NDLI: Effect of Flying Pitch and Roll Angles on Lubricant Transfer Between Disk and Slider

Content Provider	IEEE Xplore Digital Library
Author	Deng Pan Ovcharenko, A. Jih-Ping Peng Sanchez, S. Radicati, F. Min Yang
Copyright Year	1965
Abstract	In this paper, the effect of flying pitch angle and flying roll angle on lubricant transfer from the disk to the slider was experimentally studied. A flying height tester, which can measure flying pitch angle and flying roll angle of a slider, was used to study lubricant transfer from the disk to the slider without head/disk contacts. Transparent glass disks with a thin layer of lubricant were used. A charge-couple device camera was used to observe in situ, the lubricant transfer and lubricant flow on the slider surface, while time-of-flight secondary ion mass spectrometry was used to identify lubricant distribution on the slider surface after the test. The experimental results showed that lubricant flow follows the slider skew direction, i.e., lubricant flow goes toward the outer trailing edge (TE) of the slider when it flies at the inner diameter, and toward the inner TE of the slider when it flies at the outer diameter. In addition, flying roll angle plays a more dominant role than flying pitch angle on lubricant transfer from the disk to the slider.
Sponsorship	IEEE Magnetics Society
Starting Page	1
Ending Page	7
Page Count	7
File Size	1912913
File Format	PDF
ISSN	00189464
Volume Number	50
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Lubricants Optical imaging Hard disks Image edge detection Films Standards Rails lubricant transfer Flying pitch angle flying roll angle hard disk drive (HDD)
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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Measurement of thickness of molecularly thin lubricant film using ellipsometric microscopy

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Effects of functional end-groups on nano-tribology characteristics of ultra-thin liquid lubricant films in hard disk drives

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Effect of Flying Pitch and Roll Angles on Lubricant Transfer Between Disk and Slider

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