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NANOSYSTEMS: PHYSICS, CHEMISTRY, MATHEMATICS, 2016, 7 (1), P. 190–197

The influence of carbon (fullerite, graphite) on mechanical alloying of Cu-25 at % C composites

R. M. Nikonova – Physicotechnical Institute, Ural Branch of Russian Academy of Sciences, Izhevsk, Russia; RozaMuz@ya.ru
V. I. Ladyanov – Physicotechnical Institute, Ural Branch of Russian Academy of Sciences, Izhevsk, Russia
N. S. Larionova – Physicotechnical Institute, Ural Branch of Russian Academy of Sciences, Izhevsk, Russia

A comparative study of Cu-C60/70 and Cu-Cg composites obtained by mechanical alloying has been performed by means of scanning electron microscopy, X-ray diffraction, and Raman spectroscopy. It has been demonstrated that high stress-related effects, which take place during the mechanochemical synthesis of Cu-C60/70 and Cu-Cg composites with a nanocrystalline structure, result in the formation of an oversaturated solid solution of carbon in copper, Cu(C). The morphology and the parameters of the crystal lattice aCu(tMA) and the sizes of the crystallites L(tMA) of the powders obtained depend on the deformational stability of fullerite and graphite and also on their reactivity to adsorbed oxygen.

Keywords: fullerite, graphite, copper, mechanically alloyed composites.

PACS 61.48.-c, 61.72., 63.22. Kn, 68.35.-, 78.30.Na, 81.05.ub, 81.07.Bc, 82.80.Gk

DOI 10.17586/2220-8054-2016-7-1-190-197

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