Title :
Cobalt chromium perpendicular magnetic recording media: a corrosion study
Author :
McIntire, Gregory L. ; Brucker, Charles F.
Author_Institution :
Eastman Pharm., Great Valley, PA, USA
fDate :
9/1/1988 12:00:00 AM
Abstract :
An electrochemical and environmental chamber study of the effects of corrosion on the magnetic properties of various cobalt chromium thin-film compositions is reported. The propensity of these various materials towards corrosion is delineated, with suggestions for an optimum composition with respect to corrosion resistance. The effects of the presence of a titanium seed layer and those of a soft nickel/iron keeper layer on the corrosion resistance of the recording medium are studied
Keywords :
chromium alloys; cobalt alloys; corrosion; ferromagnetic properties of substances; magnetic hysteresis; magnetic recording; magnetic thin films; Co-Cr thin films; CoCr-NiFe; CoCr-Ti; corrosion; corrosion resistance; electrochemical testing; environmental chamber; hysteresis loops; keeper layer; magnetic properties; optimum composition; perpendicular magnetic recording media; seed layer; Chromium; Cobalt; Composite materials; Corrosion; Magnetic films; Magnetic materials; Magnetic properties; Perpendicular magnetic recording; Soft magnetic materials; Titanium;
Journal_Title :
Magnetics, IEEE Transactions on
