Oxidation and corrosion resistance of TbFeCoPt alloys films

Author

Hatwar, T.K. ; Majumdar, D.

Author_Institution

Eastman Kodak Co., Rochester, NY, USA

Volume

24

Issue

6

fYear

1988

fDate

11/1/1988 12:00:00 AM

Firstpage

2449

Lastpage

2451

Abstract

The effect of Pt addition on the oxidation and corrosion resistance of TbFeCo magnetooptic films prepared from alloy targets by DC magnetron sputtering has been studied. The addition of 5-10 at.% of Pt to TbFeCo increased its environmental stability, reduced pinhole formation, and increased corrosion potential without significantly affecting the magnetooptical properties. Auger depth profiles indicated that the oxide on TbFeCo films after accelerated aging was thicker than that on TbFeCoPt films. X-ray photoelectron spectroscopy was used to study in-situ oxidation of clean TbFeCoPt films under 5×10^-7 Torr of oxygen at room temperature. Results indicated that Pt remained in the metallic form, whereas Tb and Fe were oxidized at the surface. An oxygen-induced segregation of Tb to the surface was observed

Keywords

Auger effect; X-ray photoelectron spectra; cobalt alloys; corrosion; iron alloys; magnetic thin films; magneto-optical effects; magneto-optical recording; oxidation; platinum alloys; sputtered coatings; terbium alloys; Auger depth profiles; DC magnetron sputtering; TbFeCoPt alloys films; X-ray photoelectron spectroscopy; accelerated aging; corrosion resistance; environmental stability; in-situ oxidation; magnetooptical properties; oxidation resistance; pinhole formation; surface segregation; Accelerated aging; Corrosion; Magnetic properties; Magnetooptic effects; Oxidation; Platinum alloys; Spectroscopy; Sputtering; Stability; Surface cleaning;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.92137

Filename

92137