Influence of the Activation Time on Parameters
of a Graphite Structure

L. I. Mamina^a,†, T. R. Gil’manshina^a,*, V. I. Anikina^a, V. N. Baranov^a,**, S. I. Lytkina^b,***,
A. K. Abkaryan^b,****, and S. A. Khudonogov^b,*****

^aInstitute of Nonferrous Metals and Materials Science, Siberian Federal University,
pr. Krasnoyarskii rabochii 95, Krasnoyarsk, 660025 Russia

^bPolytechnic Institute, Siberian Federal University, ul. Akademika Kirenskogo 26, Krasnoyarsk, 660074 Russia

*e-mail: gtr1977@mail.ru

**e-mail: vnbar79@mail.ru

***e-mail: svetka-lisa@mail.ru

****e-mail: abkaryan_artur@mail.ru

*****e-mail: doktor63@yandex.ru

Received November 25, 2013; accepted for publication March 18, 2014; in final form April 1, 2014

Abstract—The structure of natural crystalline and cryptocrystalline graphites from deposits of Krasnoyarsk krai
is investigated by means of X-ray structural analysis using a D8 Advance diffractometer (Bruker, Germany). The
variations in types and parameters of the crystal lattice due to the mechanical activation or mechanical synthesis
of the material are revealed and the optimal activation modes of graphite at which they occur are established. The
influence of the treatment time on the structural parameters of both types of graphites is considered. It is shown
that their physicochemical properties are improved at the optimal activation duration due to the variation in the
type and lattice parameters as well as amorphization of the crystal structure.

Keywords: cryptocrystalline graphite, crystalline graphite, mechanical activation, graphite crystal lattice

DOI: 10.3103/S1067821216010119

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