| NUKLEONIKA 2000, 45(3):199-202
SURFACE MODIFICATION OF PLASMA-SPRAYED ALUMINA DEPOSITS
BY HIGH-ENERGY ION BEAMS
Marek Sadowski1, Jerzy Langner1, Jacek Stanislawski1, Jiri Matejíček2,
Blahoslaw Kolman2, Pavel Chráska2
1 The Andrzej Soltan Institute for Nuclear Studies (IPJ), 05-400 Otwock-Swierk, Poland
2 Institute of Plasma Physics (IPP), AS CR, Za Slovankou 3, 18221 Praha, Czech Republic
This paper reports on characteristics of alumina-type coatings deposited on steel substrates and treated with pulsed plasma streams containing high-energy ion beams (N, Ar, and Ti+N). Originally matted surfaces of the ceramic layers, which were created by plasma spraying of gray alumina, were changed into shiny ones, and splat boundaries disappeared due to the melting of a thin surface layer. The thickness of this modified layer did not exceed 1 mm. A higher content of Ti was found on the surfaces of the Ti- and N-treated samples only.
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