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Summary: In this study, a glass system with tungsten ions was synthesized and its optical properties were analyzed. The results showed that increasing the concentration of tungsten ions in the glass resulted in a slight increase in refractive index and optical band gap, while the half-value layer and mean free path decreased.
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(2023)
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Summary: The conventional melting and annealing procedure was used to manufacture glass matrices with a nominal composition of x La2O3-(20 - x)TiO2-23SiO(2)-57B(2)O(3) and a gradual partial replacement of TiO2 by La2O3. X-ray diffraction (XRD), pulse-echo technique, and differential thermal analysis (DTA) were used to examine the effects of La(2)O(3)3 content on the TiO2-B(2)O(3)3-SiO2 glass. The results showed that the glass transition temperature increased with an increase in La2O3 content, and the elastic properties of the glass also improved.
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Kh S. Shaaban et al.
Summary: Glasses with different BaO content in the formulation 15TiO2-70P2O5-(15-x)Li2O-xBaO (0 < x < 10 mol. %) were fabricated using the melt quenching procedure. The density of the glasses increased and the molar volume decreased with increasing BaO concentration. Ultrasonic velocities (VL & VT) increased as the amount of BaO content increased, indicating higher elastic properties. BaO content was found to be the only factor affecting the radiation shielding phenomenon in the glasses. BaO reinforcement not only increased the density of the glass compositions, but also enhanced their mechanical and gamma-ray shielding properties.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
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Article
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Summary: This study investigates the optical and radiation characteristics of 50.4B(2)O(3) - 30SiO(2) - (19.6 x) Li2O - x Fe2O3 glasses, where x = (0 <= x <= 2 mol%). The structural characteristics of the glasses were determined using XRD. The main objective was to fabricate high density samples by replacing Li2O with Fe2O3 and study their optical and radiation properties. The results showed that the fabricated glasses had higher density and refractive index. As the concentration of Fe2O3 increased, the energy bandgap decreased. The radiation shielding properties were evaluated using Phy-X/PSD, and it was found that G 5 was the best candidate for shielding against gamma radiation.
Article
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Kh S. Shaaban et al.
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K. H. Mahmoud et al.
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JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
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Kh. S. Shaaban et al.
Summary: The melt-quench procedure was used to create bioactive glasses with TiO2 modifications, resulting in significant changes in their optical and radiation shielding characteristics. Adding TiO2 to bioactive glass compositions has a significant impact on their optical and shielding properties. This research has developed a new bioglass system that can be used in various applications, including dental prosthetics and orthopaedic implants.
RADIATION PHYSICS AND CHEMISTRY
(2022)
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Y. S. Rammah et al.
Summary: In this study, glasses with different formulations were fabricated using the melt-quench technique, and their structural and radiation shielding properties were analyzed using XRD method. The results showed that the addition of V2O5 increased the density and elastic modulus of the glasses, while decreasing the molar volume. The glasses with different formulations exhibited varying levels of radiation shielding capacity, with the APPV5.0 glasses showing the best performance.
RADIATION PHYSICS AND CHEMISTRY
(2022)
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Chemistry, Physical
Ateyyah M. Al-Baradi et al.
Summary: The method of melting-quenching was used to manufacture glasses for this study, aiming to understand the structural, thermal, and crystallization features of the glasses. Various analytical methods, including X-ray diffraction and Fourier transform infrared, were utilized to examine the glasses' characteristics. The research found that the thermal stability of the glasses improved with an increase in Y2O3 concentration, and the modifier Y2O3 has a significant effect on the glass system.
Article
Chemistry, Physical
Kh. S. Shaaban et al.
Summary: This study describes the fabrication and spectroscopic characterization of Y3+ doped bismuth titanate borosilicate glasses by the melt quenching technique. XRD spectra analysis was used to establish the composition of the glass system. The optical properties of the glasses, including UV transmission, absorption, polarizability, and basicity, were found to be highly sensitive to the Y2O3 content. Additionally, it was observed that as Y2O3 content increased, the optical bandgap also increased while the Urbach energy decreased. The fabricated glasses were determined to be very semi-covalent based on calculations of various parameters.
Article
Chemistry, Physical
E. A. Abdel Wahab et al.
Summary: The synthesis and physical properties of a quadruple glass system were investigated, with parameters found to be dependent on the tungsten ions present. Optical spectra were measured at room temperature, and it was observed that the optical energy band gap shifted towards lower energy with increasing tungsten ions concentration.
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Chemistry, Physical
Kh S. Shaaban et al.
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Kh S. Shaaban et al.
Summary: This article investigates a bioactive glass system and utilizes TiO2 to enhance its mechanical and thermal properties. Experimental results show that the addition of TiO2 increases the density and velocity of the glass, resulting in improved mechanical and thermal performance.
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A. A. El-Maaref et al.
Summary: In this study, a glass system was produced using the melt-quenching technique and the structural specifics were analyzed using FT-IR techniques. The presence of cerium ions was found to change the structural units in the glass composition. The optical properties of the glass co-doped with Er/Ce were calculated using the Judd-Ofelt theory, and data on optical gains, emission/absorption cross-sections, and optical intensity were provided. The concentration of 0.6 mol% showed the highest values for optical parameters compared to other concentrations.
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Kh. S. Shaaban et al.
Summary: In this study, bioglass samples with different TiO2 content were prepared using the melt-quenching method and their optical and shielding properties were investigated. The results showed that the addition of TiO2 increased the density and improved the optical performance of the glass samples. Moreover, the inclusion of TiO2 enhanced the attenuation performance of the glasses, making them suitable for applications in cosmetics, dental prosthetics, and orthopedic implants.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2022)
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Kh S. Shaaban et al.
Summary: A glass system containing B2O3, CaO, SiO2, P2O5, K2O, and TiO2 was fabricated and studied for its physical properties and elastic moduli. The results showed that the glass has good thermal stability and mechanical properties, making it suitable for applications such as dental prosthetics and orthopedic implants.
Article
Chemistry, Physical
Kh S. Shaaban et al.
Summary: Various samples were fabricated and characterized in the 61B(2)O(3)-19SiO(2)-(20 - x) MoO3- x CeO2 system. The status of the samples was determined using XRD, and the network structure was analyzed using FT-IR. The elastic characteristics of the glasses were evaluated using ultrasonic velocities. The results showed that increasing CeO2 concentrations improved the elastic properties and radiation shielding effect of the samples.
Article
Polymer Science
A. F. Abd El-Rehim et al.
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JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
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A. F. Abd El-Rehim et al.
Summary: The research used melt-quenching techniques to produce a series of glass samples with varying La2O3 content, and their status was examined using an XRD diffractometer. Experimental results showed that with increasing La2O3 content, the mechanical properties and structural units of the glass samples improved.
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E. A. Abdel Wahab et al.
Summary: The molecular structures and optical properties of Sm2O3-doped Lithium Cadmium Phosphate glasses were investigated in this study, with a focus on emission and absorption spectra analysis. Particularly, emission and absorption cross-sections of the 562 nm line were calculated, along with exploring the origins of other emission spectral lines.
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Miysoon A. Alothman et al.
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