Characterisation of microstructure and properties of nano-copper powders prepared by flow levitation method

Author: Chu, G.

Source: Powder Metallurgy, Volume 52, Number 1, March 2009 , pp. 84-86(3)

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Abstract:

Nano-Cu powders were prepared by flow levitation method. The morphologies, granularities, structure and properties of nano-Cu particles were systematically investigated by transmission electron microscopy, X-ray diffraction analysis, UV visible absorption spectroscopy and X-ray photoelectron spectroscopy. The results show that the mean granularity of the almost spheric nano-Cu particles prepared in Ar is 50 nm. The maximum specific absorption appears at the wavelength of 590 nm. On the surface of the nano-Cu particles, the number of Cu atoms versus O atoms is about 94·88 : 5·12 resulting from XPS spectra.

Keywords: X-RAY PHOTOELECTRON SPECTROSCOPY; PROPERTY; MICROSTRUCTURE; NANO-CU POWDERS; FLOW LEVITATION METHOD

Document Type: Rapid Communication

DOI: http://dx.doi.org/10.1179/174329008X315566

Publication date: 2009-03-01

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