Special non-CSL grain boundaries in tungsten: Misorientation distribution and energetics
2015
Abstract As observed by field ion microscopy, a substantial part of randomly selected high-angle GBs in hard drawn tungsten wire, are those terminated by a low index plane and the medium index complements to this surface, which occur at special non-CSL misorientations. These GBs are special with respect to their misorientation distribution and are correlated to the intergrain cohesive energy. The GBs have revealed a high resistance to mechanical stresses approaching a significant fraction of the theoretical strength.
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