DOI 10.17586/0021-3454-2024-67-3-286-293
UDC 544.774
PERMEABILITY OF NANOPOROUS GLASSES
E. N. Zinichev St. Petersburg University of State Fire Service of EMERCOM of Russia, Department of Physical and Technical Fundamentals of Fire Safety; Associate professor
Y. P. Zarichnyak
ITMO University, Saint Petersburg, 197101, Russian Federation; Associate Professor
I. K. Meshkovsky
ITMO University, Saint Petersburg, 197101, Russian Federation; Professor, Director of the Research Institute of Light-Guided Photonics
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Reference for citation: Volkov D. P., Zarichnyak Yu. P., Meshkovsky I. K., Simonova M. A. Permeability of nanoporous glasses. Journal of Instrument Engineering. 2024. Vol. 67, N 3. P. 286—293 (in Russian). DOI: 10.17586/0021-3454-2024-67-3-286-293.
Abstract. The permeability of nanoporous glasses with the pore radius of 5–200 nm is studied. Such porous glasses are used as thin filters, optical materials with adjustable refractive index, solid adsorbents, selective membranes, and as the basis for composite materials in laser technology and optical instrument making. Models of the structure and methods for calculating the molecular permeability of such materials are proposed. Results of calculation using the proposed models are compared with experimental data.
Abstract. The permeability of nanoporous glasses with the pore radius of 5–200 nm is studied. Such porous glasses are used as thin filters, optical materials with adjustable refractive index, solid adsorbents, selective membranes, and as the basis for composite materials in laser technology and optical instrument making. Models of the structure and methods for calculating the molecular permeability of such materials are proposed. Results of calculation using the proposed models are compared with experimental data.
Keywords: porous glass, structure model, molecular permeability, parallel capillaries, interpenetrating components
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