mechanically in detail. |
| Databáze: | OpenAIRE |
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