Simulation of production of hollow silica particles in a plasma flow. Part 2. Hollow particle production dynamics
V.A. Arkhipov1, V.D. Goldin1, V.V. Shekhovtsov2, O.G. Volokitin2, A.S. Anshakov3, V.I. Kuzmin4
1Tomsk State University, Tomsk, Russia
2Tomsk State University of Architecture and Construction, Tomsk, Russia
3Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
4Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia
Keywords: low-temperature plasma, silica, precursor porous particles, particle heating and melting, hollow microspheres, Laplace pressure, morphology of microspheres
Abstract
The paper presents results of numerical simulation for the process of production of hollow microspheres during heating and melting of porous particles of silica (the precursor) by a flow of low-temperature plasma. This model takes into account the partial capturing of gas in the particle and offers the laws of evolution for the hollow microsphere diameter and the wall thickness for different precursors with the size D 0 = (50-150) microns and porosity P p = (0.2-0.6).
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