Lattice Defects in Nanoparticles and Nanomaterials Sintered From Nanopowders
Abstract
In this chapter, the type and densities of lattice defects in nanoparticles and bulk nanomaterials consolidated from nanopowders are overviewed. The evolutions of arrangement, edge/screw character and density of dislocations, and grain size during milling of metallic powders are presented. The minimum grain size achievable by milling at room temperature is correlated to the melting point of metals. The formation of dislocations, disclinations, and twin faults in nanoparticles produced by bottom-up methods are discussed. The effects of the initial powder particle size and the consolidation conditions on the defect structure in sintered metals, diamond, ...
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