Tribological characteristics of lithium disilicate glass substrates media

Author

Lal, Brij B. ; Russak, Michael A.

Author_Institution

HMT Technol., Fremont, CA, USA

Volume

31

Issue

6

fYear

1995

fDate

11/1/1995 12:00:00 AM

Firstpage

2931

Lastpage

2933

Abstract

A new type of glass-ceramic disk substrate material: lithium disilicate glass:TS-10 with a built-in auto-texture induced by its intrinsic crystalline phase nature has been investigated. Sub 1-microinch glide height performance was evaluated by the glide avalanche method showed that the TS-10 thin-film disks are free of hits down to 0.7 microinch. In contact-start-stop (CSS) tests, the stiction forces did not show increase during 20 K CSS cycles and produced good CSS performance at 3 lube thicknesses. Corrosion testing of TS-10:CoNiCr disks was conducted under stressed environmental conditions. Missing-pulse errors measured before and after corrosion testing did not show significant increase and the optical microscopic inspection did not show corrosion spots. Also, the shock-resistance testing results demonstrated that the TS-10 thin-film disks can withstand high shock-loads up to 1000 g-level suitable for mobile drives without showing cracking or head-slap

Keywords

corrosion; glass; lithium compounds; magnetic disc storage; magnetic recording; shock wave effects; substrates; tribology; 0.7E-3 to 1E-3 inch; CoNiCr; Li₂Si₂O₅; TS-10 thin-film disks; auto-texture; contact-start-stop testing; corrosion testing; crystalline phase; glide avalanche; lithium disilicate glass-ceramic substrates; missing-pulse errors; mobile drives; optical microscopy; shock-resistance testing; stiction forces; tribological characteristics; Cascading style sheets; Corrosion; Crystalline materials; Crystallization; Glass; Lithium; Optical microscopy; Substrates; Testing; Transistors;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.490194

Filename

490194