Abstract
The paper presents the 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 D0 = (50–150) microns and porosity Pp = (0.2–0.6).
Similar content being viewed by others
References
I.P. Gulyaev and O.P. Solonenko, Modelling of the behavior of hollow ZrO2 particles in plasma jet with regard to their thermal expansion, Thermophysics and Aeromechanics, 2013, Vol. 20, No. 6, P. 769–782.
E.V. Shinkareva and A.M. Safonova, Conductive paints made from nickel-plated glass microspheres, Glass and Ceramics, 2007, Vol. 64, No. 9, P. 316–317.
V. Semenov, T. Rozovskaya, and D. Oreshkin, Properties of the dry masonry mixtures with hollow ceramics microspheres, Advanced Materials Research, 2014, Vol. 860, P. 1244–1247.
Q. Wang, D. Wang, and H. Chen, The role of fly ash microsphere in the microstructure and macroscopic properties of high-strength concrete, Cement and Concrete Composites, 2017, Vol. 83, P. 125–137.
V.S. Levitskii, A.I. Maksimov, V.A. Moshnikov, and E.I. Terukov. Investigation of the structure and composition of film sol-gel-derived CoOx-SiO2, Physics of the Solid State, 2014, Vol. 56, No. 2, C. 270–275.
M. Kawashita, N. Matsui, Z. Li, and T. Miyaza, Preparation of porous yttrium oxide microparticles by gelation of ammonium alginate in aqueous solution containing yttrium ions, J. Materials Sci.: Materials in Medicine, 2010, Vol. 21, No. 6, P. 1837–1843.
A.S. Zhukov, V.A. Arkhipov, S.S. Bondarchuk and V.D. Goldin, Evaluation of the morphology of particles produced by plasma-chemical synthesis of ceramic powders, Russian J. Chem. Phys. B, 2013, Vol. 7, P. 777–782.
V.A. Arkhipov, E.A. Kozlov, I.K. Zharova, S.S. Titov, and A.S. Usanina, Evolution of a liquid-drop aerosol cloud in the atmosphere, Arabian J. Geosciences, 2016, Vol. 9, No. 2, P. 114–1–114–10.
O.P. Solonenko, I.P. Gulyaev, and A.V. Smirnov, Thermal plasma processes for production of hollow spherical powders: theory and experiment, J. Thermal Sci. and Technology, 2011, Vol. 6, No. 2, P. 219–234.
V.A. Arkhipov, S.S. Bondarchuk, V.V. Shekhovtsov, O.G. Volokitin, A.S. Anshakov, and V.I. Kuzmin, Simulation of production of hollow silica particles in a plasma flow. Part 1. Dynamics of motion and heating of porous particles, Thermophysics and Aeromechanics, 2019, Vol. 26, No. 1, P. 139–152.
O.P. Solonenko, Criterion conditions for the formation of hollow microspheres from plasma-treated agglomerated particles, Thermophysics and Aeromechanics, 2014, Vol. 21, No. 6, P. 735–746.
A.V. Lykov, Thermal Conductivity Theory, Vysshaya Shkola, Moscow, 1967.
L.E. Sternin and A.A. Shraiber, Gas-and-Particle Multiphase Flows, Mashinostroeniye, Moscow, 1994.
G.F. Muchnik and I.B. Rubashov. Methods of Heat Transfer Theory. Part 1. Thermal Conductivity, Vysshaya Shkola, Moscow, 1970.
J.H. Conway and N.J.A. Sloane, Sphere Packings, Lattices, and Groups, Springer-Verlag, 1985.
Author information
Authors and Affiliations
Corresponding authors
Additional information
Research was supported by the grant from the Russian Science Foundation, Project No. 20-79-10102 (regarding the problem statement and results analysis) and due to scientific Project No. 8.2.06.2018 L, supported by a Program “Science Foundation of Tomsk State University named after D.I. Mendeleev”.
Rights and permissions
About this article
Cite this article
Arkhipov, V.A., Goldin, V.D., Shekhovtsov, V.V. et al. Simulation of production of hollow silica particles in a plasma flow. Part 2. Hollow particle production dynamics. Thermophys. Aeromech. 27, 595–605 (2020). https://doi.org/10.1134/S0869864320040125
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0869864320040125