Investigation of the modified chemical vapor deposition in preparation of glasses in the SiO2-GeO2-F system

Andreev, A. G.; Ermakov, V. S.; Kryukov, I. I.; Tsibinogina, M. K.; Shein, A. B.; Zlobin, P. A.; Колобкова, Е. В.; Eron’yan, M. A.

doi:10.1134/s1087659606050051

Cited by 3 publications

(2 citation statements)

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“…Information on the vaporization processes and thermodynamic properties of glasses and melts in the GeO 2 -SiO 2 system obtained by high temperature mass spectrometric method [53] was used for the calculation of the sample compositions of fluorine-germanosilicate glasses that were prepared by modified CVD process [84]. These results were patented [85,86].…”

Section: Application Of the Approaches Discussed For The Development mentioning

confidence: 99%

High Temperature Mass Spectrometric Study of Thermodynamic Properties and Vaporization Processes of Oxide Systems: Experiment and Modeling

Stolyarova¹

2013

TOTHERJ

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Abstract:The unique opportunities and features of high temperature mass spectrometric method for study vaporization processes and thermodynamic properties of oxide systems and materials (glasses, ceramics and coatings) were considered. Various types of vapour 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 oxide systems according to the position of oxide modifier in the Periodic table of atoms 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. Thermodynamic functions of oxide systems studied showed various signs of the deviations from the ideality. The general lattice theory of associated solutions was used for the calculation of thermodynamic properties of the ternary silicate melts studied. Based on this theory the correlation between thermodynamic functions obtained in the systems under consideration and the number of various types of bonds formed in these melts was illustrated. Using this approach the different levels of deviations from the ideality in the melts studied were clarified. Examples of the practical applications of high temperature mass spectrometry for developing advanced materials were shown.

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Section: Application Of the Approaches Discussed For The Development mentioning

confidence: 99%

High Temperature Mass Spectrometric Study of Thermodynamic Properties and Vaporization Processes of Oxide Systems: Experiment and Modeling

Stolyarova¹

2013

TOTHERJ

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“…Other important equilibria are associated with Cl 2 dissociation/recombination and GeO 2 decomposition to GeO [4][5][6]. These equilibria, shown in Eqs.…”

Section: Introductionmentioning

confidence: 99%

A computational fluid dynamics model for co-deposition of silica and germania in the MCVD process

Cheung

Fletcher

Barton

2010

Journal of Non-Crystalline Solids

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Chemistry of titanium incorporation in silica glass of optical preform for making of Ti doped optical fibre by the MCVD process

Paul¹,

Sen²,

Bhadra³

et al. 2008

Optical Materials

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Investigation of the modified chemical vapor deposition in preparation of glasses in the SiO2-GeO2-F system

Cited by 3 publications

References 10 publications

High Temperature Mass Spectrometric Study of Thermodynamic Properties and Vaporization Processes of Oxide Systems: Experiment and Modeling

High Temperature Mass Spectrometric Study of Thermodynamic Properties and Vaporization Processes of Oxide Systems: Experiment and Modeling

A computational fluid dynamics model for co-deposition of silica and germania in the MCVD process

Chemistry of titanium incorporation in silica glass of optical preform for making of Ti doped optical fibre by the MCVD process

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