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Parametric Investigations at the Head-Disk Interface of Thermal Fly-Height Control Sliders in Contact
Joint Authors
Murthy, Aravind N.
Bogy, David B.
Wang, Run-Han
Canchi, Sripathi V.
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-12-12
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Accurate touchdown power detection is a prerequisite for read-write head-to-disk spacing calibration and control in current hard disk drives, which use the thermal fly-height control slider technology.
The slider air bearing surface and head gimbal assembly design have a significant influence on the touchdown behavior, and this paper reports experimental findings to help understand the touchdown process.
The dominant modes/frequencies of excitation at touchdown can be significantly different leading to very different touchdown signatures.
The pressure under the slider at touchdown and hence the thermal fly-height control efficiency as well as the propensity for lubricant pickup show correlation with touchdown behavior which may be used as metrics for designing sliders with good touchdown behavior.
Experiments are devised to measure friction at the head-disk interface of a thermal fly-height control slider actuated into contact.
Parametric investigations on the effect of disk roughness, disk lubricant parameters, and air bearing surface design on the friction at the head-disk interface and slider burnishing/wear are conducted and reported.
American Psychological Association (APA)
Canchi, Sripathi V.& Bogy, David B.& Wang, Run-Han& Murthy, Aravind N.. 2012. Parametric Investigations at the Head-Disk Interface of Thermal Fly-Height Control Sliders in Contact. Advances in Tribology،Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-461758
Modern Language Association (MLA)
Canchi, Sripathi V.…[et al.]. Parametric Investigations at the Head-Disk Interface of Thermal Fly-Height Control Sliders in Contact. Advances in Tribology No. 2012 (2012), pp.1-11.
https://search.emarefa.net/detail/BIM-461758
American Medical Association (AMA)
Canchi, Sripathi V.& Bogy, David B.& Wang, Run-Han& Murthy, Aravind N.. Parametric Investigations at the Head-Disk Interface of Thermal Fly-Height Control Sliders in Contact. Advances in Tribology. 2012. Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-461758
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-461758