Structure and other physical properties of magnesium vanadate glasses

Structure and other physical properties of (100-x)MgO-xV<SUB>2</SUB>O<SUB>5</SUB> glasses of different compositions are reported in this paper. Different studies like X-ray diffractograms and oxygen molar volume show that homogeneous glasses are obtained in the composition domain x=60-90 mol%. It has been observed that the network structure for all glass compositions is built up of VO<SUB>4</SUB> polyhedra. The glass transition temperatures are observed to decrease with an increase in V<SUB>2</SUB>O<SUB>5</SUB> content in the compositions. An increase in the concentration of the reduced V<SUP>4+</SUP> ions with an increase in V<SUB>2</SUB>O<SUB>5</SUB> content is observed from the magnetic susceptibility studies