Abstract
The parameters of mechanical action on solids were determined for apatite and quartz as examples, providing separation between fracture, grinding and mechanical activation processes in solids. The texture, structural and chemical changes accompanying these processes in the samples under investigation are shown. The data on mechanochemical synthesis of isomorphous apatite modifications in multicomponent systems are reported. A reversible character of mechanochemical activation and mechanochemical synthesis is discovered.
Highlights
Diverse processes are observed during mechanical action on solids
In the present work we describe the results of investigations of these processes on the example of isomorphous modifications of apatite and quartz
Complexes with PMC like F - - O- - F, F- - O- - Cl- ; Cl- - O- - Cl- are localized on the 63 axis, while РО32 – and SO3- paramagnetic centers are localized in the positions of the РО43- tetrahedron in the apatite structure [8]
Summary
Depending on the conditions of mechanical treatment and the properties of solids, processes such as plastic deformation, fracture, grinding, mechanical activation accompanied by structural and chemical transformations can take place, and in multicomponent systems mechanochemical synthesis can occur. Distortions of the long-range order were determined on the basis of changes in the crystallinity degree of the samples as exhibited by the data of X-ray structural analysis for the characteristic reflections of apatite.
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