Microwave Heating of Metal Power Clusters
- Authors: Rybakov K.I.1,2, Semenov V.E.1, Volkovskaya I.I.1,2
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Affiliations:
- Institute of Applied Physics
- Lobachevsky State University of Nizhny Novgorod
- Issue: Vol 63, No 1 (2018)
- Pages: 45-50
- Section: Physical Science of Materials
- URL: https://journals.rcsi.science/1063-7842/article/view/200495
- DOI: https://doi.org/10.1134/S1063784218010206
- ID: 200495
Cite item
Abstract
The results of simulating the rapid microwave heating of spherical clusters of metal particles to the melting point are reported. In the simulation, the cluster is subjected to a plane electromagnetic wave. The cluster size is comparable to the wavelength; the perturbations of the field inside the cluster are accounted for within an effective medium approximation. It is shown that the time of heating in vacuum to the melting point does not exceed 1 s when the electric field strength in the incident wave is about 2 kV/cm at a frequency of 24 GHz or 5 kV/cm at a frequency of 2.45 GHz. The obtained results demonstrate feasibility of using rapid microwave heating for the spheroidization of metal particles with an objective to produce high-quality powders for additive manufacturing technologies.
About the authors
K. I. Rybakov
Institute of Applied Physics; Lobachevsky State University of Nizhny Novgorod
Author for correspondence.
Email: rybakov@appl.sci-nnov.ru
Russian Federation, Nizhny Novgorod, 603950; Nizhny Novgorod, 603950
V. E. Semenov
Institute of Applied Physics
Email: rybakov@appl.sci-nnov.ru
Russian Federation, Nizhny Novgorod, 603950
I. I. Volkovskaya
Institute of Applied Physics; Lobachevsky State University of Nizhny Novgorod
Email: rybakov@appl.sci-nnov.ru
Russian Federation, Nizhny Novgorod, 603950; Nizhny Novgorod, 603950