RETRACTED: Lithium cadmium phosphate glasses doped Sm3+ as a host material for near-IR laser applications

Wahab, E. A. Abdel; El-Maaref, A.A.; Shaaban, Kh. S.; Börcsök, Josef; Abdelawwad, Mohamed

doi:10.1016/j.optmat.2020.110638

Cited by 54 publications

(10 citation statements)

References 43 publications

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“…Y2O3 enhances the host glass matrix's physical structure and mechanical strength. [32][33][34][35][36][37][38]. The existence of Y2O3 enhances the capacity to form glass and reduces devitrification.…”

mentioning

confidence: 99%

Optical Properties of SiO2 – TiO2 – La2O3 – Na2O – Y2O3 Glasses and A Novel Process of Preparing the Parent Glass-Ceramics

El‐Rehim

Wahab

Halaka

et al. 2021

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Quaternary glasses with the composition 50SiO2-25TiO2-5La2O3-(20-x) Na2O-xY2O3 where : (0 ≤ ≥ 10) were synthesized using the melt-quench technique. XRD examined the nature of prepared glasses. UV-spectroscopic of investigated glass system studied at room temperature. Both optical bandgap and refractive index of the present glass have been increased. The polarizability and basicity were determined. Thermal parameter values increased as Y2O3 increased. Under controlling heat, the glass-ceramic were prepared and confirmed using XRD. Glass-ceramics are examined using SEM to evaluate a microstructure. Ultrasonic velocities and elastic-moduli of glass-ceramic samples are increased because of the increase in internal energy. The role of Y2O3 modifier in the glass system is clearly demonstrated. Y2O3 also works as an excellent nucleating agent that can induce crystallizations, supporting in the creation of the sub-phase of glass-ceramics.

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confidence: 99%

Optical Properties of SiO2 – TiO2 – La2O3 – Na2O – Y2O3 Glasses and A Novel Process of Preparing the Parent Glass-Ceramics

El‐Rehim

Wahab

Halaka

et al. 2021

Silicon

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“…Pure phosphate glasses produce no TL signals [80]. However, lithium-doped phosphate glasses characterize a broad TL peak at the rage of 200-300 • C [81]. On the other hand, barium-doped phosphate glasses feature at least two TL peaks, approximately at 220 and 390 • C, which are attributed to Ba 2+ ions [82].…”

Section: Methodsmentioning

confidence: 99%

Ceramics, Glass and Glass-Ceramics for Personal Radiation Detectors

2021

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Different types of ceramics and glass have been extensively investigated due to their application in brachytherapy, radiotherapy, nuclear medicine diagnosis, radioisotope power systems, radiation processing of food, geological and archaeological dating methods. This review collects the newest experimental results on the thermoluminescent (TL) properties of crystalline and glassy materials. The comparison of the physico-chemical properties shows that glassy materials could be a promising alternative for dosimetry purposes. Furthermore, the controlled process of crystallization can enhance the thermoluminescent properties of glasses. On the other hand, the article presents information on the ranges of the linear response to the dose of ionizing radiation and on the temperature positions of the thermoluminescent peaks depending on the doping concentration with rare-earth elements for crystalline and glassy materials. Additionally, the stability of dosimetric information storage (fading) and the optimal concentration of admixtures that cause the highest thermoluminescent response for a given type of the material are characterized. The influence of modifiers addition, i.e., rare-earth elements on the spectral properties of borate and phosphate glasses is described.

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“…Also, the structure becomes more compact by incorporating TiO2, as TiO4 species are produced. Boron transforms from BO3 into BO4 tetrahedra after alkali metal halide is incorporated [25][26][27][28][29][30][31][32]. This increases the coherence of the glass network and the structure stiffening.…”

Section: Investigations Of Ft-irmentioning

confidence: 99%

Structural and radiation shielding simulation of B2O3–SiO2–LiF–ZnO–TiO2 glasses

Mahmoud

Elsayed

Wahab

et al. 2021

J Mater Sci: Mater Electron

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Quaternary glasses with a 59B2O3-29SiO2-2LiF-(10 − ) ZnO-TiO2 composition using the melt-quench techniques were prepared. XRD examined the nature of prepared glasses. The FT-IR spectra was studied for the changes in the structure of these glasses. While the density is increased, the molar volume of the glass system is reduced. The velocities and elastic modulus of these glasses were experimentally and theoretically based on the Makishima-Mackenzie model evaluated. Besides, for the studied glasses, the radiation shielding efficiency was investigated by Phy-X/PSD and XCOM software. These glasses were found to have an abnormal attenuation, structural, and density relationship. The mass attenuation coefficient (μ/ρ), linear attenuation coefficient (LAC), half-value layer (HVL), tenth value layer (TVL), and effective atomic number (Zeff), of glasses, have been designed to simulate for gamma photon energies between 0.015 and 15 MeV. MAC values calculated using Phy-X/PSD and XCOM were compared and was observed in good agreement with the other.

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RETRACTED: Lithium cadmium phosphate glasses doped Sm3+ as a host material for near-IR laser applications

Cited by 54 publications

References 43 publications

Optical Properties of SiO2 – TiO2 – La2O3 – Na2O – Y2O3 Glasses and A Novel Process of Preparing the Parent Glass-Ceramics

Optical Properties of SiO2 – TiO2 – La2O3 – Na2O – Y2O3 Glasses and A Novel Process of Preparing the Parent Glass-Ceramics

Ceramics, Glass and Glass-Ceramics for Personal Radiation Detectors

Structural and radiation shielding simulation of B2O3–SiO2–LiF–ZnO–TiO2 glasses

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