The effect of hydrogen in carbon overcoats on the tribology of the head-disk interface

Run-Han Wang Run-Han Wang,S.W Meeks,R.L White,W.E Weresin

doi:10.1109/20.490190

The effect of hydrogen in carbon overcoats on the tribology of the head-disk interface

Run-Han Wang Run-Han Wang, S.W Meeks + Show 2 more

https://doi.org/10.1109/20.490190

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Journal: IEEE transactions on magnetics	Publication Date: Jan 1, 1995
Citations: 24

Affiliation: IBM Research - Almaden

#Optical Surface Analyzer #Carbon Overcoat + Show 8 more

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Abstract

The effect of hydrogen in the carbon overcoat on the CSS durability of thin film media lubricated with perfluoropolyether (PFPE) is reported. A strain-gauge force transducer and optical surface analyzer (OSA) were employed to investigate the failure mechanism. The OSA provided in-situ monitoring of lubricant migration and modification as well as carbon wear. Durability improved with increasing hydrogen content over the range from 12 to 36 at% of H. The improvement is attributed to changes in lubricant bonding and mobility as a function of hydrogen content.

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