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Black Chromia Coatings on Metal Tubes for the Solar Collectors

  1. 1.
    0467882 - ÚFP 2017 RIV CZ eng C - Conference Paper (international conference)
    Brožek, V. - Mastný, L. - Novák, M. - Vilémová, Monika - Kubatík, Tomáš František
    Black Chromia Coatings on Metal Tubes for the Solar Collectors.
    METAL 2016 – Conference proceedings: 25th Anniversary International Conference on Metallurgy and Materials. Ostrava: TANGER Ltd., Ostrava, 2016, s. 1025-1030. METAL. ISBN 978-80-87294-67-3.
    [METAL 2016 - 25th Anniversary International Conference on Metallurgy and Materials/25./. Brno (CZ), 25.05.2016-27.05.2016]
    Institutional support: RVO:61389021
    Keywords : Solar collector * black chromia * plasma spraying * suspension spraying
    Subject RIV: JK - Corrosion ; Surface Treatment of Materials
    http://www.metal2017.com/cz/sbornik-metal-2016/

    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.

    Permanent Link: http://hdl.handle.net/11104/0265872

     
     
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