Investigation of the Role of Fluorine on Fabrication, Physio-Optical and Radiation Shielding Properties of Aluminum Barium Borate (ABB) Glasses Containing Er2O3

In this work, the role of fluorine on physical, optical and radiation shielding properties of aluminum barium borate (ABB) glasses containing Er2O3 has been investigated. Five glasses with nominal compositions of 54.5B2O3 + (25-x)BaO + 4Al2O3 + 16Na2O + 0.5Er2O3 + xPbF2 and substitution ratios of x = 0–8 mol E_g^Direct ) varied between 3.3696 eV for the PbF0 sample and 3.1203 eV for the PbF8 sample. Moreover, in the case of an indirect transition, the ( E_g^Indirect ) decreased going from 3.0051 eV for the PbF0 sample to 2.7359 eV for the PbF8 sample. The refractive index was increased from 2.1364 for (PbF0) to 2.9689 eV for (PbF8) samples as the PbF2 substitution ratio increased. Surface- (SELF) and volume- (VELF) energy loss functions decreased as PbF2 increased in the glass structure. The mass (MAC)-and linear (LAC)-attenuations coefficient possessed that (MAC and LAC)PbF8 > (MAC and LAC)PbF6 > (MAC and LAC)PbF4 > (MAC and LAC)PbF2 > (MAC and LAC)PbF0 as MAC and LAC increased with increase in PbF2 concentration. Half value layer parameters was in opposite track of MAC and LAC. Results showed that the suggested composition can be applied in optical and radiation shielding fields.