Experimental investigations of asperity compliance of flexible magnetic medium

Author

Tan, Sanwu ; Talke, Frank E.

Author_Institution

Center for Magnetic Recording Res., California Univ., San Diego, La Jolla, CA, USA

Volume

35

Issue

2

fYear

1999

fDate

3/1/1999 12:00:00 AM

Firstpage

770

Lastpage

775

Abstract

Three-color interferometry was used to investigate the deformation of asperities on flexible medium surfaces. Elastic asperity compliance curves were obtained to evaluate changes in surface roughness due to burnishing, determine mechanical properties of flexible medium and analyze differences between single layer and dual layer metal particle tapes. Asperity compliance curves were obtained for metal particle tapes with different substrate properties and substrate thickness. A power function was used to fit the asperity compliance measurements and to calculate the contact pressure at the head/medium interface

Keywords

elastic deformation; light interferometry; magnetic tapes; surface topography; asperity compliance; burnishing; contact pressure; contact spacing; dual layer MP tape; elastic deformation; flexible medium; head/tape interface; magnetic tape recording; mechanical properties; metal particle tape; power function; single layer MP tape; substrate; surface roughness; three-color interferometry; Burnishing; Contacts; Ferrites; Interferometry; Magnetic heads; Magnetic recording; Magnetoelasticity; Mechanical factors; Rough surfaces; Surface roughness;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.750643

Filename

750643