Heat Transfer on Micro and Nanostructured Rough Surfaces Synthesized by Plasma

The review summarizes recent experimental results of studying heat transfer on rough surfaces synthesized by plasma. The plasma-surface interaction leads to the stochastic clustering of the surface roughness with a high specific area breaking the symmetry of the virgin surface of the initial crystal...

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Bibliographic Details
Published in:Symmetry (Basel) 2022-11, Vol.14 (11), p.2346
Main Authors: Dedov, Alexey Victorovich, Budaev, Viacheslav Petrovich
Format: Article
Language:English
Subjects:
Biomedical materials
Charged particles
Clustering
Electric fields
Fractals
Heat exchange
Heat transfer
High temperature plasmas
Hydrogen production
Molecular beam epitaxy
Nanofibers
Nanostructure
nanostructures
Nuclear reactors
Phase transitions
Plasma
Plasma processing
plasma treatment
Refractory metals
rough surface
Surface roughness
Symmetry
Synthesis
Topography
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Summary:The review summarizes recent experimental results of studying heat transfer on rough surfaces synthesized by plasma. The plasma-surface interaction leads to the stochastic clustering of the surface roughness with a high specific area breaking the symmetry of the virgin surface of the initial crystalline materials. Such a surface is qualitatively different from the ordinary Brownian surface. The micro- and nanostructured surface consist of pores, craters, and nanofibers of size from tens of nanometers to tens of microns, which can provide new heat transfer properties related to a violation of the symmetry of the initial materials. In recent years, new results have been obtained in the study of heat transfer during phase change on plasma-modified surfaces in relation to energy, chemical, and cryogenic technologies. The objective of the review is to describe the specific structure of refractory metals after high-temperature plasma irradiation and the potential application of plasma processing of materials in order to create heat exchange surfaces that provide a significant intensification of two-phase heat transfer. Refractory metals with such a highly porous rough surface can be used as plasma-facing components for operation under extreme heat and plasma loads in thermonuclear and nuclear reactors, as catalysts for hydrogen production, as well as in biotechnology and biomedical applications.
ISSN:2073-8994
2073-8994
DOI:10.3390/sym14112346