Scholarlink

<p>Glass samples with the formula 75B<sub>2</sub>O<sub>3</sub>-10SiO<sub>2</sub>-5La<sub>2</sub>O<sub>3</sub>-(10-<i>x</i>)MgO-<i>x</i>Fe<sub>2</sub>O<sub>3</sub>, (0 ≤ <i>x</i> ≤ 5 mol%), were manufactured to investigate the effect of substituting Fe<sub>2</sub>O<sub>3</sub> for MgO. The density increases from 3.19 to 4.32 g/cm<sup>3</sup> while the molar volume decreases from 24.62 to 19.56 m<sup>3</sup>/mol. Mechanical properties, including longitudinal (V<sub>L</sub>) and shear (V<sub>T</sub>) wave velocities and elastic moduli, improved consistently with higher Fe<sub>2</sub>O<sub>3</sub> content. In terms of γ-radiation shielding, increasing Fe<sub>2</sub>O<sub>3</sub> content resulted in higher linear attenuation coefficient (LAC) values, primarily because of the increase in density. At 0.015&#xa0;MeV, the LAC (cm<sup>−1</sup>) values are highest, ranging from 43.94 (LMBSFe-0) to 69.811 (LMBSFe-5) while, At 15&#xa0;MeV, values decrease sharply to 0.074 (LMBSFe-0) and 0.1 (LMBSFe-5). At 0.015&#xa0;MeV, mean free path decreased from 0.02276 for (LMBSFe-0) to 0.01432 for (LMBSFe-5) (cm) while, At 15&#xa0;MeV, decreased from 13.5882 for (LMBSFe-0) to 10.04991 for (LMBSFe-5). The decrease in MFP with higher Fe<sub>2</sub>O<sub>3</sub> content reduces photon penetration and enhances glass shielding capability. Therefore, LMBSFe-5 exhibited the best γ-ray shielding performance among the studied compositions.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Influence of Fe2O3 on Radiation Shielding, and Mechanical Properties of La2O3-SiO2-B2O3-MgO- Fe2O3 Glasses

  • 期刊论文

  • 发表日期：

    2025年7月10日

查看全文
  • Dalal Abdullah Aloraini,
  • Aljawhara Almuqrin,
  • Badriah Albarzan,
  • E. A. Abdel Wahab,
  • Kh. S. Shaaban

摘要

Glass samples with the formula 75B2O3-10SiO2-5La2O3-(10-x)MgO-xFe2O3, (0 ≤ x ≤ 5 mol%), were manufactured to investigate the effect of substituting Fe2O3 for MgO. The density increases from 3.19 to 4.32 g/cm3 while the molar volume decreases from 24.62 to 19.56 m3/mol. Mechanical properties, including longitudinal (VL) and shear (VT) wave velocities and elastic moduli, improved consistently with higher Fe2O3 content. In terms of γ-radiation shielding, increasing Fe2O3 content resulted in higher linear attenuation coefficient (LAC) values, primarily because of the increase in density. At 0.015 MeV, the LAC (cm−1) values are highest, ranging from 43.94 (LMBSFe-0) to 69.811 (LMBSFe-5) while, At 15 MeV, values decrease sharply to 0.074 (LMBSFe-0) and 0.1 (LMBSFe-5). At 0.015 MeV, mean free path decreased from 0.02276 for (LMBSFe-0) to 0.01432 for (LMBSFe-5) (cm) while, At 15 MeV, decreased from 13.5882 for (LMBSFe-0) to 10.04991 for (LMBSFe-5). The decrease in MFP with higher Fe2O3 content reduces photon penetration and enhances glass shielding capability. Therefore, LMBSFe-5 exhibited the best γ-ray shielding performance among the studied compositions.