Thermal, optical and electrical properties of MnO2-doped mixed sodium potassium phosphate glasses

Manganese addition effect on structural and physical properties of calcium borovanadate glasses

“…Several investigations on borate manganese glasses [ 41 , 45 , 46 ] and other glasses containing manganese [ [47] , [48] , [49] , [50] , [51] ], have demonstrated the same tendency in the evolution of density and molar volume with the manganese oxides obtained in this work.…”

“…The observed increase in the Tg value means that the bonds inside the glass structure are stronger. Furthermore, this increase in Tg with Mn 2 O 3 concentration is probably linked to an enhancement in the compactness and cross-linking of the glass [ 19 , 39 , 47 ]. Whereas the decrease in Tg as a function of vanadium content leads to the creation of more voids in the glass matrix and consequently to a weakness of the bonds in the structure network [ 44 ].…”

“…Many studies on various glass structures [ 47 , 49 , 51 , 52 ], have reported the effect of introducing manganese ions, and have also found that adding more manganese increases the glass transition temperature.…”