Transformation of graphite structure under mechanical grinding

Using x-ray diffractometry and computer simulation, the process of graphite structure transformation under mechanical grinding is investigated. It is established that all of main structural parameters vary over grinding time and are interrelated. The major parameter, whose variation affects the changes of the other, is the average size of the regions of coherent scattering along the crystallographic axis a, L_a. Reduction in the grain size is the main change under mechanical grinding, the change in the lattice parameters being its consequence. __________ Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 8, pp. 29–34, August, 2006.