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<p>This study examined the effect of copper sulfate content on the structural, physical, and shielding attenuation characteristics of silicate glass–ceramics with composition <i>x</i>Cu(SO<sub>4</sub>)-(100 − <i>x</i>)SiO<sub>2</sub> where <i>x</i> = 10, 25, 50, and 75&#xa0;mol%. The samples were prepared using the hydrothermal method and investigated using various techniques, including X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). The X-ray patterns indicated sufficient crystalline phase formation, possibly due to CuSO<sub>4</sub> promoting the growth of both CuSiO<sub>3</sub> and CuSO<sub>4</sub> chalcocyanite crystalline phases. The FTIR spectra revealed some absorption bands attributed to the vibrational modes of distinct functional groups, including SiO<sub>4</sub>, SO<sub>4</sub>, and CuO<sub>4</sub>. Available data of density measurement (<i>d</i><sub>s</sub>), molar volume (<i>V</i><sub>m</sub>), packing density (<i>P</i><sub>d</sub>), and free volume (<i>V</i><sub>f</sub>) have been analyzed. Both density (<i>d</i><sub>s</sub>) and molar volume (<i>V</i><sub>m</sub>) of the as-prepared samples were increased with increasing CuSO<sub>4</sub> concentrations. The density (<i>d</i><sub>s</sub>) was increased from 3.8 to 4.14&#xa0;g/cm<sup>3</sup>, while the molar volume (<i>V</i><sub>m</sub>) was increased from 15.07 to 32.53 cm<sup>3</sup>/mol. In contrast, the packing density decreased from 0.89 to 0.77&#xa0;g/cm<sup>3</sup>. A specialized computational tool (the Phys-X/PSD program) was also employed to calculate shielding parameters over an energy range from 0.015 to 15&#xa0;MeV. The mass attenuation coefficient fluctuated between 0.021- 5.81 cm<sup>2</sup>/g for Si and 0.025—30.26 cm<sup>2</sup>/g for 75SiCuS samples. The 75SiCuS glass–ceramic sample with a density of 4.141&#xa0;g/cm<sup>3</sup> was found to have superior gamma-ray shielding characteristics due to the highest contribution of copper sulfate.</p>

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Structural, physical and shielding attenuation properties of silicate glass ceramics containing copper sulfate

  • 期刊论文

  • 发表日期：

    2025年5月10日

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  • F. Gharghar,
  • M. A. Madshal,
  • G. El Damrawi,
  • M. I. Abdelghany

摘要

This study examined the effect of copper sulfate content on the structural, physical, and shielding attenuation characteristics of silicate glass–ceramics with composition xCu(SO4)-(100 − x)SiO2 where x = 10, 25, 50, and 75 mol%. The samples were prepared using the hydrothermal method and investigated using various techniques, including X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). The X-ray patterns indicated sufficient crystalline phase formation, possibly due to CuSO4 promoting the growth of both CuSiO3 and CuSO4 chalcocyanite crystalline phases. The FTIR spectra revealed some absorption bands attributed to the vibrational modes of distinct functional groups, including SiO4, SO4, and CuO4. Available data of density measurement (ds), molar volume (Vm), packing density (Pd), and free volume (Vf) have been analyzed. Both density (ds) and molar volume (Vm) of the as-prepared samples were increased with increasing CuSO4 concentrations. The density (ds) was increased from 3.8 to 4.14 g/cm3, while the molar volume (Vm) was increased from 15.07 to 32.53 cm3/mol. In contrast, the packing density decreased from 0.89 to 0.77 g/cm3. A specialized computational tool (the Phys-X/PSD program) was also employed to calculate shielding parameters over an energy range from 0.015 to 15 MeV. The mass attenuation coefficient fluctuated between 0.021- 5.81 cm2/g for Si and 0.025—30.26 cm2/g for 75SiCuS samples. The 75SiCuS glass–ceramic sample with a density of 4.141 g/cm3 was found to have superior gamma-ray shielding characteristics due to the highest contribution of copper sulfate.