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U.S. Department of Energy
Office of Scientific and Technical Information

Initial testing of coated limiters in ISX-B

Conference ·
OSTI ID:5478148
Low-Z coatings on graphite substrates have been developed for testing as limiters in the Impurity Study Experiment (ISX-B) tokamak. Laboratory and tokamak testings have been accomplished. The laboratory tests included thermal shock experiments by means of pulsed e-beam irradiation, arcing experiments, and hydrogen and xenon ion erosion experiments. The tokamak testing consisted of ohmically heated plasma exposures with energy depositions up to 10 kJ/discharge on the limiters. The coatings, applied by chemical vapor deposition, consisted of TiB/sub 2/ and TiC deposited on POCO graphite substrates.
Research Organization:
Oak Ridge National Lab., TN (USA); Sandia Labs., Albuquerque, NM (USA)
Sponsoring Organization:
USDOE Office of Fusion Energy
DOE Contract Number:
W-7405-ENG-26
OSTI ID:
5478148
Report Number(s):
CONF-800455--8
Country of Publication:
United States
Language:
English