TY - JOUR

T1 - La/Nd-doped zirconium oxide: Impact of zirconia phase transition on gamma-ray shielding properties

AU - Alhindawy, Islam

AU - Gamal, Hany

AU - Zaher, Ahmed A.

AU - Sayyed, M.

AU - Almuqrin, Aljawhara

AU - Aloriani, Dalal A.

AU - Elsheikh, Yasir Ali

AU - Bakather, Omer Yahya

AU - Mahmoud, K. A.

N1 - The authors express their gratitude to the Princess Nourah bint Abdulrahman University Researchers Support Project Number (PNURSP2024R2), Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia.

PY - 2024/4/1

Y1 - 2024/4/1

N2 - We investigate the effect of neodymium and lanthanum on zirconia radiation shielding and structural properties. To achieve this, new La/Nd-doped ZrO2 nanomaterials were synthesized and analyzed via various experimental techniques, including energy-dispersive X-ray spectroscopy, scanning electron microscopy, transmission electron microscopy, and X-ray diffraction, to determine the fabricated materials' structure, chemical composition, and morphology. Additionally, to enable the estimation of the effect of the ZrO2 phase transition on the synthesized La/Nd-doped ZrO2 nanomaterials' γ-ray shielding properties, Monte Carlo simulation was used. The simulated data revealed that the fabricated materials' linear attenuation coefficient decreased slightly from 17.584 cm−1–17.442 cm−1 at 0.059 MeV, from 0.382 cm−1 to 0.375 cm−1 at 0.662 MeV, from 0.253 cm−1 to 0.248 cm−1 at 1.408 MeV, and from 0.180 cm−1 to 0.176 cm−1 at 15 MeV with decrease of the fraction of the tetragonal phase from 84 % to 57 %. The reduction in the linear attenuation coefficient is associated with increased thickness in terms of the fabricated materials' Pb equivalent and half values.

AB - We investigate the effect of neodymium and lanthanum on zirconia radiation shielding and structural properties. To achieve this, new La/Nd-doped ZrO2 nanomaterials were synthesized and analyzed via various experimental techniques, including energy-dispersive X-ray spectroscopy, scanning electron microscopy, transmission electron microscopy, and X-ray diffraction, to determine the fabricated materials' structure, chemical composition, and morphology. Additionally, to enable the estimation of the effect of the ZrO2 phase transition on the synthesized La/Nd-doped ZrO2 nanomaterials' γ-ray shielding properties, Monte Carlo simulation was used. The simulated data revealed that the fabricated materials' linear attenuation coefficient decreased slightly from 17.584 cm−1–17.442 cm−1 at 0.059 MeV, from 0.382 cm−1 to 0.375 cm−1 at 0.662 MeV, from 0.253 cm−1 to 0.248 cm−1 at 1.408 MeV, and from 0.180 cm−1 to 0.176 cm−1 at 15 MeV with decrease of the fraction of the tetragonal phase from 84 % to 57 %. The reduction in the linear attenuation coefficient is associated with increased thickness in terms of the fabricated materials' Pb equivalent and half values.

UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85183457157

U2 - 10.1016/j.jpcs.2023.111828

DO - 10.1016/j.jpcs.2023.111828

M3 - Article

VL - 187

SP - 111828

JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

SN - 0022-3697

ER -