Testing of actively cooled high heat flux mock-ups

M. Rödig, R. Duwe, W. Kühnlein, J. Linke, M. Scheerer, I. Smid, B. Wiechers

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


Several un-irradiated CFC monoblock mock-ups have been loaded in thermal fatigue tests up to 1000 cycles at power densities <25 MW/m2. No indication of failure was observed for these loading conditions. Two of the mock-ups were inspected by ultra-sonic methods before thermal cycling. It could be proved that the voids found in the post-mortem metallography existed before and had no effect on the integrity of the mock-up. For the first time, neutron-irradiated CFC monoblock mock-ups have been tested in the electron beam facility JUDITH. These mock-ups had been irradiated before in the High Flux Reactor at Petten up to 0.3 dpa at 320°C and 770°C. All samples showed a significant increase of surface temperature, due to the irradiation induced decrease in thermal conductivity of the CFC materials.

Original languageEnglish (US)
Pages (from-to)967-971
Number of pages5
JournalJournal of Nuclear Materials
Issue numberPART 1 A
StatePublished - Oct 1998

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • General Materials Science
  • Nuclear Energy and Engineering


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