Debris growth and migration in the slider-disk interface

Author

Zhu, Li-Yan ; Fu, Yen

Author_Institution

Headway Technol. Inc., Milpitas, CA, USA

Volume

33

Issue

5

fYear

1997

fDate

9/1/1997 12:00:00 AM

Firstpage

3169

Lastpage

3171

Abstract

A debris causing serious wear and spacing deviation is often attached to, or slipping slowly on the slider. Its motion is dominated by contact forces, especially by the angle of the contact force with respect to the slider surface. The contact forces can be high if the debris is compressed as it slips. This occurs most often when the pitch (or wall-angle) is about 10°. The debris may be dislodged when the angles of contact forces change, especially due to skew. A simple model is developed to predict the tendency of debris motion, given the coefficient of friction, the skew, and the pitch angle. The model is programmed in Excel spreadsheet. The results are verified by experiments

Keywords

hard discs; magnetic recording; mechanical contact; modelling; sliding friction; wear; Excel spreadsheet; coefficient of friction; contact force angle; contact forces; debris growth; debris migration; model; pitch angle; skew; slider-disk interface; spacing deviation; wear; Drag; Friction; Glass; Gravity; Kinetic theory; Magnetic recording; Physics; Predictive models; Steady-state; Surface treatment;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.617880

Filename

617880