Study of the formation of nanostructured composite powders in a plasma jet
- Authors: Drozdov V.O.1, Chesnokov A.E.1, Cherepanov A.N.1, Smirnov A.V.1
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Affiliations:
- Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
- Issue: Vol 26, No 5 (2019)
- Pages: 739-744
- Section: Article
- URL: https://journals.rcsi.science/1531-8699/article/view/218681
- DOI: https://doi.org/10.1134/S0869864319050111
- ID: 218681
Cite item
Abstract
The preparation of a titanium composite powder containing high-melting TiN nanoparticles using an electric-arc plasma torch is studied. Using an Evo MA15 electron microscope (Carl Zeiss) and a DRON-4.0 diffractometer, both the surface morphology and the internal structure of powder particles are investigated, an X-ray phase analysis of these particles is performed, and a distribution map of the elements both over the surface of the obtained composite particle and over its volume is constructed. It is shown that the nanoparticles are uniformly distributed over the entire volume of titanium particles and are completely clad with Ti. The nanostructured powders obtained in this way and used as nanomodifying additives increase the homogeneity of the distribution of the high-melting elements introduced into the melt, protect the nanoparticles from the direct interaction with ambient medium, increase their wettability, and prolong their shelf life. These factors improve the efficiency of metal and alloy nanomodification.
About the authors
V. O. Drozdov
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Email: ancher@itam.nsc.ru
Russian Federation, Novosibirsk
A. E. Chesnokov
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Email: ancher@itam.nsc.ru
Russian Federation, Novosibirsk
A. N. Cherepanov
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Author for correspondence.
Email: ancher@itam.nsc.ru
Russian Federation, Novosibirsk
A. V. Smirnov
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Email: ancher@itam.nsc.ru
Russian Federation, Novosibirsk