Impact of Al2O3, TiO2 and ZnO addition on the crystallization of Yb3+ doped phosphate glass-ceramic

New Yb3+-doped phosphate glasses with a composition of (98.75-x) (90 NaPO3 – 10 Na2O) x (Al2O3, TiO2, or ZnO) 1.25 Yb2O3 (in mol-%), from 0 to 3, were prepared via conventional melting and quenching process. The thermal physical properties studied by differential analysis (DTA) density measurement, respectively. glass structure was investigated using visible/infrared spectroscopy the crystallization XRD. Changes in found have an impact on more importantly process; addition Al2O3, TiO2 ZnO promotes precipitation Na5P3O10 crystalline phase at expense NaYb(P2O7) phases importantly, surface bulk crystallization.