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The Deformation of Single, Nanometer‐Sized Metal Crystals in Graphitic Shells
Author(s) -
Li J.,
Banhart F.
Publication year - 2005
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200401917
Subject(s) - materials science , nanometre , annealing (glass) , transmission electron microscopy , deformation (meteorology) , metal , composite material , deformation mechanism , deformation bands , single crystal , grain boundary , crystallography , nanotechnology , metallurgy , microstructure , chemistry
Deformation of single, nanometer‐sized metal crystals is monitored in situ by transmission electron microscopy (see Figure). Compressive forces from graphitic shells encapsulating Mo or W crystals lead to slow but considerable deformation. The formation of twins and grain boundaries is observed. Sustained or cyclic deformation leads to re‐annealing of defects so that a permanent accumulation of defects in the crystals does not occur.