Effect of disk cross hatch texture on tribological performance

Author

Lee, J.K. ; Chao, A. ; Enguero, J. ; Smallen, M. ; Lee, H.J. ; Dion, P.

Author_Institution

Conner Peripherals, San Jose, CA, USA

Volume

28

Issue

5

fYear

1992

fDate

9/1/1992 12:00:00 AM

Firstpage

2880

Lastpage

2882

Abstract

Wear at the head-disk interface of magnetic recording devices depends on the take-off velocity (TOV). At a lower TOV, the sliding distance between the head and disk prior to take-off is shorter, and the tribological performance is improved. Disks prepared with a cross hatch texture can produce a low ratio of center line to peak/peak to valley ( R_p/R_t) and a low bearing ratio ( t_p). This type of texture leads to a low TOV. However, some cross hatch textured disks and most circumferential textured disks have a high R_p/R_t and t_p, leading to a higher TOV and poorer tribological performance. Heads with negative crowns and negative skew angles also lead to a higher TOV and poorer performance between the head and disk

Keywords

magnetic disc storage; magnetic heads; surface texture; wear; circumferential textured disks; disk cross hatch texture; head-disk interface; magnetic recording devices; take-off velocity; tribological performance; wear; Cascading style sheets; Cobalt alloys; Drives; Force measurement; Friction; Magnetic heads; Magnetic recording; Optical films; Performance evaluation; Testing;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.179660

Filename

179660