On the structure of glass of the PbO-B2O3-SiO2 and CdO-SiO2-B2O3 systems

Golubkov, V. V.; Onushchenko, P. A.; Stolyarova, V. L.

doi:10.1134/s1087659613060059

Cited by 7 publications

(3 citation statements)

References 7 publications

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“…As the molar ratio of B 2 O 3 (GeO 2 ):SiO 2 decreases the influence of Bi-O-Ge and Bi-O-Si bonds on the negative deviations from the ideality of these melts is more valid. The features of structural description of these glass-forming melts obtained as the result of modeling were successfully confirmed using X-ray scattering method [25]- [27].…”

Section: Resultsmentioning

confidence: 60%

Vaporization and Thermodynamics of Glass-Forming Oxide Melts: Mass Spectrometric Study and Modeling

Stolyarova¹

2015

MSCE

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Information on the vaporization processes and thermodynamic properties of glass-forming oxide melts in the systems MgO-B2O3-SiO2, CaO-B2O3-SiO2, SrO-B2O3-SiO2, BaO-B2O3-SiO2, PbO-B2O3-SiO2, CdO-B2O3-SiO2, ZnO-B2O3-SiO2, Bi2O3-B2O3-SiO2 and Bi2O3-GeO2-SiO2 together with the earlier obtained data is discussed. These data were obtained by high-temperature mass spectrometric method. Various types of vapor species were found over oxide systems studied such as the associated, dissociated and polymerized products of vaporization. The regularities of the vaporization of the binary and multicomponent glass-forming oxide melts were illustrated and discussed from the point of view of the acid-base concept. Results on determination of thermodynamic functions in oxide systems were considered taking into account the main requirements for the confirmation of their reliability. The generalized lattice theory of associated solutions was used for the calculation of thermodynamic properties of the ternary silicate melts studied. Using this approach the different levels of deviations from the ideality in the melts under investigation were clarified. The relative numbers of bonds of various types formed in the melts considered were also calculated based on the generalized lattice theory of associated solutions.

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Section: Resultsmentioning

confidence: 60%

Vaporization and Thermodynamics of Glass-Forming Oxide Melts: Mass Spectrometric Study and Modeling

Stolyarova¹

2015

MSCE

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“…The angle dependences of the scattering intensity at angles 2θ from 4°-6° up to 60°-80° were obtained at LAXS studies of glass on a Rigaku X ray diffracto meter using the CuK α radiation. As in the studies of other systems containing 'heavy' elements [8][9][10], the correlation functions were not calculated, since it appeared impossible to obtain reliable angle depen dence in a sufficiently broad range of scattering vectors by using a conventional diffractometer. Nevertheless, some conclusions on the structure can be made based on the positions of the diffraction peaks on the LAXS curves.…”

Section: Studies Of Glass Structure In the Systemmentioning

confidence: 99%

“…To date, glass in a number of RO-B 2 O 3 -SiO 2 sys tems, where RO = SrO [8], BaO [9], PbO, and CdO [10], have been investigated using the LAXS method. The glass in these systems is characterized by the emergence of a maximum at scattering angles on LAXS curves for borate systems and by the absence of such a maximum for silicate systems.…”

Section: Studies Of Glass Structure In the Systemmentioning

confidence: 99%

Studies of glass structure in the system Bi2O3-B2O3-SiO2

2015

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The structure of single phase glass in the Bi 2 O 3 -B 2 O 3 -SiO 2 system has been investigated by the method of large angle X ray scattering (LAXS). The glass of two component systems Bi 2 O 3 ⎯B 2 O 3 and Bi 2 O 3 -SiO 2 and those of compositions in three sections with the Bi 2 O 3 content varying from 20 to 80 mol % at B 2 O 3 : SiO 2 ratios equal to 3, 1, and 1/3 have been studied. The LAXS data indicate the existence of the structural ordering beyond the first coordination spheres in glass of the Bi 2 O 3 -B 2 O 3 -SiO 2 system. Three clearly expressed diffraction maxima on LAXS angle dependences are caused by the presence of repeating interatom distances in the structure of the short and intermediate range order. This results from the forma tion of structural groups with the participation of modifier ions and, consequently, ordering in the boron sil ica surrounding of the bismuth ions. A partial crystallization is observed on the cooling of the melts containing 50% Bi 2 O 3 in the Bi 2 O 3 -SiO 2 system and 80% Bi 2 O 3 in the Bi 2 O 3 -B 2 O 3 system. The area of liquid phase separation is formed at the Bi 2 O 3 content of less than 30 %. The structure of the glass under study corresponds to the model of associated ideal solutions, which is a partial case of the generalized lattice theory of associated solutions.

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Investigation on PbO–B2O3–SiO2–RxOy Glasses Applied in Noncontact Silver Paste for Crystalline Silicon Solar Cells

Tong

Zhang

et al. 2020

Journal of Elec Materi

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On the structure of glass of the PbO-B2O3-SiO2 and CdO-SiO2-B2O3 systems

Cited by 7 publications

References 7 publications

Vaporization and Thermodynamics of Glass-Forming Oxide Melts: Mass Spectrometric Study and Modeling

Vaporization and Thermodynamics of Glass-Forming Oxide Melts: Mass Spectrometric Study and Modeling

Studies of glass structure in the system Bi2O3-B2O3-SiO2

Investigation on PbO–B2O3–SiO2–RxOy Glasses Applied in Noncontact Silver Paste for Crystalline Silicon Solar Cells

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