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      An investigation on the optimization of electrochemically pigmented aluminum oxide collector coatings

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      Author(s)
      Kadirgan, F.
      Söhmen, M.
      Türe, I. E.
      Süzer, Ş.
      Wetherilt, J.
      Yazar, A.
      Date
      1997-03
      Source Title
      Renewable Energy
      Print ISSN
      0960-1481
      Publisher
      Elsevier
      Volume
      10
      Issue
      2/3
      Pages
      203 - 206
      Language
      English
      Type
      Article
      Item Usage Stats
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      Abstract
      In order to produce selective coatings on aluminium substrates to be used as absorber plates in high efficiency solar collectors, nickel pigmentation has been applied to anodically oxidized surfaces. Optical and structural properties of electrochemically formed aluminium oxide films as function of electrolysis conditions such as, applied current, pH, temperature and concentration of metal ions have been examined using electron spectroscopy and scanning electron microscopy. The optimisation of the absorptivity/emissivity ratio of the surfaces in terms of preparation conditions is described. Nickel pigmentation of porous aluminum surfaces was also investigated as a function of electrochemical pigmentation conditions. Mechanisms contributing to selectivity in anodically produced oxides and electrodeposits are discussed. Copyright © 1996 Published by Elsevier Science Ltd.
      Keywords
      Selective Surfaces
      Collectors
      Electrochemically pigmented aluminium
      Permalink
      http://hdl.handle.net/11693/11018
      Published Version (Please cite this version)
      http://dx.doi.org/10.1016/0960-1481(96)00064-X
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      • Department of Chemistry 640
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