NDLI: Strategies for improvement of tribological characteristics at the head/disk interface

Content Provider	IEEE Xplore Digital Library
Author	Dae-Eun Kim Joon-Woo Park Dong-Kuk Han Yong-Shik Park Koo-Hyun Chung No-Yeol Park
Copyright Year	1965
Abstract	Tribological optimization of the head/disk interface is crucial to attain reliable performance of hard disk drives. As the flying height of the slider above the disk continues to decrease with increase in recording density, the concern for surface damage is greater than ever before. In this work a novel method to reduce debris contamination by way of trapping the particles in micro-grooves on the slider surface to protect the head is proposed. Tests performed with dummy sliders with several types of strategically designed micro-grooves show that the grooves are effective in removing the wear debris at the slider/disk interface. Furthermore, concept for stiction-free slider design has been investigated. Micro-bumps were fabricated on a slider surface in order to reduce stiction. Preliminary tests show that compared with conventional sliders, these sliders result in significantly lower stiction during contact-start-stop tests performed on the data zone of a magnetic disk. The concepts proposed in this work may be utilized in the design of future sliders for low flying heads on super-smooth disks.
Sponsorship	IEEE Magnetics Society
Starting Page	912
Ending Page	917
Page Count	6
File Size	191668
File Format	PDF
ISSN	00189464
Volume Number	37
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-03-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic heads Surface contamination Testing Hard disks Disk recording Protection Performance evaluation Cascading style sheets Helium Shape
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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Study on soft-particle intrusion in a head/disk interface of load/unload drives

Assessment of surface damage mechanisms of head/disk interface using CSS and drag tests

Dynamic load head-disk interface durability of 50 percent sliders and polished disks

The Tribological Properties of the New Structure Lubricant at the Head–Disk Interface

Effect of disk cross hatch texture on tribological performance

Effect of slider load on the wear debris contamination tendency of head/slider

Production process and high density recording characteristics of plated disks

Recording characteristics of perpendicular magnetic hard disk measured by nonflying single-pole head

Stiction free slider for lightly textured disks

Strategies for improvement of tribological characteristics at the head/disk interface

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Dynamic load head-disk interface durability of 50 percent sliders and polished disks

The Tribological Properties of the New Structure Lubricant at the Head–Disk Interface

Effect of disk cross hatch texture on tribological performance

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