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<p>In this study, we introduce a novel magnetoelectric nanocomposite ((1-y) Co<sub>0.8</sub>Cu<sub>0.2</sub>Fe<sub>2</sub>O<sub>4</sub> + (y) SrTiO<sub>3</sub>) with significant potential for mechanical and radiation shielding applications. The addition of SrTiO<sub>3</sub> to the parent nanoferrites results in a decrease in longitudinal modulus (from 6.11 to 4.98 GPa), shear modulus (from 1.19 to 0.92 GPa), and bulk modulus (from 4.52 to 3.75 GPa). These reductions are attributed to changes in density and microstructure with increased SrTiO<sub>3</sub> content. Additionally, the radiation shielding properties of these nanocomposites were examined across a photon energy range of 0.02&#xa0;MeV to 15.00&#xa0;MeV. The results show that the radiation shielding efficiency improves, particularly at energies below 0.15&#xa0;MeV, as the SrTiO<sub>3</sub> content increases. Additionally, the half-value layer of SrTiO<sub>3</sub>-doped nanoferrites was compared with that of standard radiation shielding materials, such as commercial window glass, ordinary concrete, hematite-serpentine concrete, serpentine concrete, RS253 glass from SCHOOT, and RS323 glass from SCHOOT, at an energy level of 0.662&#xa0;MeV. This comparison indicates that SrTiO3-doped nanoferrites are effective materials for shielding against ionizing radiation in radiation protection applications.</p>

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Impacts of SrTiO3 on the elastic moduli and radiation shielding parameters of Co-Cu-Fe2O4-SrTiO3 nanocomposites prepared by double sintering ceramic process

  • 期刊论文

  • 发表日期：

    2025年7月23日

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  • Abeer A. Alghamdi,
  • Amani Saleh Almuslem,
  • Ruaa M. Almotawa,
  • Awatif Alshamari,
  • M. S. Sadeq,
  • E. Abdel‑Fattah,
  • M. A. Abdo

摘要

In this study, we introduce a novel magnetoelectric nanocomposite ((1-y) Co0.8Cu0.2Fe2O4 + (y) SrTiO3) with significant potential for mechanical and radiation shielding applications. The addition of SrTiO3 to the parent nanoferrites results in a decrease in longitudinal modulus (from 6.11 to 4.98 GPa), shear modulus (from 1.19 to 0.92 GPa), and bulk modulus (from 4.52 to 3.75 GPa). These reductions are attributed to changes in density and microstructure with increased SrTiO3 content. Additionally, the radiation shielding properties of these nanocomposites were examined across a photon energy range of 0.02 MeV to 15.00 MeV. The results show that the radiation shielding efficiency improves, particularly at energies below 0.15 MeV, as the SrTiO3 content increases. Additionally, the half-value layer of SrTiO3-doped nanoferrites was compared with that of standard radiation shielding materials, such as commercial window glass, ordinary concrete, hematite-serpentine concrete, serpentine concrete, RS253 glass from SCHOOT, and RS323 glass from SCHOOT, at an energy level of 0.662 MeV. This comparison indicates that SrTiO3-doped nanoferrites are effective materials for shielding against ionizing radiation in radiation protection applications.