Detail publikačního výsledku

Cold Sprayed Tungsten Armor for Tokamak First Wall

ČÍŽEK, J.; VILÉMOVÁ, M.; LUKÁČ, F.; KOLLER, M.; KONDAS, J.; SINGH, R.

Originální název

Cold Sprayed Tungsten Armor for Tokamak First Wall

Anglický název

Cold Sprayed Tungsten Armor for Tokamak First Wall

Druh

Článek WoS

Originální abstrakt

Harnessing nuclear fusion is a challenging task, in particular because of the demands put on the used materials. In tokamaks, future energy sources, the inner-most chambers are to be coated with dense coatings of W, or W-Cr-based alloys. So far, the attempts for such coatings formation by other methods failed due to oxidation, high porosity, insufficient adhesion, high specific surface, or even insufficient thickness below 10 mu m. Cold spraying seems a promising technology for the task. In our study, we demonstrate the first successful fabrication of thick pure W coatings. W-Cr and W-Cr-Ti coatings were further prepared without oxidation of the metals. All coatings exhibited high hardness levels, good interface quality with three tested substrates and, importantly, a promising potential for formation of stable Cr2WOx phases.

Anglický abstrakt

Harnessing nuclear fusion is a challenging task, in particular because of the demands put on the used materials. In tokamaks, future energy sources, the inner-most chambers are to be coated with dense coatings of W, or W-Cr-based alloys. So far, the attempts for such coatings formation by other methods failed due to oxidation, high porosity, insufficient adhesion, high specific surface, or even insufficient thickness below 10 mu m. Cold spraying seems a promising technology for the task. In our study, we demonstrate the first successful fabrication of thick pure W coatings. W-Cr and W-Cr-Ti coatings were further prepared without oxidation of the metals. All coatings exhibited high hardness levels, good interface quality with three tested substrates and, importantly, a promising potential for formation of stable Cr2WOx phases.

Klíčová slova

cold gas kinetic spray; W-Cr; W alloys; oxidation shield; nuclear fusion; thick coatings; self-passivation; PFC; plasma facing components

Klíčová slova v angličtině

cold gas kinetic spray; W-Cr; W alloys; oxidation shield; nuclear fusion; thick coatings; self-passivation; PFC; plasma facing components

Autoři

ČÍŽEK, J.; VILÉMOVÁ, M.; LUKÁČ, F.; KOLLER, M.; KONDAS, J.; SINGH, R.

Rok RIV

2020

Vydáno

07.12.2019

Nakladatel

MDPI

Místo

BASEL

ISSN

2079-6412

Periodikum

Coatings, MDPI

Svazek

9

Číslo

12

Stát

Švýcarská konfederace

Strany od

1

Strany do

15

Strany počet

15

URL

https://www.mdpi.com/2079-6412/9/12/836

Plný text v Digitální knihovně

http://hdl.handle.net/11012/188998

BibTex

@article{BUT163555,
  author="Jan {Čížek} and Monika {Vilémová} and František {Lukáč} and Martin {Koller} and Jan {Kondas} and Reeti {Singh}",
  title="Cold Sprayed Tungsten Armor for Tokamak First Wall",
  journal="Coatings, MDPI",
  year="2019",
  volume="9",
  number="12",
  pages="1--15",
  doi="10.3390/coatings9120836",
  issn="2079-6412",
  url="https://www.mdpi.com/2079-6412/9/12/836"
}

Dokumenty

coatings-09-00836-v2