High Heat Flux Testing of Doped and Coated Graphite Using High Intensity Pulsed Ion Beam
X.P. Zhu, C. Liu and M.K. Lei
Surface Engineering Laboratory, School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China
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A high intensity pulsed ion beam (HIPIB) technique is applied to heat flux testing of plasma facing materials for fusion experiment. The HIPIB is generated at a relatively stable power density up to 108 W/cm2, which covers a heat flux parameter of up to several hundreds MW m-2 s1/2. Surface morphology and weight loss are examined for doped and coated graphite with HIPIB exposure of 280 MW m-2 s1/2, being of the same order of thermal loads during off normal events in future fusion reactors. The work demonstrates a first example utilizing the HIPIB technique to study thermal response of plasma facing materials under fusion relevant thermal loads.
DOI: 10.12693/APhysPolA.115.1177
PACS numbers: 28.52.Fa, 52.59.Mv, 81.05.Uw