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- Title
Micro‐hardness and gamma‐ray attenuation properties of lead iron phosphate glasses.
- Authors
Al-Buriahi, M. S.; Eke, Canel; Alomairy, Sultan; Mutuwong, Chalermpon; Sfina, Noureddine
- Abstract
For safe immobilization of nuclear waste, lead-iron phosphate glasses are promising as high-level commercial and defense materials. In this research article, the compositional, elastic, and gamma shielding properties of the glasses containing (80 − x)P2O5– xFe2O3–20PbO with x = 20, 25, 30, 35 mol% were reported. The compositional and elastic parameters including the micro-hardness of the investigated glass samples were obtained based on Makishima-Mackenzie's theory (MM-theory) and R model. We found that the deviation between these two methods decreased as Fe2O3 concentrations increased from 20 to 35 mol %. Additionally, γ-ray attenuation properties of the P2O5– Fe2O3–PbO glass system were evaluated using Geant4 simulation toolkit. The simulation results were compared with the theoretical ones extracted from Py-MLBUF software. The obtained results reveal that the MACs of the glasses vary from 0.030 to 40.014 cm2/g for PFP-A, from 0.031 to 41.502 cm2/g for PFP-B, 0.031 to 43 cm2/g for PFP-C and from 0.031 to 44.400 cm2/g for PFP-D. Maximum Zeff values of present glasses are obtained at 0.10 MeV whereas minimum Zeff values are obtained at 1.5 MeV. Finally, the fundamental γ-ray attenuation properties of the P2O5– Fe2O3–PbO glass system are found to be comparable with those of traditional and commercial radiation shields such as RS-253-G18 and RS-360 commercial glasses, ordinary concrete, barite concrete and TBZP10 from scientific literature. The results indicated that MFPs of the investigated glasses are lower than those of RS-360 glass, but they are higher than those of barite concrete and TBZP10.
- Subjects
SCIENTIFIC literature; MICROHARDNESS; PHOSPHATE glass; GLASS; RADIOACTIVE wastes; RADIATION shielding; IRON; OCHRATOXINS
- Publication
Journal of Materials Science: Materials in Electronics, 2021, Vol 32, Issue 10, p13906
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-021-05966-8