Abstract:
The chemical durability of iron borophosphate (IBP) glasses with molar composition of 36Fe
2O
3-10B
2O
3-54P
2O
5 containing different contents of cerium oxide were measured by dissolution rate (DR) and product consistency test (PCT) method, the structure units and glass transition temperature (
Tg) of prepared glasses were also characterized by the XRD, FTIR spectra and DTA. Monazite-typed cerium phosphate crystal was detected by XRD apparatus in the glass with molar composition of 15CeO
2-30
6Fe
2O
3-8.5B
2O
3-45.9P
2O
5, and the glass chemical durability was also improved for the crystallization. The results analyzed by FTIR spectra show that the main glass structure units are (P
2O
7)
4-, (PO
4)
3- groups and boronoxygen tetrahedron [BO
4], almost without easily hydrolytic (PO
3)
- groups. The structure units are changed from (PO
3)
- groups to (P
2O
7)
4- or (PO
4)
3- groups as the increase in cerium loading which also enhance the glass chemical durability.