Effect of antimony-oxide on the shielding properties of some sodium-boro-silicate glasses

Zoulfakar, A.M.; Abdelghany, A. M.; Abou-Elnasr, T.Z.A.; Mostafa, A.G.; Salem, Shaaban M.; El-Bahnaswy, H.H.

doi:10.1016/j.apradiso.2017.05.007

Cited by 60 publications

(10 citation statements)

References 18 publications

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“…Fig. 1 shows approximately linear increase in the density with increase of Bi 2 O 3 and the empirical values of the density ρ emp is higher than the experimental one, this gives an evidence for the pure glassy state of the prepared samples [16]. Moreover, Table 1 shows increase the molar volume with increase of Bi 2 O 3 concentration and (V m ) emp is lower than (V m ) exp , which confirm the amorphous nature of the present samples.…”

Section: Density Molar Volume and Hardnesssupporting

confidence: 60%

BORATE GLASSES CONTAINING Bi, Na and Cu OXIDES as RADIATION SHIELDING MATERIALS

2018

Al-Azhar Bulletin of Science

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The basic gamma-ray shielding parameters such as mass attenuation coefficient, mean free path and effective atomic number of glass matrix with composition 0.45B 2 O 3. 0.1Na 2 O. (0.1+x)Bi 2 O 3. (0.35-x)CuO (x=0, 0.07, 0.14, 0.21, 0.28, 0.35) have been determined experimentally. The removal cross-section for fast neutrons is also calculated for the samples. The obtained results are correlated to their structural properties obtained from their infrared spectra.

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Section: Density Molar Volume and Hardnesssupporting

confidence: 60%

BORATE GLASSES CONTAINING Bi, Na and Cu OXIDES as RADIATION SHIELDING MATERIALS

2018

Al-Azhar Bulletin of Science

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“…Sb 2 O 3 takes part in the glass network with trigonal SbO 3 bipyramidal structural units with 5s 2 lone pair of electrons at the apex . Earlier quantitative structural studies like EXAFS, on Sb 2 O 3 glasses indicated that in SbO 3 pyramidal units, Sb–O bond length is reported to be ~2.5Ǻ .…”

Section: Introductionmentioning

confidence: 99%

Structural and physical characteristics of Au₂O₃‐doped sodium antimonate glasses – Part I

et al. 2018

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Na2O‐Sb2O3 glasses doped with different concentrations of Au2O3 were prepared by melt quenching technique and later were heat treated at 800°C for 6 hours. Structural analysis by XRD, XPS, SEM, EDS, and DSC techniques indicated that the samples are embedded with multiple crystallites composed of Sb3+, Sb5+, Au3+ ions, and Au0 metallic particles. These studies have further demonstrated a gradual increasing fraction of Au0 metallic particles with increasing Au2O3 concentration. IR spectral studies suggested increasing the degree of polymerization of the glass network (due to increasing concentration of Sb5+ ions that participate in the glass network with SbVO4 structural units) with rise in the concentration of Au2O3. Optical absorption spectra of the titled samples have exhibited a broad absorption band at about 530 nm predicted due to the surface plasmon resonance (SPR) and exhibited a spectral red shift with increasing intensity with increase in Au2O3 content. Photoluminescence (PL) spectra of the samples recorded (at λexc = corresponding SPR band position) exhibited an emission peak at about 580 nm (identified as being due to interband transition between sp and d bands of gold particles). Overall, the analysis of these results has confirmed increasing concentration of Au metallic particles with increase in Au2O3 content in the titled material. Finally, it is predicted that the presence of higher concentration of gold particles in the polymerized antimonate glass network makes the materials useful for designing different nano dimensional optoelectronic devices.

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“…However, it's clear that S7 glass has the maximum value which confirms that the increment of Tb 3+ ion makes the prepared glasses have better shielding properties. Another important parameter that reflects the properties of the prepared samples is the effective atomic number (Zeff) and is usually computed through the following equation [28,29]…”

Section: Fig 5 Mass Attenuation Coefficients For All Glassesmentioning

confidence: 99%

Investigation of Structural, Thermal Properties and Shielding Parameters of Borosilicate Glasses Doped with Dy3+/ Tb3+ Ions for Gamma and Neutron Radiation Shielding Applications

Abbas

Baki

Leng

et al. 2021

ARFMTS

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In this study, borosilicate host (H) and seven (S1-S7) samples are prepared by traditional melt-quenching technique. The samples are singly (S1, S2) and doubly (S3-S7) doped with deferent contents of Tb3+ and Dy3+ ions. All samples are analyzed and characterized by XRD (x-ray diffraction), ATR-FTIR (Attenuated total Reflectance-Fourier transform infrared) spectroscopy, TGA/DSC (Thermogravimetric analysis/Differential scanning calorimetry), and Raman spectroscopy. Moreover, the radiation shielding parameters of mentioned glasses such as mass attenuation (?/?), mean free path (MFP), and half-value layer (HVL) are evaluated within the energy of 0.015MeV-15MeV. These parameters are theoretically investigated and evaluated by using XCOM, WINXCOM, and Phy-X programs in addition to the other relevant equations. The ATR-FTIR measurement and Raman spectroscopy results confirmed the unit structure of BO3 and BO4 groups as the main compound as well as the Aluminum-oxide (Al-O-Al) and zinc-oxide (ZnO4) bonds. The transition (Tg), onset crystallization (Tx), crystallization (Tc) temperatures, and weight loss were identified from DSC and TGA findings, respectively. Also, the prepared glass shows good stability against crystallization, as reflected by (?T) variation. Furthermore, the radiation shielding parameter findings show good enhancement of the performance of the samples. However, upon these findings, one can say that these glasses could be used and utilized for radiation shielding purposes.

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Effect of antimony-oxide on the shielding properties of some sodium-boro-silicate glasses

Cited by 60 publications

References 18 publications

BORATE GLASSES CONTAINING Bi, Na and Cu OXIDES as RADIATION SHIELDING MATERIALS

BORATE GLASSES CONTAINING Bi, Na and Cu OXIDES as RADIATION SHIELDING MATERIALS

Structural and physical characteristics of Au₂O₃‐doped sodium antimonate glasses – Part I

Investigation of Structural, Thermal Properties and Shielding Parameters of Borosilicate Glasses Doped with Dy3+/ Tb3+ Ions for Gamma and Neutron Radiation Shielding Applications

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Effect of antimony-oxide on the shielding properties of some sodium-boro-silicate glasses

Cited by 60 publications

References 18 publications

BORATE GLASSES CONTAINING Bi, Na and Cu OXIDES as RADIATION SHIELDING MATERIALS

BORATE GLASSES CONTAINING Bi, Na and Cu OXIDES as RADIATION SHIELDING MATERIALS

Structural and physical characteristics of Au2O3‐doped sodium antimonate glasses – Part I

Investigation of Structural, Thermal Properties and Shielding Parameters of Borosilicate Glasses Doped with Dy3+/ Tb3+ Ions for Gamma and Neutron Radiation Shielding Applications

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Structural and physical characteristics of Au₂O₃‐doped sodium antimonate glasses – Part I