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Resistance for repetitive pulse heat load and vacuum properties of F82H steel protected by plasma-sprayed W, which is being developed as advanced plasma facing armor material for fusion reactors, was ...experimentally examined. Microscopic observation of the sprayed W by means of EBSD and SEM revealed that deposition of large spherical particles of un-melted and/or re-solidified W ejected from the plasma gun prevent good interlayer adhesion in the sprayed W. It was experimentally shown that the number of the spherical particles will be minimized by optimizing the power of the gun and the distance between the plasma gun and the substrates. In order to reduce large retention of residual gas pre-annealing in vacuum above 450K is necessary.続きを見る
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Mendeley出力
