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In this article, novel W–Cu composites reinforced with topologically-inserted tungsten fibers (Wf) have been fabricated by hot-press sintering and infiltration method. By pre-sputtering of ~100nm thick chromium layer onto the surface of Wf, the contiguity or connectivity between Wf and neighboring tungsten particles (Wp) or Cu after sintering and infiltration was enhanced. Combined SEM, TEM and STEM...
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