Electrochemical corrosion study of high moment thin film head materials

Author

Gangopadhyay, S. ; Inturi, V.R. ; Barnard, J.A. ; Parker, M.R. ; Saffarian, H.M. ; Warren, G.W.

Author_Institution

Center for Mater. for Inf. Technol., Alabama Univ., Tuscaloosa, AL, USA

Volume

30

Issue

6

fYear

1994

fDate

11/1/1994 12:00:00 AM

Firstpage

3918

Lastpage

3920

Abstract

An electrochemical corrosion study of high moment, magnetically soft FeXN (X=metal) thin film head materials is presented. Potentiodynamic anodic polarization in aqueous 0.5M NaCl and 0.25M Na ₂SO₄ solutions is studied for qualitative and quantitative measures of corrosion characteristics. The effect of annealing, composition, and a comparison with Permalloy and Fe thin films are also presented. A drastic improvement in corrosion characteristics result in the samples made with N₂ flow rate >10 sccm

Keywords

annealing; corrosion testing; ferromagnetic materials; iron alloys; magnetic heads; magnetic moments; magnetic thin film devices; soft magnetic materials; Na₂SO₄; NaCl; annealing; corrosion characteristics; electrochemical corrosion study; high magnetic moment; potentiodynamic anodic polarization; soft thin film head materials; Annealing; Corrosion; Iron; Magnetic films; Magnetic heads; Magnetic materials; Magnetic moments; Polarization; Soft magnetic materials; Transistors;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.333943

Filename

333943