Title :
Study on the surface oxidation of Co-Cr films
Author :
Kitakami, O. ; Ogawa, Y. ; Yamagata, S. ; Daimon, H. ; Maro, T.
Author_Institution :
Hitachi Maxell Ltd., Ibaraki, Japan
fDate :
9/1/1990 12:00:00 AM
Abstract :
The tribological properties of a Co-Cr thin film were greatly improved by surface oxidation. According to surface analyses, a Cr-rich oxidized region in which Cr is oxidized to Cr2O3 was formed near the surface of the film. This region plays an important role in improving the mechanical durability of the film. However, when the oxidation is carried out for a long time, a thick Co-rich oxidized region grows on the Cr-rich oxidized one. As a result, the durability deteriorates
Keywords :
chromium alloys; cobalt alloys; ferromagnetic properties of substances; magnetic tapes; magnetic thin films; metallic thin films; oxidation; tribology; Co-Cr films; Cr2O3; durability; surface oxidation; tribological properties; Atmosphere; Chromium alloys; Cobalt alloys; Friction; Oxidation; Substrates; Temperature; Testing;
Journal_Title :
Magnetics, IEEE Transactions on
