FEATURES OF GLASS PRODUCED FROM A SOLAR FURNACE

The effect of the flux density of concentrated solar radiation on the microstructure, degree of homogeneity, and charge state of glass ions obtained by quenching fused pyroxene rock in a solar furnace has been studied. It is shown that with an increase in the flux density, a decrease in the particle size to 0.4 μm is observed, a change in the color of the glass due to a change in the charge state of iron ions Fe3+ → Fe2+. The dependence of the glass particle size on the incident radiation spectrum was observed. In the case of irradiation with a concentrated flux of solar radiation, a low scatter of particle size values ​​(380–800 nm) was observed with a maximum number of particles with a size of 560 nm. It is shown that slow cooling (100 deg/s) of the melt makes it possible to obtain a polycrystalline state with a mixed phase structure of monoclinic diopside and augite. Stepped firing of glasses leads to the formation of a single-phase diopside-hedenbergite.

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