Self-organization of TiO2 microparticles on the surface of a thin liquid layer due to local heating and the formation of convective cells

Self-organization of TiO2 microparticles on the surface of a thin liquid layer due to local heating and the formation of convective cells

Bibliographic Details
Parent link:Journal of Molecular Liquids
Vol. 324.— 2021.— [114685, 10 p.]
Corporate Authors: Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов, Национальный исследовательский Томский политехнический университет Инженерная школа энергетики Научно-образовательный центр И. Н. Бутакова (НОЦ И. Н. Бутакова)
Other Authors: Egorov R. I. Roman Igorevich, Misyura S. Ya. Sergey Yakovlevich, Morozov V. S. Vladimir Sergeevich, Zaitsev A. S. Aleksandr Sergeevich
Summary:Title screen
The aggregation of TiO2 microparticles followed by self-organization of a cluster of agglomerates at convective cells formation in a thin layer of water is studied experimentally. Complex behavior of the cluster is considered at a strong system deviation from equilibrium as a result of local heating. A periodic character of the behavior of a cluster of particles has been detected. Particle sizes and the number of cells change cyclically over time. Hexagonal convective cells have a very small size of about 50–100 µm (5–10 times less than the layer height). Data on the cluster occurrence and dissociation over time is provided. It is shown that when the particle diameter and the diameter of coagulated particles reach the maximum (the maximum diameter of the cluster corresponds to 100–130 µm, and the maximum diameter of the aggregate is 20–30 µm), the convective cells lose stability and the cluster partially disintegrates. Self-organization control using local heating can be effectively applied to create new materials, as well as in biology and medicine.
Режим доступа: по договору с организацией-держателем ресурса
Language:English
Published: 2021
Subjects:
электронный ресурс
труды учёных ТПУ
Benard-Marangoni convection
self-assembly
microparticles
liquid interface
laser heating
Online Access:https://doi.org/10.1016/j.molliq.2020.114685
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663585

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