By Topic

Characterization of the head-disk interface at nanometer dimensions

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Gupta, B.K. ; Read-Rite Corp., Fremont, CA, USA ; Menon, A.K.

Characterization of the head and disk surfaces at nanometer dimensions is crucial for optimizing the tribological performance of the head-disk interface as discussed in the following examples given in this paper. Friction mapping at a nano-scale is used to study the nucleation sites of smears on a disk from a failed drive showing high nonrecoverable error rate at the OD. Nanoindentation data suggest that the hardness of the alumina grains is comparable to that of the TiC grains. Al2O3-TiC substrates from vendor B exhibit the lowest hardness of 30 GPa. During the CSS test, sliders with vendor B Al2O3-TiC substrates exhibit relatively greater amount of wear debris and grain pullouts as compared to those of the vendors A and C. The nature of the damage to the DLC coating during nanoscratching can be qualitatively correlated to hardness, toughness, high residual stresses, and weak adhesion due to an impurity at the coating-substrate interface. The correlation between the highest nanowear resistance and best CSS wear performance of DLC coatings indicates that the wear properties at a nanoscale can be used as an indirect measure of the CSS performance of the carbon overcoats

Published in:

Magnetics, IEEE Transactions on  (Volume:35 ,  Issue: 2 )