Codeposition of SiC particles with cobalt matrix

• Autorzy: Rudnik E. , Burzyńska L. , Jakubowska W.
• Języki publikacji: EN

Abstrakty

EN

in the bath on the kinetics of the cathodic reaction as well as composition, morphology, microhardness and corrosion resistance of Co/SiC composite coatings. Design/methodology/approach: Co/SiC composite coatings were deposited from a chloride-sulfate bath at two current densities (0.5 and 1 A/dm2) and various SiC powder concentrations (10-50 g/dm3). SiC content in the composites was determined by an image analysis. The microstructure was studied using optical and atomic force microscopes. Microhardness and corrosion resistance (in H2SO4) of the deposits were determined as a dependence on the SiC content in the coatings. Findings: SiC incorporation increased (15-36 vol%) under powder addition to the bath, but increase in the current density enhanced cobalt matrix deposition. The last one resulted in lower particles contents in the coatings accompanied by an increase in the current efficiencies. Microscopic observations of the coatings revealed uniform distribution of the particles within matrix. Microhardness of the composites was 200-280 HV. Corrosion resistance of the coatings was improved a little at higher SiC content in the composites. Practical implications: The paper describes the possibilities of codeposition of SiC particles with cobalt matrix. Originality/value: The results of studies and conclusions presented in the paper are consecutive data complementing knowledge on codeposition of ceramic particles with cobalt.

Słowa kluczowe

EN

composite; silicon carbide; cobalt; electrodeposision

PL

osadzanie elektryczne; kompozyt; węglik krzemu; kobalt

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2010
• Tom: Vol. 41, nr 1-2
• Strony: 195--199
• Opis fizyczny: Bibliogr. 20 poz., rys., tabl.

Twórcy

autor

Rudnik E.

autor

Burzyńska L.

autor

Jakubowska W.

• Laboratory of Physical Chemistry and Electrochemistry, Department of Physical Chemistry and Metallurgy of Non-Ferrous Metals, Faculty of Non-Ferrous Metals, AGH University of Science and Technology, Al. Mickiewicza 30; 30-059 Kraków, Poland,

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