NDLI: Influence of surface texture of a thin-film rigid disk on frictional properties at the head-disk interface

Content Provider	IEEE Xplore Digital Library
Author	Ito, M. Shinohara, T. Yanagi, K. Tanaka, K.
Copyright Year	1965
Abstract	Contact start/stop tests (CSS) on thin-film rigid disks were carried out with reference to the surface texturization. Frictional properties at the head/disk interface in the middle of the CSS tests are correlated with the statistical characteristics of surface profile data. The data-processing techniques and the successful evaluation method for the surface texture are presented. It is demonstrated that the height distribution of asperity peaks selected by rolling a circle is able to distinguish subtle discrepancies among textured disk surfaces. The coefficient of friction between a head and a disk is not always dependent upon the mean roughness value of a disk surface, but also upon the height distribution of selected peaks and the liquid lubricant. Without liquid lubrication, the textured disk with a flatter distribution of selected peak heights provides good head/disk-interface durability. Additional liquid lubricant tends to increase the friction force, particularly for the disk with uniformly distributed peaks at the same time.<>
Sponsorship	IEEE Magnetics Society
Starting Page	2502
Ending Page	2504
Page Count	3
File Size	332492
File Format	PDF
ISSN	00189464
Volume Number	26
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1990-09-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Surface texture Transistors Surface topography Rough surfaces Surface roughness Testing Instruments Cascading style sheets Force measurement Data processing
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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