Ta2O5-doped zinc-borate glasses: physical, structural, optical, thermal, and radiation shielding properties

Ozturk, S.; İlik, Erkan; Kılıç, Gökhan; Işsever, U. Gökhan

doi:10.1007/s00339-020-04041-z

Cited by 24 publications

(6 citation statements)

References 57 publications

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“…For example, the binding energy of B1s of PBT 1 is located at 192.7 eV, while it shifts to 192.3 eV for PBT 5 and 191.9 eV in PBT 10 . It is well known that B 3+ ions can form two coordination bonds (BO 3 and BO 4 ) in a glass network, and the BO 4 units have higher binding energy than that of BO 3 groups [ 39 ]. Therefore, the decrease in binding energy indicates a decrease in BO 4 and an increase in BO 3 .…”

Section: Resultsmentioning

confidence: 99%

“…In this study, the µ was measured experimentally at 0.015, 0.05, 0.08, 0.3, 0.5, 3, 5, and 10 MeV photon energies by using the Beer–Lambert Equation [ 26 ]:

where I is the intensity of the transmitted γ ray and t is the sample thickness. µ m is related to µ and glass density

according to Equation (3) [ 39 ]:

where f i is the weight fraction and (

is the mass attenuation coefficient MAC of the i th element [ 28 ]. The relative deviation ( RD ) between the data and simulation can be calculated from Equation (4).…”

Section: Resultsmentioning

confidence: 99%

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Ta2O5 Nanocrystals Strengthened Mechanical, Magnetic, and Radiation Shielding Properties of Heavy Metal Oxide Glass

2021

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In this study, for the first time, diamagnetic 5d0 Ta5+ ions and Ta2O5 nanocrystals were utilized to enhance the structural, mechanical, magnetic, and radiation shielding of heavy metal oxide glasses. Transparent Ta2O5 nanocrystal-doped heavy metal oxide glasses were obtained, and the embedded Ta2O5 nanocrystals had sizes ranging from 20 to 30 nm. The structural analysis of the Ta2O5 nanocrystal displays the transformation from hexagonal to orthorhombic Ta2O5. Structures of doped glasses were studied through X-ray diffraction and infrared and Raman spectra, which reveal that Ta2O5 exists in highly doped glass as TaO6 octahedral units, acting as a network modifier. Ta5+ ions strengthened the network connectivity of 1–5% Ta2O5-doped glasses, but Ta5+ acted as a network modifier in a 10% doped sample and changed the frame coordination units of the glass. All Ta2O5-doped glasses exhibited improved Vicker’s hardness, magnetization (9.53 × 10−6 emu/mol), and radiation shielding behaviors (RPE% = 96–98.8%, MAC = 32.012 cm2/g, MFP = 5.02 cm, HVL = 0.0035–3.322 cm, and Zeff = 30.5) due to the increase in density and polarizability of the Ta2O5 nanocrystals.

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Section: Resultsmentioning

confidence: 99%

“…In this study, the µ was measured experimentally at 0.015, 0.05, 0.08, 0.3, 0.5, 3, 5, and 10 MeV photon energies by using the Beer–Lambert Equation [ 26 ]:

where I is the intensity of the transmitted γ ray and t is the sample thickness. µ m is related to µ and glass density

according to Equation (3) [ 39 ]:

where f i is the weight fraction and (

is the mass attenuation coefficient MAC of the i th element [ 28 ]. The relative deviation ( RD ) between the data and simulation can be calculated from Equation (4).…”

Section: Resultsmentioning

confidence: 99%

Ta2O5 Nanocrystals Strengthened Mechanical, Magnetic, and Radiation Shielding Properties of Heavy Metal Oxide Glass

2021

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“…This research examined the degree of shielding [46][47][48][49][50][51][52][53][54] from increase La2O3 at the expense of BaO with a nominal composition of 53B2O3 -2NaF -27PbO -(20 − )BaO -La2O3 (0 ≤ ≥ 15). The mean free path (MFP) was projected as = ( 1) , ℎ .…”

Section: Radiation Shielding Propertiesmentioning

confidence: 99%

Optical, thermal and radiation shielding properties of B2O3–NaF–PbO–BaO–La2O3 glasses

Shaaban

Alomairy

Al-Buriahi

2021

J Mater Sci: Mater Electron

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The techniques of melt-quenching were used to generate 53B2O3 -2NaF -27PbO -(20 − )BaO -La2O3 (0 ≤ ≥ 15) . XRD patterns have established the amorphous character of glass samples. There is clear evidence of the role of La2O3 modifier in the glass network. The thermal characteristics were identified to increase with an increase in La2O3 content. Increasing La2O3 increases the linear and non-linear optical bandgap energy and the Urbach energy. By adding La2O3 to the glass samples, the refractive index, molar polarizability, polarizability, and optical basicity are increased. Theoretically, the bulk modulus and the glass transition temperature increase because of the increase in bond strength. The number of bonds per unit increased with the increase in La2O3 content because of the modifier character of La2O3 in the glass samples. Multiple optical parameters ( ∞), ( o),(1) , ( 3) ) and ( 2 ) as a function of linear and non-linear were obtained. The extent of shielding in this article was examined with the increment in La2O3 at the expense of BaO. The results correspond with similar studies conducted previously.

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“…They are widely used in the processing of dielectric materials, and used in electronic materials. In addition to their use as dielectric components, the presence of transition metal ions in the borate glass network results in a semiconducting character [ 11 , 12 , 13 , 14 , 15 ]. Transition metals are used in glass science in different contexts because of their complex properties that emerge from several valence states [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

In-Silico Monte Carlo Simulation Trials for Investigation of V2O5 Reinforcement Effect on Ternary Zinc Borate Glasses: Nuclear Radiation Shielding Dynamics

et al. 2021

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In the current study, promising glass composites based on vanadium pentoxide (V2O5)-doped zinc borate (ZnB) were investigated in terms of their nuclear-radiation-shielding dynamics. The mass and linear attenuation coefficient, half-value layer, mean free path, tenth-value layer, effective atomic number, exposure-buildup factor, and energy-absorption-buildup factor were deeply simulated by using MCNPX code, Phy-X PSD code, and WinXcom to study the validation of ZBV1, ZBV2, ZBV3, and ZBV4 based on (100−x)(0.6ZnO-0.4B2O3)(x)(V2O5) (x = 1, 2, 3, 4 mol%) samples against ionizing radiation. The results showed that attenuation competencies of the studied glasses slightly changed while increasing the V2O5 content from 1 mol% to 4 mol%. The domination of ZnO concentration in the composition compared to B2O3 makes ZnO substitution with V2O5 more dominant, leading to a decrease in density. Since density has a significant role in the attenuation of gamma rays, a negative effect was observed. It can be concluded that the aforementioned substitution can negatively affect the shielding competencies of studied glasses.

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Ta2O5-doped zinc-borate glasses: physical, structural, optical, thermal, and radiation shielding properties

Cited by 24 publications

References 57 publications

Ta2O5 Nanocrystals Strengthened Mechanical, Magnetic, and Radiation Shielding Properties of Heavy Metal Oxide Glass

Ta2O5 Nanocrystals Strengthened Mechanical, Magnetic, and Radiation Shielding Properties of Heavy Metal Oxide Glass

Optical, thermal and radiation shielding properties of B2O3–NaF–PbO–BaO–La2O3 glasses

In-Silico Monte Carlo Simulation Trials for Investigation of V2O5 Reinforcement Effect on Ternary Zinc Borate Glasses: Nuclear Radiation Shielding Dynamics

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