THE AVERAGE ORDER IN MULTICOMPONENT GLASSES
The results of processing photographs of surfaces chip of the multicomponent glass confirmed the assumption, that the particle sizes are in the order of 50…200 Å. These data are ob-tained on an atomic force microscope and take into account the dimensions of the spatial inho-mogeneities, that are present in the glass. The results fit in-to the general model of glass-forming in fluorozirconate systems. It is established, that the size of the crystal-lites (from 20 to 170 Å) depends on the cooling rate of the melt, the dependence of the sizes of heterogeneities of the cooling rate of the melt fluoride-zirconium glasses, and a high speed of cooling allows to obtain glass with clusters of smaller size. The dimensions of the inhomogeneities in quartz glass have a more narrow size range. The size of the particles, that make up the glass structure, must be such that the number of mole-cules of the glass-forming compound on the surface of the particles is commensurate with the number of molecules of stabilizers, i.e. the concentration of the surface molecules must be several percent of their total number, then the diameters of the particles can exceed 100 Å.
Authors: E. Yu. Mikhteeva, S. Sh. Mikhteev
Direction: Physical Phenomena in a Solid Body, Liquids and Gases
Keywords: Fluorozirconate glasses, atomic force microscopy, glass structure, average order of glass, multicomponent glasses, the diffraction pattern Fraunhofer
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