RED-OX RELATION of Sn2+/Sn4+ in the GLASSES of the ZnO-SnO-P2O5 SYSTEM
2002 Volume 13 Pages 159-163
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2002 Volume 13 Pages 159-163
The dependence of red-ox relation Sn2+/Sn4+ on the synthesis conditions and alloying additions was studied in the glasses of the ZnO?SnO?P2O5 system. The investigation of the Red-Ox stability of tin oxide in the synthesized glass was carried out in the conditions of heat treatment in different gaseous atmosphere. The ratio Sn2+/Sn4+ was determined by the methods of chemical analyses and Mossbauer spectroscopy. WO3, MoO3, B2O3, Sb2O5 were used as alloying additions. Their quantities changed from 0.1 to 3 mol.% The different influence of additions on the Sn2+/Sn4+ ration was shown. The composition dependence of both glass transition and crystallization temperatures have been studied by DSC.
