Abstract

The effect of mechanical dispersion on quartz sand using an AGO-2 centrifugal-planetary mill is investigated. It is shown that for constant comminution time but different intensities of action surface amorphization and disordering of layers occurs in the surface layer of the sand particles and IR-Fourier spectroscopy shows that some bond angles in the SiO4 tetrahedron change. Measurement of the heat effect of the phase transition α- to β-modification of quartz showed that the heat effect of the transition decreases for the strongest action (50 Hz) by approximately 25%.

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