Thermal properties and FTIR spectra of K2O/Na2O iron borophosphate glasses

FTIR spectra and properties of iron borophosphate glasses containing simulated nuclear wastes

“…6 The chemical durability of the bulk glasses was evaluated from the weight loss of samples (1×1×1 cm 3 ) immersed in deionized water at 90 °C for 1~56 days. The samples were polished with 600 grit SiC paper, cleaned with acetone and suspended in polyethylene flasks containing 100 mL deionized water at 90 °C.…”

“…Vitrification has been one of the primary methods to deal with high-level radioactive wastes (HLWs) over the last half century, and it is, therefore, still of interest to many researchers [1][2][3][4][5][6]. Borosilicate glasses have been chosen as the first generation HLW host matrix due to their high chemical durability and good thermal stability.…”

The crystallization behaviour and bioactivity of wollastonite glass-ceramic based on Na2O–K2O–CaO–SiO2–F glass system

“…Glass transition temperature is a characteristic of structural relaxations taking place in the glass network and hence strongly depends on the nature of the structural units constituting the glass network and their connection way. Wang et al [18] reported that the substitution of K 2 O for Na 2 O in the glass leads to shifting of glass transition temperatures to higher values, which enhances the thermal stability of the studied glass.…”

Compositional dependence of properties in calcium substituted sodium borophosphate glasses containing $${\hbox {VO}}^{2+}$$ VO 2 + ions

“…The absorption peak at ∼612 cm −1 can be attributed to the bending vibrations of BO 3 units [31,33]. The peak at ∼870 cm −1 may be assigned to the combined vibrations of both non-bridging PO 2 groups and sharing of BO 4 groups thus forming BPO 4 units [34][35][36]. A broad band which is characteristic of the asymmetric stretching vibrations of PO 2 groups is observed at ∼1130 cm −1 .…”