ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

The Role of Coating in the Cellular Material Preparation

R. Oriňáková, M. Kupková, E. Dudrová, M. Kabátová, and M. Šupicová

Institute of Chemistry, P. J. Šafárik University, Faculty of Natural Sciences, SK-041 54 Košice e-mail: orinako@kosice.upjs.sk

E-mail: orinako@kosice.upjs.sk

Received: 18 February 2003

Abstract: The hollow metal spheres represent the interesting substance, suitable for the cellular material production by the powder metallurgical method. Thick-walled and thus stronger hollow particles are of interest for less extremely light-weight but mechanically stronger components. The basic material properties improving by metal coating deposition is described. The electrolytical and electroless coating of iron hollow spheres with Cu and Ni, in fluidized bed arrangement, is demonstrated here. The influence of the deposition method and the coating conditions on the mechanical properties, surface morphology, and coating composition of the covered spheres were investigated. The effect of current intensity on current efficiency was also studied there.
It was found that the cell structure, surface morphology, composition, and mechanical properties of prepared samples are strongly affected by the coating method.

Full paper in Portable Document Format: 584a236.pdf

Chemical Papers 58 (4) 236–241 (2004)