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Black Chromia Coatings on Metal Tubes for the Solar Collectors
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SYSNO ASEP 0467882 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Black Chromia Coatings on Metal Tubes for the Solar Collectors Author(s) Brožek, V. (CZ)
Mastný, L. (CZ)
Novák, M. (CZ)
Vilémová, Monika (UFP-V) RID, ORCID
Kubatík, Tomáš František (UFP-V)Source Title METAL 2016 – Conference proceedings: 25th Anniversary International Conference on Metallurgy and Materials. - Ostrava : TANGER Ltd., Ostrava, 2016 - ISBN 978-80-87294-67-3 Pages s. 1025-1030 Number of pages 6 s. Publication form Medium - C Action METAL 2016 - 25th Anniversary International Conference on Metallurgy and Materials/25./ Event date 25.05.2016 - 27.05.2016 VEvent location Brno Country CZ - Czech Republic Event type WRD Language eng - English Country CZ - Czech Republic Keywords Solar collector ; black chromia ; plasma spraying ; suspension spraying Subject RIV JK - Corrosion ; Surface Treatment of Materials Institutional support UFP-V - RVO:61389021 UT WOS 000391251200166 EID SCOPUS 85010767171 Annotation This paper describes the results of the first phase of the study preparation, structure and properties of coatings modification of black chromium oxide on copper, aluminium, iron and zirconium tubes for solar collectors. The coatings are prepared by plasma spraying of liquid chromate method which is known as liquid precursor plasma spraying. Coatings have the function of an energy trap for thermal radiation wavelengths of 1 μm – 3 μm i.e. in the IR region. At the same time, the coating increases the corrosion resistance of metal substrates. The nanometric structure and thickness of the coating depend of the feeding distance and the concentration of chromate precursors. For the deposition of nanometric splats of melt chromiumIII oxide, a new type of feeder that injects precursors into the water stabilized thermal plasma produced by the WSP® generator has been
developed.
Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2017
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