Electric explosion nickel nanopowders

Abstract

The structure and the morphology of the nickel nanopowders synthesized by an electric explosion of a metallic wire are comprehensively studied. The results of scanning and transmission electron microscopies show that the nickel nanoclusters have a spherical shape with an average diameter of 50 nm. An analysis of X-ray diffraction patterns demonstrates that the lattice parameter of the electric explosion nanopowder particles is larger than the standard parameter. The results of computer experiments agree well with the conclusions drawn from X-ray diffraction data. However, the causes of the lattice distortion in the nickel nanoclusters are still debatable.