Preparation of Nanocrystalline Copper and Copper Silicon Sulphide by Mechanochemical Route

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The composition and properties of powders prepared by high-energy milling of copper sulphides with silicon have been studied by methods of X-ray diffractometry and surface area measurement. The combination of several methods was utilized to develop a coherent picture of the process. The overall process of mechano-chemical transformations in copper sulphide-silicon system proceeds via complicated mechanism with several overlapping steps. Phase transformations in copper sulphide phases, the formation of elemetal nanocopper with X-ray determined particle size of 23 nm and creation of ternary sulphide Cu8SiS6 with anomalous surface area values are the main products of the mechanochemical reaction.

Info:

Periodical:

Materials Science Forum (Volumes 480-481)

Edited by:

A. Méndez-Vilas

Pages:

453-456

Citation:

P. Baláz et al., "Preparation of Nanocrystalline Copper and Copper Silicon Sulphide by Mechanochemical Route", Materials Science Forum, Vols. 480-481, pp. 453-456, 2005

Online since:

March 2005

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$38.00

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