Abstract
SHS investigation development is considered from the geographical and historical viewpoint. 3 stages are described. Within Stage 1 the work was carried out in the Department of the Institute of Chemical Physics in Chernogolovka where the scientific discovery had been made. At Stage 2 the interest to SHS arose in different cities and towns of the former USSR. Within Stage 3 SHS entered the international scene. Now SHS processes and products are being studied in more than 50 countries.
Abstract
The study of the physical and structural properties of rare-earth doped borate
glasses is discussed in this chapter. The glasses have been synthesized using the
conventional melt quenching technique. X-ray diffractometer has been used to
determine the amorphous nature of the prepared glass samples. Upon closer inspection
of the XRD patterns, it is observed that the peak width changes, which indicates that
the increase in the concentration of rare earth induces a localized devitrification of the
prepared glasses around the rare earth. To investigate the structural dependence on the
chemical composition of the manufactured glass, various parameters were determined.
The molecular vibrations and rotations related to covalent bonds found in the glasses
were studied using the infrared spectrum.
Keywords:
Borate glass, Fourier transform infrared spectroscopy, Nano-crystallization, Rare-earth, X-ray diffraction.
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Authors:Bentham Science Books