Scholarlink

<p>Glass samples with the chemical formula 65B<sub>2</sub>O<sub>3</sub>-15NaF-15ZnO-5Bi<sub>2</sub>O<sub>3</sub> and 65 B<sub>2</sub>O<sub>3</sub>-15NaF-15ZnO-5Bi<sub>2</sub>O<sub>3</sub>-(0.5-x)CuO-xFe<sub>2</sub>O<sub>3</sub> (where x = 0.1, 0.2, 0.3, 0.4, and 0.5 mol.%) were prepared using the traditional melt-quenching method. Physical properties, vibrational modes, dielectric characteristics, and gamma-ray accumulative factors were investigated. The densities of the investigated glasses increased from 3.18 g/cm<sup>3</sup> to 3.30 g/cm<sup>3</sup>. Introducing Fe<sub>2</sub>O<sub>3</sub> ions led to activation of some vibration bands in the borate matrix including the bands at 1358 cm<sup>−1</sup>, 1401 cm<sup>−1</sup>, and 1424 cm<sup>−1</sup>. As the content of iron ions increased, the dielectric permittivity (ɛ′) decreased considerably with an increase in the frequency band up to 600&#xa0;Hz and appeared nearly constant at high specific frequencies. The loss tangent (tanδ) decreased in the low-frequency range. The S5 sample with high density demonstrated the lowest values of exposure and energy absorption buildup factors. Results showed that the proposed samples can be used as γ-ray shielding and dielectric materials.</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

FTIR, Dielectric and Radiation Accumulative Factors of B2O3-NaF-ZnO-Bi2O3 Glasses Reinforced with CuO/Fe2O3

  • 期刊论文

  • 发表日期：

    2025年3月31日

查看全文
  • Norah A. M. Alsaif,
  • Haifa I. Alrebdi,
  • Adel M. El-Refaey,
  • R. A. Elsad,
  • M. S. Shams,
  • W. M. Almutairi,
  • Y. S. Rammah

摘要

Glass samples with the chemical formula 65B2O3-15NaF-15ZnO-5Bi2O3 and 65 B2O3-15NaF-15ZnO-5Bi2O3-(0.5-x)CuO-xFe2O3 (where x = 0.1, 0.2, 0.3, 0.4, and 0.5 mol.%) were prepared using the traditional melt-quenching method. Physical properties, vibrational modes, dielectric characteristics, and gamma-ray accumulative factors were investigated. The densities of the investigated glasses increased from 3.18 g/cm3 to 3.30 g/cm3. Introducing Fe2O3 ions led to activation of some vibration bands in the borate matrix including the bands at 1358 cm−1, 1401 cm−1, and 1424 cm−1. As the content of iron ions increased, the dielectric permittivity (ɛ′) decreased considerably with an increase in the frequency band up to 600 Hz and appeared nearly constant at high specific frequencies. The loss tangent (tanδ) decreased in the low-frequency range. The S5 sample with high density demonstrated the lowest values of exposure and energy absorption buildup factors. Results showed that the proposed samples can be used as γ-ray shielding and dielectric materials.