Nickel electrolytic colouring of anodic alumina for selective solar absorbing films

M. Zemanová, M. Chovancová, Z. Gáliková and P. Krivošík

Renewable Energy, 2008, vol. 33, issue 10, 2303-2310

Abstract: The influence both of the waveform of the pigmentation current and of the type of electrolyte on the quality of nickel-pigmented aluminium solar-absorbing coatings was investigated. Alternating current (AC) and rectified AC current with half-wave and full-wave rectification, respectively, were applied. As a pigmentation agent, Watts and citrate electrolytes on the nickel (Ni2+) basis were used. Thickness, weight, colour shade of the deposited coatings were recorded before and composition and microstructure ones after stripping procedure. The stripping procedure of anodic alumina was carried out in the chrome/phosphoric acid mixture. It was confirmed that the negative half wave of anodising current is responsible for nickel deposition. Morphology study revealed that the positive half wave causes softening/dissolution of the structure deposit. Complexing agent of the nickel-based electrolyte for pigmentation of anodic alumina causes high-degree arrangement of the nickel deposit at presented conditions.

Keywords: Aluminium anodisation; Nickel pigmentation; Stripping; Selective solar absorbing surface (search for similar items in EconPapers)
Date: 2008
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148108000025
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:33:y:2008:i:10:p:2303-2310

DOI: 10.1016/j.renene.2008.01.005

Access Statistics for this article

Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides

More articles in Renewable Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().