An ultrasonic study on ternary xPbO–(45-x)CuO–55B2O3 glasses

El-Moneim, Amin Abd; Eltohamy, Mohamed; Afifi, H.; Gaafar, M.S.; Atef, Asmaa

doi:10.1016/j.ceramint.2021.06.157

Cited by 18 publications

(5 citation statements)

References 54 publications

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“…473 and z = 0 . 094) glasses 48 . This supports the suitability of Abd El-Moneim’s approach 44 for understanding the Poisson's ratio data of glasses.…”

Section: Resultsmentioning

confidence: 99%

“…The d values of the present xCdO-(1−x)[0.5PbO + 0.5Bi 2 O 3 ] glasses lie between 1.99 and 2.18, which suggests 2D structures. One way to determine the elasticity of glasses is by studying Poisson's ratio-fractal bond connectivity correlation on the basis of Abd El-Moneim's approach 44 , according to the following equation: 48 . This supports the suitability of Abd El-Moneim's approach 44 for understanding the Poisson's ratio data of glasses.…”

Section: Sample Codementioning

confidence: 99%

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XRD, FTIR and ultrasonic investigations of cadmium lead bismuthate glasses

Abd El-Moneim,

Azooz,

Hashem

et al. 2023

Sci Rep

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Cadmium lead bismuthate glasses in the system xCdO–(1−x)[0.5PbO + 0.5Bi2O3](40 mol% ≤ x ≤ 90 mol%) were successfully prepared by melt-quenching method. The structural and elastic properties have been investigated using XRD, FTIR and ultrasonic pulse–echo techniques. The XRD patterns confirmed the amorphous nature of the samples prepared. Density and ultrasonic velocity data were used to evaluate various elastic properties. Addition of CdO gave rise to decreased density and molar volume and increased elastic moduli, micro-hardness, and Debye temperature. The FTIR analysis revealed that increasing CdO content enhances the BiO6 octahedral sites at the expense of the BiO3 and PbO4 units. This results in the formation of Pb–O–Bi(6) and Bi(3)–O–Bi(6) linkages in the glass network, which stiffen the structure and improve the elastic properties. A correlation between elastic and compositional parameters was achieved on the basis of theories and approaches in the field.

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“…473 and z = 0 . 094) glasses 48 . This supports the suitability of Abd El-Moneim’s approach 44 for understanding the Poisson's ratio data of glasses.…”

Section: Resultsmentioning

confidence: 99%

Section: Sample Codementioning

confidence: 99%

XRD, FTIR and ultrasonic investigations of cadmium lead bismuthate glasses

Abd El-Moneim,

Azooz,

Hashem

et al. 2023

Sci Rep

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“…In terms of the ultrasonic study of a glass matrix, the elastic moduli can be determined experimentally by measuring the density and the ultrasonic velocities. Meanwhile, the theoretically computed elastic moduli can be achieved in terms of the measured density and some physical parameters such as the packing density, the dissociation energy, the number of bonds per unit volume, and the average cross-link density, etc [13,19,30]. The composition-density relationship of the explored glasses is depicted in figure 5, and their values are tabulated in table 1.…”

Section: Resultsmentioning

confidence: 99%

“…To promote the preceding discussions, the computation of the elastic parameters of the explored glass network can be accomplished through the application of two famous models in the field of glass science, namely, the bond-compression model and Makishima-Mackenzie's model. The details of the computation procedures according to these models were described in many articles, for example, Saddeek [21,22] and Abd El-Moneim et al [20,30]. The decisive parameters of the computation of the elastic moduli (bulk modulus, K TB , and Young's modulus Y TB ) according to the bond compression model are the molar volume (U m ), the number of bonds per unit volume (LL), the average cross-link density (nn), and the bond-length(rb), whereas, according to Makishima and Mackenzie model the parameters are the packing density (Pa t ), and the energy of dissociation of the bonds (Gd) of the constituents of the glass network for the computation of the moduli (bulk modulus, K TM , and Young's modulus Y TM ).…”

Section: Resultsmentioning

confidence: 99%

Structural and ultrasound studies of Pr₂O₃ settlement in AlNaBi–phosphate spectacles

El-Denglawey¹,

Saddeek²,

Aly³

et al. 2022

Phys. Scr.

