Study of grain size variation and thermal oxidation of nanocrystalline copper produced by exploding wire method

Author(s): Rashmita Das, Basanta. K.Das, Anurag Shyam

Heat generation in the process of formation of nanoparticles plays important role. Copper wire exploded by current pulse undergoes many intermediate stages, whose detailed study is required for formation of desired size, shape aswell as of the possibility of generation of newmaterial. In this paper we will discuss about those intermediate stages of copper oxide by varying overheating of wire, which occurs due to variation of the energy injection into the wire. Sample was characterized by X-ray Diffraction for composition and grain size variation. The result shows the systematic increase of oxidation of copper with decrease of grain size.

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