High heat flux test of actively cooled tungsten-coated carbon divertor mock-ups

Kazutoshi Tokunaga, N. Yoshida, Y. Kubota, N. Noda, Y. Imamura, T. Oku, A. Kurumada, T. Sogabe, T. Kato, L. Plöchl

Research output: Contribution to journalConference article

17 Citations (Scopus)

Abstract

CX-2002U and IG-43OU coated by VPS-W were developed to be as a light high-Z plasma-facing material. After brazing them on OFHC blocks using a Ti foil, their thermal response and thermal fatigue properties were examined with active cooling. No cracks and no exfoliation occurred on the W surface and the braze interface even after 160 cycles of heat load for 20 s at 10 MW/m2. This result indicates that the Ti-brazing is a possible alternative to Ag-brazing for joining carbon to Cu. Heat load resistance of the VPS-W coated CX-2002U/OFHC was much better than the VPS-W coated IG-430U/OFHC due to the excellent thermal conductivity of CX-2002U. VPS-W coated CFC/OFHC is a potential candidate for a high heat resistance armor material on plasma facing components.

Original languageEnglish
Pages (from-to)371-376
Number of pages6
JournalFusion Engineering and Design
Volume49-50
DOIs
Publication statusPublished - Jan 1 2000
Event5th International Symposium on Fusion Nuclear Technology - Rome, Italy
Duration: Sep 19 2000Sep 24 2000

Fingerprint

Mockups
Tungsten
Brazing
Heat flux
Carbon
Thermal load
Plasmas
Chlorofluorocarbons
Facings
Thermal fatigue
Armor
Heat resistance
Joining
Metal foil
Thermal conductivity
Cooling
Cracks

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Mechanical Engineering

Cite this

High heat flux test of actively cooled tungsten-coated carbon divertor mock-ups. / Tokunaga, Kazutoshi; Yoshida, N.; Kubota, Y.; Noda, N.; Imamura, Y.; Oku, T.; Kurumada, A.; Sogabe, T.; Kato, T.; Plöchl, L.

In: Fusion Engineering and Design, Vol. 49-50, 01.01.2000, p. 371-376.

Research output: Contribution to journalConference article

Tokunaga, K, Yoshida, N, Kubota, Y, Noda, N, Imamura, Y, Oku, T, Kurumada, A, Sogabe, T, Kato, T & Plöchl, L 2000, 'High heat flux test of actively cooled tungsten-coated carbon divertor mock-ups', Fusion Engineering and Design, vol. 49-50, pp. 371-376. https://doi.org/10.1016/S0920-3796(00)00399-9
Tokunaga, Kazutoshi ; Yoshida, N. ; Kubota, Y. ; Noda, N. ; Imamura, Y. ; Oku, T. ; Kurumada, A. ; Sogabe, T. ; Kato, T. ; Plöchl, L. / High heat flux test of actively cooled tungsten-coated carbon divertor mock-ups. In: Fusion Engineering and Design. 2000 ; Vol. 49-50. pp. 371-376.
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AU - Noda, N.

AU - Imamura, Y.

AU - Oku, T.

AU - Kurumada, A.

AU - Sogabe, T.

AU - Kato, T.

AU - Plöchl, L.

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