Physical, structural, optical investigation and shielding featuresof tungsten bismuth tellurite based glasses

Gaikwad, D.K.; Sayyed, M.I.; Botewad, Sunil N.; Obaid, Shamsan S.; Khattari, Z. Y.; Gawai, U. P.; Afaneh, F.; Shirshat, M.D.; Pawar, Pravina P.

doi:10.1016/j.jnoncrysol.2018.09.038

Cited by 121 publications

(29 citation statements)

References 50 publications

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“…c, d, e). Some of the well-formed crystalline phases, such as crystalline apatite (calcium phosphate crystals), are categorized as bioactive phases that are useful for the material to be used in the eld of biodental and bioactive use [19][20][21][22][23][24][25][26].…”

Section: Microhardnessmentioning

confidence: 99%

“…Therefore, substitution of B 2 O 3 with Nd 2 O 3 decreases the molar volume via reducing the concentration of free spaces which have been lled with Nd 3+ ions of larges sizes. Decreasing of open spaces with increasing Nd 2 O 3 means that the packing density should be increased with decreasing the total molar volume of the glass samples [22][23][24]. Then increasing P d (density) and decreasing void spaces in the glass network are considered as the main causes in increasing T g and H v of the investigating samples.…”

Section: Density Molar Volume Free Volume and Packing Densitymentioning

confidence: 99%

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Structural role of Nd2O3 as a dopant material in modified borate glasses and glass ceramics

Shaalan

El-Damrawi

Hassan

et al. 2021

J Mater Sci: Mater Electron

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Glasses in the system xNd 2 O 3 -(46-x)B 2 O 3 -27CaO-24.4Na 2 O-2.6 P 2 O 5 (0 ≤ x ≤ 4 mol%) have been prepared via conventional melt quenching technique. X-ray diffraction (XRD) spectra have showed that the amorphous structure is dominant in glasses of Nd 2 O 3 concentrations ≤ 0.5 mol%. But formation of a more ordered structure is con rmed at higher Nd 2 O 3 values. Result based on differential scanning calorimetry (DSC) shows an increase in glass transition temperature (T g ) with increasing Nd 2 O 3 at expense of B 2 O 3 contents. Vicker hardness (H v ) and density (D) are used to correlate the glass structure with its properties. The measured density is found to be increased whereas the molar volume is decreased with increasing Nd 2 O 3 content. The calculated molar volume (V m ) and free spaces (V f ) are both decreased due to lling process which is suggested to be carried out by Nd 3+ of larger size than that of B 3+ . Decreasing of V m and V f can re ect the increase in bridging bonds in the glass network which in turns results in increasing of both T g and of the investigated compositions.

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Section: Microhardnessmentioning

confidence: 99%

Section: Density Molar Volume Free Volume and Packing Densitymentioning

confidence: 99%

Structural role of Nd2O3 as a dopant material in modified borate glasses and glass ceramics

Shaalan

El-Damrawi

Hassan

et al. 2021

J Mater Sci: Mater Electron

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“…In fact, these rays have a strong probability of damage to human health with respect to time, exposure, and duration parameters. DNA mutations, skin burns, or even cancer problems may raise as a result of exposure to these irradiations [6,7]. From this point of view, the usage of a radiation shielding material against incoming rays has become a major action in order to be protected from the above-mentioned health risks.…”

Section: Introductionmentioning

confidence: 99%

The role of B2O3 in lithium-zinc-calcium-silicate glass for improving the radiation shielding competencies

Kurtuluş¹,

Kavas²

2021

Journal of Boron

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In this study, a preliminary theoretical investigation on lithium-zinc-calcium-silicate (LZCS) glass with a composition of (15-x)Li 2 O-10ZnO-10CaO-65SiO 2 -xB 2 O 3 where x: 0, 3, 6, 9, 12, and 15 mol% was performed to understand the effect of B 2 O 3 on physical, optical, and radiation shielding properties. For this purpose, the L15B0 to L0B15 glass series was designed for evaluating glass density (ρ glass ), refractive index (n), mass attenuation coefficient (µ m ), and half-value layer (Δ 0.5 ) parameters. The theoretical calculations showed that the increasing amount of B 2 O 3 increased the overall ρ glass from 2.9195 to 2.9865 g/cm 3 . Further, the addition of B 2 O 3 in substitution for Li 2 O enhanced the n parameter from 1.6882 to 1.7626. Additionally, BatchMaker software aided to investigate viscosity behavior with the increasing temperature. We found out that the melting point of LZCS glass series ascends with the addition of B 2 O 3 , namely from 1309 to 1624 ºC. On the other hand, the newly developed Phy-X/PSD software computations paved the way for ascertaining µ m and Δ 0.5 . According to the µ m computations, one can clearly state that an increasing trend is observable against the increasing photon energy, but the L0B15 possessed an enhanced shielding ability than that of the remaining at all photon energies. Moreover, we found out that the Δ 0.5 increased with respect to the ascending photon energies, however, the Δ 0.5 was effectively improved with the addition of B 2 O 3 in the order of L0B15

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“…In here, we survey the most applied glassy systems available in the literature as examined by different authors in this area. For example, Gaikwad et al [27] reported the physical, structural, optical investigation and shielding features of tungsten bismuth telluride based glasses. They reported the influence of Bi 2 O 3 on chosen glass structure and showed that the gamma-ray shielding properties improve with increasing Bi 2 O 3 .…”

Section: Introductionmentioning

confidence: 99%

Investigation of radiation protection features of the TeO2–B2O3–Bi2O3–Na2O–NdCl3 glass systems

Eshghi

2020

J Mater Sci: Mater Electron

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In this research, the radiation protection features of bismuth boro-tellurite doped with NdCl 3 glass system in the form of 65B 2 O 3 -12.5Bi 2 O 3 -12.5TeO 2 -(10 − y)Na 2 O-yNdCl 3 with 0 ≤ y ≤ 10 mol% have been investigated by using Phy-X/PSD, XMuDat and XCOM programs. The photon radiation shielding parameters of suggested glasses were calculated in the photon energy range of 0.015-15 MeV. The results showed that the addition of NdCl 3 in the present glass system improves the shielding performance of the glasses system. The obtained results have been plotted and discussed in terms of photon energy. Also, the obtained results were compared together.

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Physical, structural, optical investigation and shielding featuresof tungsten bismuth tellurite based glasses

Cited by 121 publications

References 50 publications

Structural role of Nd2O3 as a dopant material in modified borate glasses and glass ceramics

Structural role of Nd2O3 as a dopant material in modified borate glasses and glass ceramics

The role of B2O3 in lithium-zinc-calcium-silicate glass for improving the radiation shielding competencies

Investigation of radiation protection features of the TeO2–B2O3–Bi2O3–Na2O–NdCl3 glass systems

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