1. bookVolume 12 (2019): Issue 1 (April 2019)
Journal Details
License
Format
Journal
eISSN
1339-3065
First Published
10 Dec 2012
Publication timeframe
2 times per year
Languages
English
access type Open Access

Electrolytic colouring of anodized aluminium on tin basis

Published Online: 09 Jul 2019
Volume & Issue: Volume 12 (2019) - Issue 1 (April 2019)
Page range: 8 - 13
Journal Details
License
Format
Journal
eISSN
1339-3065
First Published
10 Dec 2012
Publication timeframe
2 times per year
Languages
English
Abstract

The aim of the study was to find parameters of electrolytic colouring on tin basis to form uniform black coatings on anodized aluminium. A two steps electrolytic process consisting of aluminium anodization in a sulphuric acid electrolyte and colouring in tin acidic electrolyte was used. Among parameters influencing the colouring process, AC colouring voltage, composition of the counter electrode and agitation of the colouring electrolyte were studied. Spectrocolorimetry was applied to analyse the quality of the colouring. Thickness of the coloured and sealed anodized specimens was also evaluated. Optimal parameters for uniform colouring of anodized specimens were found. Unfortunately, colouring electrolyte on tin basis is susceptible to oxidation which negatively influences the colouring.

Keywords

Brace AW, Sheasby PG (1979) The Technology of Anodizing Aluminium. Technicopy Ltd, England.Search in Google Scholar

Fairchild MD (2005) Color and Image Appearance Models, Chichester UK, John Wiley and Sons.Search in Google Scholar

Cheng CH (2015) Electro- Chemo- Mechanics of Anodic Porous Alumina Nano-Honeycombs: Self-ordered Growth and Actuation. The University of Hong Kong, Hong Kong.10.1007/978-3-662-47268-2Search in Google Scholar

Michna Š, Lukáč I et al. (2005) Encyclopedia of Aluminium. Adin, s.r.o, Prešov.Search in Google Scholar

Paunovic M, Schlesinger M (2006) Fundamentals of Electrochemical Deposition. John Wiley & Sons, Inc. (USA) Hoboken, New Jersey.10.1002/0470009403Search in Google Scholar

Srinivasan B (2005) Troubleshooting of Electrolytic Color Anodizing of Aluminium. USA.Search in Google Scholar

Švorc J (2016) Sealing of Anodized Aluminium and its Alloys. České vysoké učení technické v Praze, Prague.Search in Google Scholar

Tsangaraki-Kaplanoglou I. et al. (2006) An Investigation of Electrolytic Coloring Process of Anodized Aluminium Coatings. Surface & Coatings Technology: 2749—2759.10.1016/j.surfcoat.2006.05.027Search in Google Scholar

Wernick S, Pinner R, Sheasby PG (1987) The Surface treatment and Finishing Aluminium and its Alloys. Vol. 1 and 2. ASM International Finishing Publications Ltd, England.Search in Google Scholar

Recommended articles from Trend MD

Plan your remote conference with Sciendo