Scheduled System Maintenance:
On Monday, April 27th, IEEE Xplore will undergo scheduled maintenance from 1:00 PM - 3:00 PM ET (17:00 - 19:00 UTC). No interruption in service is anticipated.
By Topic

Surface roughness effects on flying characteristics of proximity recording heads

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

6 Author(s)
Bedoy, C. ; Comput. Mech. Lab., California Univ., Berkeley, CA, USA ; Bogy, D.B. ; Sullivan, M. ; Du, C.
more authors

The purpose of this experimental study is to understand the effect of disk surface roughness on the flying characteristics of quasi-contact sliders. Three 50% tripad sliders mounted on type 850 suspensions were used with five thin film magnetic disks with RMS roughness values ranging from 1.25 nm to 3.07 mn at the testing radius. Relative spacing results indicated that the slider to disk separation at the slider trailing edge was not greatly affected by the roughness of the disk for disk speeds between 1 mps to 28 mps. It was observed that the slider-disk spacing at a point slightly forward of the slider's trading edge is linear with respect to velocity throughout the range of velocities tested. Interferometric measurements of head-disk sparing at a point near the trailing edge as a function of linear velocity exhibit higher slopes when tested over smoother disks than they did for rougher disks. When the head is still in contact with the disk, this change in spacing can be directly attributed to changes in slider pitch. Since the spacing is linear as a function of velocity, whether the head is in contact or flying, it is believed that the change in spacing is due mainly to changes in slider pitch. The result for the glass disk measurement of spacing vs. velocity had a slope very close to that as tested over a supersmooth disk

Published in:

Magnetics, IEEE Transactions on  (Volume:32 ,  Issue: 5 )