Cobalt chromium perpendicular magnetic recording media: a corrosion study

Author

McIntire, Gregory L. ; Brucker, Charles F.

Author_Institution

Eastman Pharm., Great Valley, PA, USA

Volume

24

Issue

5

fYear

1988

fDate

9/1/1988 12:00:00 AM

Firstpage

2221

Lastpage

2225

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;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.3431

Filename

3431