•  
  •  
 
CHEMISTRY AND CHEMICAL ENGINEERING

Abstract

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.

Share

COinS
 
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.