Structure, thermal and crystallization behavior of lead-bismuth silicate glasses

Hordieiev, Yu.S.; Zaichuk, A.V.

doi:10.1016/j.rinma.2023.100442

Cited by 4 publications

(4 citation statements)

References 36 publications

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“…For samples PS1-PS4, a shift of the absorption band centered at 479 cm −1 , associated with the bending vibration of Pb-O-Pb and O-Pb-O angles in tetrahedral units [PbO 4 ], towards higher wavenumbers is observed, while for higher concentrations of SiO 2 , namely in samples PS5-PS9, the shift of these bands towards lower wavenumbers is noted, indicating the network-forming role of SiO 2 . [7,8,12,14] and SiO 2 [19][20][21]. The band located at 672 cm −1 , corresponding to the stretching vibrations of Pb-O bonds in [PbO 4 ] structural units, exhibits heightened intensity as the SiO 2 concentration increases.…”

Section: Resultsmentioning

confidence: 99%

“…The fabrication process for Heavy Metal Oxide Glasses (HMOGs) is straightforward, facilitated by the comparatively expansive glass-forming region. Moreover, binary network-forming glasses exhibit outstanding optical, thermal, and mechanical properties, making them immensely valuable for a multitude of applications in electronics, optoelectronics, and the storage of nuclear waste [14]. A notable subset of binary network-former glasses revolves around the lead-silicate system.…”

Section: Introductionmentioning

confidence: 99%

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Glass-Forming Ability, Chemical Durability, and Structural Properties of Lead Dioxide-Silicate Glass System

Zagrai,

Gavrea,

Macavei

et al. 2024

Crystals

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The present study aimed to test the solubility of SiO2 in a PbO2 host glass matrix. The new glass system with chemical composition xSiO2∙(100-x)∙PbO2 (in mol%) was obtained at low temperature using the melt-quenching technique. The method proposed for the characterization of the glass system includes X-ray diffraction (XRD), Differential Scanning Calorimetry (DSC), inductively coupled plasma mass spectrometry (ICP-Ms), Fourier Transform Infrared (FTIR), and Electron Spin Resonance (ESR) spectroscopy. Understanding the relationship between the oxide composition, structure, chemical durability, and thermal characteristics of obtained materials is essential for further developing the new glass crystalline material (GCM) compositions with specific desired properties.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Glass-Forming Ability, Chemical Durability, and Structural Properties of Lead Dioxide-Silicate Glass System

Zagrai,

Gavrea,

Macavei

et al. 2024

Crystals

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“…They furnish crucial insights into how glass behaves thermally under varying conditions, a pivotal factor in determining its suitability for specific applications. The oxide composition of the glass emerges as a foundational determinant in shaping these properties [2]. Figure 1 illustrates how the coefficient of thermal expansion (CTE), dilatometric softening temperature (Td), and glass transition temperature (Tg) change with varying compositions in the bismuth borosilicate system.The results obtained from dilatometry indicate that the glass transition temperature and the dilatometric softening temperature decrease while the coefficient of thermal expansion increases as the Bi2O3 content increases.…”

mentioning

confidence: 99%

“…dilatometric softening temperatures can be to the modifying effect of Bi2O3 on the borosilicate glass network, which leads to decreased cross-linking and lower resistance to deformation [2]. Conversely, the increased CTE values can be explained by the weaker glass structure being more susceptible to thermal expansion.…”

