A structural basis for the corrosion resistance of lead-iron-phosphate glasses: An X-ray absorption spectroscopy study

Structural investigation of iron phosphate glasses using molecular dynamics simulation

“…This is attributed to the abundance of easily hydrated P-O-P bonds [2]. However, several studies have shown that the addition of iron oxides [2] to phosphate glasses replaces the P-O-P bonds by more chemically durable P-O-Fe bonds.…”

Studies of lead–iron phosphate glasses by Raman, Mössbauer and impedance spectroscopy

“…Compared to borosilicate glasses, iron phosphate glasses can be melted at temperatures as low as $1200 K and in excess of 40 wt% of nuclear wastes, poorly soluble in borosilicate glasses, without any adverse effect on their good chemical durability [5,6]. It is believed that the exceptionally high chemical durability of iron phosphate glasses is a result of more hydration resistant Fe-O-P bonds that replace more easily hydrated P-O-P bonds, present in common phosphate glasses [5,7,8]. 0022 Lead-iron phosphate glasses waste forms, obtained by adding PbO to an iron phosphate glass, have recently been reinvestigated because of their improved chemical durability [9].…”

Structural properties of Cr2O3–Fe2O3–P2O5 glasses, Part I

“…However, several studies have shown that the chemical durability of phosphate glasses can be improved by the addition of oxides such as Al 2 O 3 and especially Fe 2 O 3 [5,6]. The high chemical durability of iron phosphate glasses is attributed to the replacement of the bridging P-O-P bonds by more moisture resistant P-O-Fe bonds [7][8][9]. As a result, iron phosphate glasses are of interest for several technological and biological applications.…”