Thick functionally-graded W-316L composite coatings for nuclear fusion applications

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F23%3A00573302" target="_blank" >RIV/61389021:_____/23:00573302 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21220/23:00365917 RIV/68407700:21340/23:00365917
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S2352179123000121?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2352179123000121?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.nme.2023.101373" target="_blank" >10.1016/j.nme.2023.101373</a>

Result language
angličtina
Original language name
Thick functionally-graded W-316L composite coatings for nuclear fusion applications
Original language description
Nuclear fusion is a potential pathway to finding a sustainable, carbon-free energy source. Some critical components of the fusion reactors are planned to be coated by tungsten. For the task, thermal spraying in vacuum or protective atmosphere can be employed, offering several advantages such as easy preparation of advanced feedstock for deposition of functionally graded composites. Such coatings could be a viable approach to avoid the thermal expansion coefficient mismatch between the W coating and the steel components. In this study, radio-frequency inductively-coupled plasma spray method was used to deposit W-steel composite coatings of three different W ratios, as well as a functionally graded coating consisting of the three composites and a pure W top coat. The coatings exhibited a high-quality microstructure, without intermetallic or oxide phases formation. Thermal diffusivity and conductivity of the coatings was measured at 100 °C and 600 °C, with the values falling into range between the bulk steel and plasma sprayed W. In conclusion, we have shown that the RF-ICP technology is suitable for preparation of tungsten-steel graded deposits and the outputs are now prepared for other testing and a following upscaling to the industry-relevant size.
Czech name
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Czech description
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Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
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OECD FORD branch
20501 - Materials engineering

Project
<a href="/en/project/GA19-14339S" target="_blank" >GA19-14339S: High temperature preparation of advanced refractory materials by inductively coupled plasma in controlled atmosphere</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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