The effective role of La2O3 contribution on zinc borate glasses: radiation shielding and mechanical properties

• Published in: Applied physics. A, Materials science & processing Materials science & processing, 2019-12, Vol.125 (12), p.1-19, Article 867
• Main Authors: Issa, Shams A. M., Susoy, G., Ali, Atif Mossad, Tekin, H. O., Saddeek, Y. B., Al-Hajry, Ali, Algarni, Hamed, Anjana, P. S., Agar, O.
• Format: Article
• Language: English
• Subjects: Applied physics; Atomic properties; Attenuation coefficients; Boron oxides; Characterization and Evaluation of Materials; Computer simulation; Condensed Matter Physics; Density; Glass; Lanthanum; Lanthanum oxides; Machines; Manufacturing; Materials science; Mechanical properties; Nanotechnology; Optical and Electronic Materials; Physics; Physics and Astronomy; Processes; Radiation shielding; Stopping power; Surfaces and Interfaces; Termites; Thin Films; Zinc borate; Zinc oxide
• ISSN: 0947-8396; 1432-0630
• DOI: 10.1007/s00339-019-3169-5

In this theoretical study, the zinc borate glasses have been modified with lanthanum oxide (La 2 O 3 ) in a different amount (0, 1, 2, 3 and 4%).The mechanical and shielding properties change after adding of lanthanum oxide in zinc borate glasses depending on the bond compression and Makishima-Mackenzie models. The mass attenuation coefficients have been calculated using the XCOM program and MCNPX simulation code. The results present that La 2 O 3 increment in the glass density modifies the glass mechanical properties and improves the radiation attenuation performances. The variations in the mechanical properties are resulting from the formation of bridging oxygen. The density of the ZnO–B 2 O 3 –La 2 O 3 glass system is proportional to La 2 O 3 concentration, which is attributable to the highest molecular weight of La 2 O 3 than those of ZnO and B 2 O 3 . Furthermore, the mass attenuation coefficients, effective atomic numbers and effective removal cross-section of the glasses increases as La 2 O 3 contains increase. The half-value layer, tenth value layer, mean free path, buildup factors and mass stopping power of the glasses decrease as La 2 O 3 contain increases. Present results explained the characteristic of ZnO–B 2 O 3 –La 2 O 3 glass as a novel nominee for radiation attenuation barrier in the chosen energy zone.