FORMATION OF CHEMICALLY ACTIVE SURFACES OF CRYSTALS DURING DEFORMATION ON THE EXAMPLE OF QUARTZ
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- Category: Solid-state physics, mineral processing
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V.V. Soboliev, N.V. Bilan
The mechanism of energy accumulation by the crystalline matters on the example of quartz that is basic rock-forming and “through” mineral of the hydrothermal systems is considered in the article. Energy of vacancies formation in quartz is accounted. The example of calculation of superficial energy for the quartz crystals is resulted. It is set that dislocations make basic contribution to the accumulated internal energy of quartz crystals, part of energy of vacancies and surfaces is below by a factor of 101-102; chemical activity of quartz crystals surface is determined by the density (by concentration) of superficial active centers, i.e. electric charges. It is shown that formation of external and internal interfaces, dislocations, vacancies and other defects is one of possible ways of accumulation of additional internal energy by crystals upon the mechanical loadings.
 2010_07-08 Sobol
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 2012-12-14  208.69 KB  1197 |
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