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Surface modification of plasma-sprayed alumina deposits by high-energy ion beams

Sadowski M., Langner J., Stanisławski J., Matejícek J., Kolman B., Chráska P.

Nukleonika

2000

Vol. 45, nr 3

199-202

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 žm. A higher content of Ti was found on the surfaces of the Ti- and N-treated samples only.