Characterization of change of carbon bonding due to sliding wear damage by scanning Auger microscopy

Author

Yeh, Tse-An ; Lin, Chien-Li ; Sivertsen, John M. ; Judy, Jack H. ; Chen, Ga-Lane

Author_Institution

Minnesota Univ., Minneapolis, MN, USA

Volume

29

Issue

6

fYear

1993

fDate

11/1/1993 12:00:00 AM

Firstpage

3939

Lastpage

3941

Abstract

The alteration of carbon bonding resulting from the continuous frictional heating between a magnetic head slider and a rotating thin film rigid disk has been investigated. This change of carbon bonding from diamondlike amorphous carbon phase to graphite phase was inspected by scanning Auger microscopy (SAM). As near and direct contact recording are being considered for future high density disk drives, this phase transformation of the protective carbon overcoating could result in failure of the head-disk interface

Keywords

hard discs; magnetic heads; protective coatings; scanning electron microscopy; wear testing; carbon bonding; continuous frictional heating; diamondlike amorphous carbon phase; direct contact recording; graphite phase; head-disk interface; high density disk drives; magnetic head slider; near contact recording; phase transformation; rotating thin film rigid disk; scanning Auger microscopy; sliding wear damage; Amorphous materials; Bonding; Diamond-like carbon; Disk drives; Disk recording; Heating; Magnetic films; Magnetic heads; Magnetic recording; Microscopy;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.281349

Filename

281349