Low Cost Solar Selective Chromate Conversion Coatings Applied to Stainless Steel Substrates

[+] Author and Article Information
J. R. Culham, P. Niessen

Department of Mechanical Engineering, University of Waterloo, Ontario, Canada N2L 3G1

J. Sol. Energy Eng 102(3), 188-191 (Aug 01, 1980) (4 pages) doi:10.1115/1.3266152 History: Received June 13, 1980; Online November 11, 2009


Solar selective surfaces have been produced on austenitic and ferritic stainless steels using an acidic chromate bath at 75°C. These surfaces have been shown to have high humidity resistance and good thermal stability. The conversion coatings can be applied uniformly over large surfaces, even surfaces of nonplanar topography. Complete sets of plating parameters for different grades of stainless steels are presented which may be used for the implementation of this process for the production of low grade heat collecting systems.

Copyright © 1980 by ASME
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