Effect of Bi2O3 on physical, optical and structural studies of ZnO–Bi2O3–B2O3 glasses

Saritha, D.; Markandeya, Y.; Salagram, M.; Vithal, M.; Singh, Amritpal; Bhikshamaiah, G.

doi:10.1016/j.jnoncrysol.2008.09.017

Cited by 240 publications

(93 citation statements)

References 21 publications

(30 reference statements)

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“…The glass samples in the system 40SiO 2 · xZnO · (60 − x)Bi 2 O 3 with composition x = 0, 5,10,15,20,25,30,35, and 40 were prepared using analar grade SiO 2 , Bi 2 O 3 , and ZnO chemicals, by conventional melt-quench method. However, the samples with x (ZnO content) higher than 40 had also been tried to synthesize but we could not succeed.…”

Section: Methodsmentioning

confidence: 99%

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Structural and Physical Properties of ZnO Modified Bismuth Silicate Glasses

et al. 2012

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Zinc bismuth silicate glasses with compositions 40SiO 2 · xZnO · (60 − x)Bi 2 O 3 (x = 0, 5, 10, 15, 20, 25, 30, 35, and 40) have been prepared by conventional melt-quench technique and the solubility limit of zinc in bismuth silicate glass system has been estimated using X-ray diffraction technique. Density has been measured using Archimedes' principle; with increase in ZnO in the samples, the molar volume and density are found to decrease. The glass transition temperature (T g ) has been determined by using differential scanning calorimetry (DSC) and is observed to increase with increase in ZnO content. Raman and FTIR spectra have been recorded at room temperature and the analysis of Raman and FTIR shows that in all the glass compositions, asymmetric and symmetric stretched vibrations of Si-O bonds in SiO 4 tetrahedral units exist and with decrease in Bi 2 O 3 , the contribution of symmetric vibrations begins to dominate which results in increased compactness of the glass structure.

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Section: Methodsmentioning

confidence: 99%

“…SiO 2 in its various amorphous forms has an extremely wide spectrum of industrial applications [7]. Several reports on ZnO [8][9][10][11][12][13][14], but physical and structural studies of SiO 2 -ZnO-Bi 2 O 3 are rare.…”

Section: Introductionmentioning

confidence: 99%

Structural and Physical Properties of ZnO Modified Bismuth Silicate Glasses

et al. 2012

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“…As the cation concentration increases, bridging oxygens develop bonds with Bi 3+ and the glass network breaks down. This leads to decrease in optical band gap [16]. Refractive index increases with increase in cationic polarizability.…”

Section: Uv-visible Studiesmentioning

confidence: 97%

Gamma Ray Shielding and Structural Properties of Bi2O3-B2O3-Na2WO4 Glass System

Dogra¹,

Singh²,

Kaur³

et al. 2017

ujpa

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Gamma ray sources and radioactive materials in several sectors including nuclear power plants, nuclear reactors, nuclear medicine, agriculture and industry have harmful effects on humans and it is essential to provide shield against gamma radiations. Gamma radiations are highly penetrating electromagnetic radiations in the environment. The present work is aimed at exploring new glass composition for gamma ray shielding applications. Gamma ray shielding properties of the composition x Bi 2 O 3 -0.6 B 2 O 3 -(0.4 -x)Na 2 WO 4 .2H 2 O where x = 0.1 to 0.3 (in mole fraction) have been studied by calculating mass attenuation coefficients and half value layer parameters at photon energies 662, 1173 and 1332 keV using XCOM computer software developed by National Institute of Standards and Technology. Higher values of mass attenuation coefficients and lower values of HVL than barite concrete indicate the glass system as better gamma radiation shield. Density, molar volume, XRD and UV-Visible studies have been performed to study the structural properties of the prepared glass system. From the analysis of obtained results, it is reported that density of the prepared glass samples increases with the content of heavy metal oxide Bi 2 O 3 . XRD studies confirm the amorphous nature of the glass composition. It has been concluded that bismuth borate tungstate glasses are better shields for γ-radiations in comparison to the standard nuclear radiation shielding concretes and commercially available glasses.

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“…According where, ∆E is usually interpreted as the width of the tail of the localized states in the band gap [9]. Generally Urbach energy values were calculated by taking the log of absorption coefficient (⍺) and by extrapolating the linear part of the graph (Fig.…”

Section: Absorption Spectramentioning

confidence: 99%

Optical and Physical Analysis of Nd3+ Doped Borosilicate Glasses

Sharma¹,

Goyal²,

Pal³

et al. 2015

JMSE-B

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Abstract:Nowadays rare earth doped glasses are becoming very interesting among researchers due to their physical and optical properties. In the present work physical and optical parameters were computed for borosilicate glasses doped with Neodymium ion. The glass samples were prepared by conventional melt quenching technique. Their final composition is (50 -x) B 2 O 3 -(10 + x) SiO 2 -10 Na 2 O -20PbO -10 ZnO-0.3 Nd 2 O 3 (where x = 0, 5, 10, 15, 20, 25, 30, 35 and 40). The amorphous nature of the glass samples was confirmed by XRD (X-ray diffraction). Composition and functional groups of the glass samples were confirmed by EDX (Energy-dispersive X-ray spectroscopy) and FTIR (Fourier transform infrared spectroscopy) respectively. SEM (Scanning Electron microscopy) and TEM (Transmission electron microscope) images were recorded. Absorption spectra have been recorded at room temperature in UV-VIS-NIR region. Energy and intensity parameters were computed for Nd 3+ doped glasses. Physical parameters were measured for the present glass. The optical energy band gap was computed for all different concentration of SiO 2 contents. It was found that with increasing of the concentration of SiO 2 contents, the values of physical parameters decreases.

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Effect of Bi2O3 on physical, optical and structural studies of ZnO–Bi2O3–B2O3 glasses

Cited by 240 publications

References 21 publications

Structural and Physical Properties of ZnO Modified Bismuth Silicate Glasses

Structural and Physical Properties of ZnO Modified Bismuth Silicate Glasses

Gamma Ray Shielding and Structural Properties of Bi<sub>2</sub>O<sub>3</sub>-B<sub>2</sub>O<sub>3</sub>-Na<sub>2</sub>WO<sub>4</sub> Glass System

Optical and Physical Analysis of Nd3+ Doped Borosilicate Glasses

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