THE CORROSION TESTS OF AMORPHOUS-CARBON COATINGS DEPOSITED BY RF DENSE-PLASMA ONTO STEEL WITH DIFFERENT CHROMIUM CONTENTS

In the paper the results of experimental studies concerning characteri zation of amorphous carbon layers obtained by a new method of r.f. den se plasma CVD onto steel with different chromium contents are presente d. Thin, amorphous carbon layers, deposited onto these substrates, are the subject of structural and physical investigations. This refers al so to the system of carbon layer-steel substrate correlated with a mic rostructure of the layer, and to the determination of specifications r esulting from the model for optimization of the synthesis and applicab ility of a new system as medical implants. Amorphous carbon coatings p roduced by the dense r.f CH4 plasma method from steel AISI-316L used i n medicine were investigated to determine their suitability as biomate rials.