mentioning

confidence: 99%

Thermal Properties of Bismuth Borosilicate Glasses

Hordieiev

2023

Grundlagen Der Modernen Wissenschaftlichen Forschung

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Bismuth borosilicate glasses represent a fascinating subset within the realm of heavy-metal oxide glasses. The unique properties and applications of these glasses make them a subject of considerable interest and study in materials science. This particular class of glasses leverages the distinctive characteristics of bismuth, known for its high atomic number and diverse range of optical properties. When combined with boron and silicon, these glasses exhibit a blend of features that render them suitable for a wide array of applications, spanning from optics to nuclear shielding. Research on bismuth-containing borate systems has stimulated the development of an entire series of new glass compositions distinguished by high fusibility, unique electric properties, high region of transmission, and nonlinear-optical properties [1]. Such glasses also find application as temperature sensors in optical and electronic instrument engineering and nanocomposites' development. Bismuth borosilicate glasses have been studied extensively for their optical properties. They have a high refractive index, which makes them useful for optical fibers and lenses. They also exhibit nonlinear optical properties, which make them useful for optical switching and frequency conversion. In addition, bismuth borosilicate glasses have been used as radiation shielding materials due to their high atomic number and density.In order to realize the full potential of these unique glasses, it is critical to understand composition-structure property relationships. This impelled us to investigate the impact of chemical composition on the thermal properties of bismuth borosilicate glasses.In the realm of materials science and engineering, thermal expansion, glass transition temperature, and dilatometric softening temperature hold immense significance. They furnish crucial insights into how glass behaves thermally under varying conditions, a pivotal factor in determining its suitability for specific applications. The oxide composition of the glass emerges as a foundational determinant in shaping these properties [2]. Figure 1 illustrates how the coefficient of thermal expansion (CTE), dilatometric softening temperature (Td), and glass transition temperature (Tg) change with varying compositions in the bismuth borosilicate system.The results obtained from dilatometry indicate that the glass transition temperature and the dilatometric softening temperature decrease while the coefficient of thermal expansion increases as the Bi2O3 content increases. The changes in Tg, Td, and CTE values in oxide glasses can be attributed to variations in bond strength, cross-link density, and packing density of the glass. The observed decrease in Tg and Td values and increase in CTE values can be explained by replacing stronger and more rigid Si-O and B-O bonds with weaker and more flexible Bi-O bonds [1]. These results suggest that the Bi2O3 content plays a significant role in determining the thermal behavior of the glass. The observed decrease in both the glass transition and

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Preparation and characterization of strontium-doped bismuth borate glasses

Hordieiev,

Zaichuk

2024

DJNB

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Employing the melt quenching method, new bismuth borate glass compositions denoted as (40+x)Bi2O3–(60-x-y)B2O3–ySrO, with x and y ranging between 0 to 20 mol%, were synthesized. The X-ray Diffraction analyses confirmed the amorphous nature of all glass samples, indicating the absence of long-range order typically seen in crystalline materials. Concurrently, the Fourier-transform Infrared Spectroscopy examinations unveiled the existence of fundamental structural units within the glasses, including BO3 and BO4 trigonal and tetrahedral units, as well as BiO3 and BiO6 polyhedra, suggesting a complex network structure. Differential Thermal Analysis (DTA) and dilatometry assessed the glasses' thermal properties. DTA demonstrated the glasses' high thermal stability, with a stability value of up to 106°C, noting that stability improves with more SrO. Dilatometry analyses revealed these glasses exhibit a high thermal expansion coefficient, ranging from 8.69 to 10.7 ppm/°C, alongside relatively low glass transition temperatures between 362 and 432°C and dilatometric softening temperatures spanning from 380 to 447°C. Density measurements were conducted, followed by molar volume and oxygen packing density calculations, to glean further insights into the samples. Compared to other heavy-metal oxide glasses, the glasses examined in this study exhibited notably high-density values, ranging between 6.279 and 7.476 g/cm3 .

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Structure, thermal and crystallization behavior of lead-bismuth silicate glasses

Cited by 4 publications

References 36 publications

Glass-Forming Ability, Chemical Durability, and Structural Properties of Lead Dioxide-Silicate Glass System

Glass-Forming Ability, Chemical Durability, and Structural Properties of Lead Dioxide-Silicate Glass System

Thermal Properties of Bismuth Borosilicate Glasses

Preparation and characterization of strontium-doped bismuth borate glasses

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