Abstract
This paper examines the structural and particle size characteristics of lithium carbonate after mechanical processing in an AGO-2 planetary activator, followed by heat treatment. Milling increases the specific surface area of lithium carbonate, changes the aggregate size distribution, reduces the crystallite size, increases the lattice strain in the material, and changes the monoclinic cell parameters. Subsequent heat treatment of the mechanically activated samples in the range 25–500°C is accompanied by recrystallization of the material: its specific surface area and lattice strain decrease, the crystallite size increases, and its unit-cell parameters change.
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