NDLI: Disk burnishing for head-wear reduction studied by pin-on-disk tests

Content Provider	IEEE Xplore Digital Library
Author	Kawakubo, Y. Miyazawa, S. Kobayashi, K. Kobatake, S. Nakazawa, S.
Copyright Year	1965
Abstract	In recent hard disk drives, head-disk contacts are becoming unavoidable with the decrease in head-disk spacing to less than 10-nm levels. Head-wear reduction is one of the main subjects to be studied for further reducing of the spacing. For this purpose, we started the study of the disk burnishing technique on pin wear using transparent pin-on-disk seek wear tests, in addition to the effects of carbon overcoat films, lubricants, and disk roughness. Conventionally, there have been two disk burnishing techniques, head burnishing (HB) and tape burnishing (TB). We proposed another new burnishing technique, contact burnishing (CB). In CB, a hard spherical pin is pressed onto a disk surface and it burnishes disk asperities. Considering HB would not be effective for disk surface machining, we also studied TB. In this paper, we first describe the importance of disk burnishing with our extended wear equation. The CB technique and its effects will be explained next, and the effects of TB conditions on pin wear are then illustrated.
Sponsorship	IEEE Magnetics Society
Starting Page	802
Ending Page	807
Page Count	6
File Size	668851
File Format	PDF
ISSN	00189464
Volume Number	41
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-02-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Burnishing Testing Magnetic heads Vibrations Lubricants Equations Magnetic films Hard disks Rough surfaces Surface roughness tape burnishing (TB) Contact burnishing (CB) disk burnishing head wear pin-on-disk wear test
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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