The Morphology of the Alumina Films Formed tn The Anodization Process of Aluminium in the Orthophosphoric Acid Solution. The Co-Fe Alloys Electrodeposition Into Obtained Alumina Pores

• Autorzy: Gumowska W. , Dobosz I. , Wrzoszczyk B.

Identyfikatory

DOI

10.2478/amm-2014-0022

Warianty tytułu

PL

Morfologia warstewek tlenku glinu otrzymanych w procesie anodowego utleniania aluminium w roztworze kwasu ortofosforowego. Elektroosadzanie stopów CoFe w porach otrzymanego tlenku

• Języki publikacji: EN

Abstrakty

EN

The optimal parameters of the anodic oxidation of aluminium in orthophosphoric acid solution was determined. In the pores of the obtained Al2O3 membranes with the ordered nanometric structure Co-Fe alloys were electrodeposited. The Al2O3 membranes were obtained in the two-stage anodic oxidation of aluminium in the 0.17 M H3PO4 solution in the temperature 1°C and at the electrolysis voltage 180 V. The influence of the anodizing process parameters on the thickness of oxide films and the diameter of pores and the distance between them in the alumina membranes were determined. The electrodeposition of Co-Fe alloys was carried out from sulphate baths containing sulphates (VI) of copper (II) and cobalt (II) of different composition, in potentiostatic conditions. The optimal electrolysis conditions were determined, where the cathodic deposits of the best quality were obtained. The conditions are: the electrolyte composition: 0.3 M Fe; 0.5 M Co; pH = 3, the potential: -0.760 V (vs. SHE)).

PL

Określono optymalne parametry' anodowego utleniania aluminium w roztworze kwasu ortofosforowego W porach uzyska- nych membran AI2O3, o uporządkowanej strukturze nanometrycznej. osadzano elektrolitycznie stopy Co-Fe. Membrany AI2O3 otrzymywano w procesie dwuetapowego utleniania aluminium w roztworze 0.17 M H3PO4. w temperaturze 1°C, przy napięciu elektrolizy 180 V. Zbadano wpływ parametrów anodowania na grubość warstewek tlenkowych, średnicę porów i odległości między nimi w membranach tlenku glinu. Elektroosadzanie stopów Co-Fe prowadzono z roztworów siarczanowych (VI) zawierających jony miedzi (II) i kobaltu (U) o różnym składzie, w warunkach potencjostatycznych. Określono optymalne warunki elektrolizy, w których otrzymano osady katodowe najlepszej jakości. A mianowicie: skład elektrolitu : 0,3 M Fe: 0,5 M Co: pH = 3, potential: -0.760 V (wzgl. SEW).

Słowa kluczowe

EN

anodic oxidation of aluminium; nanowires; Co-Fe alloy

PL

anodowe utlenianie aluminium; nanodruty; stopy Co-Fe

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2014
• Tom: Vol. 59, iss. 1
• Strony: 137--143
• Opis fizyczny: Bibliogr. 33 poz., rys., tab.

Twórcy

autor

Gumowska W.

• AGH, Univesity ff Science and Technology, Faculty of Non – Ferrous Metals, 30 Ave Mickiewicza, 30-059 Krakow, Poland

autor

Dobosz I.

• AGH, Univesity ff Science and Technology, Faculty of Non – Ferrous Metals, 30 Ave Mickiewicza, 30-059 Krakow, Poland

autor

Wrzoszczyk B.

• AGH, Univesity ff Science and Technology, Faculty of Non – Ferrous Metals, 30 Ave Mickiewicza, 30-059 Krakow, Poland

Bibliografia

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Uwagi

This research work has been supported by the Polish Ministry of Science and Higher Education under project No. 10.10.180.307.