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Advances in Materials Science and Engineering
Volume 2013, Article ID 543857, 6 pages
Research Article

A Kinetic Study of Micronization Grinding of Dry Mica in a Planetary Ball Mill

1Institute for Technology of Nuclear and Other Mineral Raw Materials, Franchet d’Esperey Street 86, 11000 Belgrade, Serbia
2Institute for Materials Testing, Vojvode Mišića Boulevard 43, 11000 Belgrade, Serbia
3Faculty of Technology and Metallurgy, University of Belgrade, Karnegy Street 4, 11000 Belgrade, Serbia
4Technical Faculty in Bor, University of Belgrade, Vojske Jugoslavije Street 12, 19210 Bor, Serbia

Received 9 May 2013; Accepted 13 September 2013

Academic Editor: Jacques Huot

Copyright © 2013 Ljubiša Andrić et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This paper presents results of the research of micronization grinding of dry mica in a planetary ball mill. Investigation was conducted in order to improve the quality and to obtain clearly defined properties and characteristics of mica powder. The micronization grinding of dry mica was performed in four time periods: 30, 60, 120, and 360 minutes. The micronized powder was investigated by means of differential thermal and thermogravimetric analyses, analysis of the degree of micronization, the specific surface area analysis, and X-ray diffraction analysis. The achieved results pointed out that dry mica micronization grinding which exceeds 360 minutes is recommended for this type of mill. However, it was also shown that the micronized mica produced by means of planetary ball mill after extra long periods of micronization grinding can pass into amorphous state.