The Use of Fluoborate Immersion Solution in Preparation of Anodised Aluminium for Metal Deposition in the Oxide Pores

• Published in: Transactions of the Institute of Metal Finishing Vol. 80; no. 5; pp. 150 - 153
• Main Authors: Skominas, V., Timinskas, A., Jagminas, A., Češūnienė, A., Kurtinaitienė, M., Matulionis, E.
• Format: Journal Article
• Language: English
• Published: Birmingham Taylor & Francis 2002; Institute of Metal Finishing
• Subjects: anodised Al; Applied sciences; barrier layer perforation; Exact sciences and technology; fluoborate immersion solution; metal deposition; Metallic coatings; Metals. Metallurgy; Production techniques; Surface treatment; Metal deposition; Barrier layer; Anodizing; Fluoborates; Electrodeposition; Aluminium; Immersion; Experimental study; Surface treatment
• ISSN: 0020-2967; 1745-9192
• DOI: 10.1080/00202967.2002.11871456

The fluoborate immersion solution developed for treatment of Al prior to electroplating dissolves the barrier layer in the pores of alumina obtained by Al anodising in the oxalic and phosphoric acid solutions. The process of the barrier layer perforation may be followed by the potential change of anodized Al in the immersion solution. Pore widening in the weak phosphoric acid solution prior to treatment in the fluoborate immersion solution leads to an effective perforation of the barrier layer and, as a result, to the possibility of metal deposition into the pores at the potential commonly used for metal deposition at metal electrodes. This extends essentially the possibilities of deposition of various metal functional systems on the anodised Al.