Structural, and optical characterizations of Cu/Fe@Na2B4O7 oxide glass: For shielding and optical applications

Gomaa, Hosam M.; Abul-Magd, Ashraf A.; Abu-Khadra, Ahmad S.; Yahia, I.S.; Zahran, H. Y.

doi:10.1016/j.ijleo.2022.169170

Cited by 5 publications

(1 citation statement)

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“…As the concentration of CuO increases, the anticipated ionic concentration, field strength, and molar volume increase. Whereas the associated ionic radius and polaron radius decrease (12) It was discovered that the glass transition temperature of the 25 PbO + 15 B 2 O 3 + 0.1 CuO + (59.9-x) SiO 2 :x Bi 2 O 3 glasses was 420 • C, and that the value of T g increased as the concentration of Bi 2 O 3 increased. The value of the exothermic peak, which is seen at the glass crystallization temperature (T c ) of roughly 850 • C, rises with the concentration of Bi 2 O 3 (13) .…”

Section: Resultsmentioning

confidence: 99%

Characterization of a Novel System of Bismuth Lead Borosilicate Glass Containing Copper

Krishna,

Guntu,

Shareefuddin

et al. 2024

IJST

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Objectives: The primary objective of the present investigation was to examine the impact of Bi3+ ions on the optical, radiation shielding, dielectric and structural characteristics of lead borosilicate glasses doped with CuO. Method: In this view, we planned to utilize the conventional rapid melt quenching method to produce glasses with the following chemical composition: 25 PbO + 15 B2O3 + 0.1 CuO + (59.9-x) SiO2 :x Bi2O3 (0≤x≤12). Findings: The samples' non-crystalline characteristics were validated through XRD and SEM analysis, respectively, while their glass-forming capabilities were assessed through DTA studies. Utilizing the FT–IR and Raman analyses, the numerous structural units were determined. According to the findings of the FT-IR, and Raman analyses, the degree of disorder in the glass network increased. By means of optical absorption experiments, the optical properties of glasses were determined. The results obtained from optical absorption spectral investigations indicated that the concentration of octahedral Cu2+ ions increased gradually as the Bi2O3 concentration increased to 12 mol %. The dielectric properties of the glasses, suggested that the dielectric constant values of glasses containing Bi2O3 in concentrations below 12 mol% increase gradually. Additionally, the radiation shielding properties of the glasses are investigated. The values of radiation protection ability found to be purely function of Bi2O3 concentration. Novelty: The results suggest that the glasses' thermal stability, dielectric constant, optical band gap and radiation shielding ability values purely function of Bi2O3 concentration. Keywords: Borosilicate glasses, Thermal stability, Optical absorption, Radiation shielding properties, Dielectricsq

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Section: Resultsmentioning

confidence: 99%