Thermal analysis characterization of the reactions of metaphosphate glasses used as binders for oxides

Abstract

Differential thermal analysis has been used to characterize reactions involved in the consolidation of oxides (NiO, ZnO, Al 2O 3, TiO 2) with metaphosphate glasses. The exothermic phenomena of the reactions with sodium metaphosphate glass are discussed in terms of the electrostatic field strength ( z/ a 2) and the oxoacidity. The results were then extrapolated to ternary metaphosphate glasses of the Na 2O-CaO-P 2O 5 and Na 2O-MnO-P 2O; systems.