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Pr2O3 doped bismuth-phosphate glasses have been produced via an ordinary melt quenching tool. Glasses have a chemical content (5–x) Al2O3–15Na2O–20Bi2O3–60 P2O5 –xPr2O3 with x values between 0 and 2 mol%. The structural and mechanical features of the prepared phosphate-based glasses were investigated. The XRD spectra confined the amorphous type of these glasses. Furthermore, the influence of Pr2O3 on the mechanical features has been explored and related to the structure. The relationship between structural variations and the contents of Pr2O3 has been investigated in terms of FTIR and by the determination of the density and the ultrasonic velocity. The density and the ultrasonic velocities were utilized to calculate the elastic moduli of the glasses. The acquired results indicate that the ultrasonic velocity and the elastic moduli increase as a function of Pr2O3 in the whole explored studied glasses. The analysis of FTIR spectra refers that Pr2O3 is interstitial settled in the phosphate network with [PrO7] associated with covalent Pr–O–P bonds, whereas Bi2O3 and Al2O3 settle on the network with [BiO6], and [AlO6] units. These experimental features coincide with a compact structure and act in a manner that Pr2O3 incorporates the glassy network with plenty of bridging oxygen atoms. These arguments encourage the use of these glasses in radiation shielding materials.

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“…Investigated lead-copper-borate xPbO-(45-x)CuO-55B2O3 glasses, where x = 5, 10, 15, 20, 25, 30, 35 and 40mol%, were prepared by employing the melt quenching technique as described in (16).…”

Section: Samples Preparationmentioning

confidence: 99%

Acoustic Debye Temperature of Ternary PbO–CuO–B2O3 Glasses

Nesiem

eldebawi

Ragab

et al. 2022

Bulletin of Faculty of Science, Zagazig University

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Acoustic Debye temperature of the ternary borate glass system xPbO-(45-x)CuO-55B2O3 was studied in the composition range x = 5 -40 mol % by using ultrasonic pulse-echo technique. The composition dependence revealed broad humps at 20mol % PbO. Below 20mol%,all Pb+2 ions are considered to be entering the borate network as a glass modifier. This transforms the borate network from an open structure to a denser three-dimensional structure due to BO3 → BO4 conversion. The addition of PbO beyond 20 mol% results in the formation of PbO4 structural units and B-O-Pb linkages in addition to NBOs. This weakness the glass structure and decreases the acoustic Debye temperature. A correlation between acoustic Debye temperature and compositional parameters was achieved when the change in boron coordination numbers is taking into account. In Egypt, the shortage of freshwater resources and their pollution constitutes a growing concern. Due to the uncensored use of pesticides in the agricultural regions of Egypt, the contamination risks of ground water increase periodically in planting seasons. Therefore, the present work aims to monitor the occurrence of organochlorine pesticides (OCPs) residues and heavy metals in five ground water samples collected from agricultural area with long-term pesticide application history in Belbis region, El-Sharqia, Egypt. Water samples were processed using a solid-phase extraction technique and gas chromatograph equipped with mass spectrometry (GC-MS). Results revealed that, the concentrations of OCPs in groundwater are in the limits except only 0.65 μg/L of p,p'-DDT recorded in ground water at Hassan Bieh village location, Belbis region, El-Sharqia, Egypt. Levels of iron and manganese in (Elnoba and Awlad Mahnaa) ground water samples were found to be much higher than the limits of Egyptian quality standards. The other elements in this study were found in the limits. The turbidity in 3 site (Hassan Beih, Elnoba and Awlad Mahnaa) villages has high values (4.7, 28.4 and 4.4), respectively. TDS values in two sites (Hassan Beih and Awlad Mahnaa) villages showing values above the 1000 mg/L limit.

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An ultrasonic study on ternary xPbO–(45-x)CuO–55B2O3 glasses

Cited by 18 publications

References 54 publications

XRD, FTIR and ultrasonic investigations of cadmium lead bismuthate glasses

XRD, FTIR and ultrasonic investigations of cadmium lead bismuthate glasses

Structural and ultrasound studies of Pr₂O₃ settlement in AlNaBi–phosphate spectacles

Acoustic Debye Temperature of Ternary PbO–CuO–B2O3 Glasses

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An ultrasonic study on ternary xPbO–(45-x)CuO–55B2O3 glasses

Cited by 18 publications

References 54 publications

XRD, FTIR and ultrasonic investigations of cadmium lead bismuthate glasses

XRD, FTIR and ultrasonic investigations of cadmium lead bismuthate glasses

Structural and ultrasound studies of Pr2O3 settlement in AlNaBi–phosphate spectacles

Acoustic Debye Temperature of Ternary PbO–CuO–B2O3 Glasses

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Product

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Structural and ultrasound studies of Pr₂O₃ settlement in AlNaBi–phosphate spectacles