Format

Send to

Choose Destination
Nanotechnology. 2009 Jul 15;20(28):285710. doi: 10.1088/0957-4484/20/28/285710. Epub 2009 Jun 24.

Nanoscale roughness contact in a slider-disk interface.

Author information

1
Data Storage Institute, 5 Engineering Drive 1, Off Kent Ridge Crescent, Singapore.

Abstract

The nanoscale roughness contact between molecularly smooth surfaces of a slider-disk interface in a hard disk drive is analyzed, and the lubricant behavior at very high shear rate is presented. A new contact model is developed to study the nanoscale roughness contact behavior by classifying various forms of contact into slider-lubricant contact, slider-disk elastic contact and plastic contact. The contact pressure and the contact probabilities of the three types of contact are investigated. The new contact model is employed to explain and provide insight to an interesting experimental result found in a thermal protrusion slider. The protrusion budget for head surfing in the lubricant, which is the ideal state for contact recording, is also discussed.

PMID:
19550006
DOI:
10.1088/0957-4484/20/28/285710
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for IOP Publishing Ltd.
Loading ...
Support Center