Abstract
The structure of binary xZnO–(100–x)B2O3 glass and iron-containing, 2.5Fe2O3–97.5[xZnO–(100–x)B2O3] glass with x = 40, 45, 50, and 55 mol % obtained by the melt quenching method is studied by the methods of vibrational and Mossbauer spectroscopy. It is shown that the regularities of the transformation of the local glass structure as the function of zinc oxide content are the same for the glass of both series. A relatively small addition of iron oxide results in changing glass structure on the level of superstructural groups and to the distribution of trigonal basic borate units. The concentrations of di- and trivalent iron atoms are almost independent of the composition of the glass matrix while the coordination state of Fe3+ ions is a function of the zinc oxide content in the studied glass.
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