scholarly journals Glass and Glass-Ceramics Based on Weathered Basaltic Rock for Radiation Shielding Applications

Silicon ◽  
2021 ◽  
Author(s):  
G. A. Khater ◽  
H. A. Saudi ◽  
W. M. Abd-Allah
Keyword(s):  
Glass Ceramics ◽  
Basaltic Rock ◽  
Radiation Shielding

scholarly journals Glass and Glass-ceramics based on Weathered Basaltic Rock for Radiation Shielding Applications

2021 ◽  
Author(s):  
Gamal khater ◽  
heba saudi ◽  
wesam Abd-Allah
Keyword(s):  
Glass Ceramics ◽  
Basaltic Rock ◽  
Radiation Shielding ◽  
X Ray Diffraction ◽  
Attenuation Coefficients ◽  
Effective Electron ◽  
Basaltic Rocks ◽  
Protective Shield ◽  
Prepared Glass ◽  
Mass Attenuation

Abstract Different batches of weathered basalt ranging from 100 to 50%, in combination with by-pass cement dust, were used to prepare the glass compositions. Different techniques used, such as differential thermal analysis, X-ray diffraction, density, FTIR, the mass attenuation coefficients, appropriate atomic number (Zeff), and effective electron density (Neff), were examined for the prepared glass and glass-ceramics samples at different photon energies.. In the present study, it was revealed that as the molar volume decreases, the density increases. The experimental and theoretical effects of the mass attenuation component were mostly consistent at different energies. Results revealed that glass samples (WB100) having a higher percentage of basaltic rocks present higher radiation protection than those with a lower rate (WB50). In addition, glass-ceramics displayed enhanced radiation and gamma rays protection than glass. Therefore, we recommend using glass ceramics containing 100% Basalt as a protective shield against rays with less thickness and higher protection.

The impact of PbF2 on the ionizing radiation shielding competence and mechanical properties of TeO2–PbF2 glasses and glass-ceramics

2021 ◽  
Vol 47 (2) ◽  
pp. 2547-2556
Author(s):  
Y.S. Rammah ◽  
I.O. Olarinoye ◽  
F.I. El-Agawany ◽  
A. El-Adawy ◽  
El Sayed Yousef
Keyword(s):  
Mechanical Properties ◽  
Ionizing Radiation ◽  
Glass Ceramics ◽  
Radiation Shielding ◽  
The Impact

Rare earth Co-Doped tellurite glass ceramics: Potential use in optical and radiation shielding applications

2020 ◽  
Vol 46 (11) ◽  
pp. 19198-19208
Author(s):  
Y. Al-Hadeethi ◽  
Moustafa Ahmed ◽  
Saleh H. Al-Heniti ◽  
M.I. Sayyed ◽  
Y.S. Rammah
Keyword(s):  
Rare Earth ◽  
Tellurite Glass ◽  
Glass Ceramics ◽  
Radiation Shielding ◽  
Potential Use ◽  
Co Doped

Chalcogenide glass-ceramics for radiation shielding applications

2020 ◽  
Vol 46 (11) ◽  
pp. 19385-19392 ◽  
Author(s):  
Imed Boukhris ◽  
M.S. Al-Buriahi ◽  
Hakan Akyildirim ◽  
Amani Alalawi ◽  
Imen Kebaili ◽  
...  
Keyword(s):  
Chalcogenide Glass ◽  
Glass Ceramics ◽  
Radiation Shielding

The significant role of CeO2 content on the radiation shielding performance of Fe2O3-P2O5 glass-ceramics: Geant4 simulations study

2021 ◽  
Author(s):  
Miysoon A. Alothman ◽  
Ziyad Awadh Alrowaili ◽  
Sultan Alomairy ◽  
Canel Eke ◽  
Chalermpon Mutuwong ◽  
...  
Keyword(s):  
Significant Role ◽  
Glass Ceramics ◽  
Radiation Shielding

Nuclear radiation shielding using barium borosilicate glass ceramics

2020 ◽  
Vol 142 ◽  
pp. 109437 ◽  
Author(s):  
E. Kavaz ◽  
F.I. El_Agawany ◽  
H.O. Tekin ◽  
U. Perişanoğlu ◽  
Y.S. Rammah
Keyword(s):  
Borosilicate Glass ◽  
Glass Ceramics ◽  
Radiation Shielding ◽  
Nuclear Radiation ◽  
Barium Borosilicate Glass

The Microstructure of Steatite (Protoenstatite)

