COMPOSITE COATINGS CONTAINING NANOMETRIC CONSTITUENTS PREPARED BY PLASMA SPRAYING WITH LIQUID FEEDSTOCKS

1 MUSALEK Radek
Co-authors:
1 TESAR Tomas 1 MEDRICKY Jan 1 CIZEK Jan 1 LUKAC Frantisek
Institution:
1 Institute of Plasma Physics of the Czech Academy of Sciences, Prague, Czech Republic, EU, musalek@ipp.cas.cz
Conference:
13th International Conference on Nanomaterials - Research & Application, Orea Congress Hotel Brno, Czech Republic, EU, October 20 - 22, 2021
Proceedings:
Proceedings 13th International Conference on Nanomaterials - Research & Application
Pages:
86-91
ISBN:
978-80-88365-00-6
ISSN:
2694-930X
Published:
22nd November 2021
Proceedings of the conference have already been published in Scopus and we are waiting for evaluation and potential indexing in Web of Science.
Metrics:
166 views / 73 downloads
Abstract

Plasma spraying of liquid feedstocks allows deposition of materials with novel microstructures. Due to the combination of a liquid carrier and ultrafine powders (in case of suspensions) or in-situ formation of the final material in the plasma jet (in case of solutions), preparation of ultrafine composites is possible, typically in a form of coatings on the substrates. Moreover, both suspension and solution spraying routes can be easily combined, either together or even with conventional plasma spraying of coarse dry powders, thus merging benefits of “nanometric” and “micrometric” constituents in the final composite microstructure. As a consequence, liquid feedstock plasma spraying represents an industrially-relevant deposition process with wide variability, providing coatings with properties tailored for various applications ranging from compact wear-resistant layers, porous thermal barrier coatings, bio-compatible medical coatings, catalyst carriers, fuel-cells, etc. The paper introduces several examples of such ultrafine coatings recently deposited at IPP CAS using hybrid water-stabilized plasma torch.

Keywords: Plasma spraying, liquid feedstock, coatings, functionally graded materials (FGMs)

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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