Comprehensive study on physical, elastic and shielding properties of lead zinc phosphate glasses

Abstract

A series of ternary phosphate glasses in the form of (PbO)x(ZnO)60-x(P2O5)40 where x = 0-60 mol%, have been successfully prepared by conventional melt-quenching technique. The physical and elastic properties of the glasses have been investigated using pulse echo technique. The longitudinal and shear velocity of the glasses were measured using the MBS8000 ultrasonic data acquisition system at 10 MHz frequency in room temperature. The density, ultrasonic velocity and elastic moduli are found to be composition dependent and the correlation between the elastic moduli with the atomic packing density is discussed in detailed. The shielding parameters, mass attenuation coefficients, half value layers and exposure buildup factor (EBF) values have been computed using WinXCom program with the use of GP fitting method, and variation of shielding parameters are discussed for the effect of PbO addition into the glasses and photon energy. An increase in the density of the glasses results in a change in crosslink density. The sound velocity and elastic properties increased with PbO content and increase in Poisson's ratio trend suggests that the rigidity of the glasses has decreased. Besides, the replacement of ZnO by PbO causes an increase in mass attenuation coefficient, while the half value layer and the exposure buildup factor were decreased and these glasses has been potentially used as shielding material.

Physical, structural, optical and gamma‐ray shielding properties of Na2O‐CdO‐Bi2O3‐B2O3 glasses

“…The buildup factors for exposure (EBF) and absorbance (EABF) of the fabricated new glasses are calculated using the methods of interpolation from the equivalent atomic number Z eq . Calculations are divided into three steps 38–40 :…”

MoO3-TeO2 glass system for gamma ray shielding applications

“…On the other hand, the significant use of x-ray and gamma-ray in many fields requires hard efforts to search for new materials which are economic, environment friendly, and proper protective against x-ray and gamma-ray. In this regards, several authors reported different type of glasses as promising shielding materials [7][8][9][10][11]. Sayyed [7] proposed some HMO glasses such as PbO, MgO, Ag 2 O, Nb 2 O 5 , ZnO and BaO for gamma-ray applications.…”

“…The results were compared with some concretes. Phosphate glasses were also studied and it was noted that the substitution of ZnO by PbO improves the gamma-ray shielding ability of the glasses [11]. However, the toxicity the lead (Pb) provide strong motivations to replace Pb element by another high-Z element such as Mo, Ba, W, Bi, Gd and etc.…”

Comprehensive Study on Elastic Moduli Prediction and Correlation of Glass and Glass Ceramic Derived from Waste Rice Husk

“…Decrease in both and with the rise of ZnO also indicates that the ultrasonic wave encounters more resistance in the ZnO-SiO 2 samples as the amount of ZnO increases [27,28]. Not only that, rise of ZnO in the ZnO-SiO 2 samples also indicates that more Zn 2+ ions exist in the samples and this caused overall more ions in samples to be opened up [29]. A result of lower ultrasonic velocity at higher content of ZnO indicates a major alteration in the structures of the samples.…”