1985 ◽  
Vol 43 ◽  
pp. 236-237
Author(s):  
W. E. Lee ◽  
A. H. Heuer
Keyword(s):  
High Frequency ◽  
Glass Ceramics ◽  
Magnesium Silicate ◽  
Beam Current ◽  
Glassy Matrix ◽  
Angle Of Incidence ◽  
X Ray ◽  
Mechanical And Electrical Properties ◽  
Argon Ions ◽  
High Temperature Polymorph

IntroductionTraditional steatite ceramics, made by firing (vitrifying) hydrous magnesium silicate, have long been used as insulators for high frequency applications due to their excellent mechanical and electrical properties. Early x-ray and optical analysis of steatites showed that they were composed largely of protoenstatite (MgSiO3) in a glassy matrix. Recent studies of enstatite-containing glass ceramics have revived interest in the polymorphism of enstatite. Three polymorphs exist, two with orthorhombic and one with monoclinic symmetry (ortho, proto and clino enstatite, respectively). Steatite ceramics are of particular interest a they contain the normally unstable high-temperature polymorph, protoenstatite.Experimental3mm diameter discs cut from steatite rods (∼10” long and 0.5” dia.) were ground, polished, dimpled, and ion-thinned to electron transparency using 6KV Argon ions at a beam current of 1 x 10-3 A and a 12° angle of incidence. The discs were coated with carbon prior to TEM examination to minimize charging effects.

Comparison of Lead, Copper and Aluminium as Gamma Radiation Shielding Material through Experimental Measurements and Simulation Using MCNP Version 4c

2018 ◽  
Vol 9 (08) ◽  
pp. 20193-20206 ◽  
Author(s):  
Md. Akhlak Bin Aziz ◽  
Md. Faisal Rahman ◽  
Md. Mahidul Haque Prodhan
Keyword(s):  
Gamma Radiation ◽  
Sodium Iodide ◽  
Experimental Approach ◽  
Radiation Shielding ◽  
Test Material ◽  
Simulation Techniques ◽  
Radiation Sources ◽  
Simulation Monte Carlo ◽  
Shielding Material ◽  
Code Version

The paper compares  Lead, Copper and Aluminium as gamma radiation shielding material using both experimental and simulation techniques. Cs- 137 (662KeV), Na-22 (511KeV) and Na- 22(1274KeV) were used as gamma radiation sources and a sodium iodide (NaI) detector was used to detect the radiation. Variations were noted for detected gamma count rates by changing shielding material thickness. In the experimental approach, thickness was varied by placing sheets of a particular test material one by one. For simulation, Monte Carlo n- Particle (MCNP) code version 4c was used and the geometry of the whole experimental setup was plotted in it. The results were then compared for each test material and it was found that lead is the best shielding material for gamma radiation followed by copper and aluminium.

Energy saving technology for sintering of black bricks from high-siliceous clay

MRS Advances ◽  
2020 ◽  
Vol 5 (61) ◽  
pp. 3123-3131
Author(s):  
Mario Flores Nicolas ◽  
Marina Vlasova ◽  
Pedro Antonio Márquez Aguilar ◽  
Mykola Kakazey ◽  
Marcos Mauricio Chávez Cano ◽  
...  
Keyword(s):  
Low Temperature ◽  
Oxygen Deficiency ◽  
Glass Ceramics ◽  
Total Content ◽  
Ceramic Materials ◽  
Ternary Mixtures ◽  
High Porosity ◽  
Reducing Conditions ◽  
Binary And Ternary Mixtures ◽  
Dark Color

AbstractThe low-temperature synthesis of bricks prepared from high-siliceous clays by the method of plastic molding of blanks was used. For the preparation of brick blanks, binary and ternary mixtures of high-siliceous clays, black sand, and bottle glass cullet were used. Gray-black low-porosity and high-porosity ceramics was obtained by sintering under conditions of oxygen deficiency. It has been established that to initiate plastic in mixtures containing high-siliceous clay, it is necessary to add montmorillonite/bentonite additives, carry out low-temperature sintering, and introduce low-melting glass additives with a melting point ranging from 750 to 800 °C. The performed investigations have shown that the sintering of mixtures with a total content of iron oxide of about 5 wt% under reducing conditions at Tsint. = 800°C for 8 h leads to the formation of glass ceramics consisting of quartz, feldspars, and a phase. The main sources of the appearance of a dark color is the formation of [Fe3+O4]4- and [Fe3+O6]9- anions in the composition of the glass phase and feldspars. By changing the contents of clay, sand, and glass in sintering, it is possible to obtain two types of ceramic materials: (a) in the form of building bricks and (b) in the form of porous fillers.

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