Browse Prior Art Database

Method of Prolonging the Life of Magnetic Disk Storages

IP.com Disclosure Number: IPCOM000057658D
Original Publication Date: 1988-Jun-01
Included in the Prior Art Database: 2005-Feb-15

Publishing Venue

IBM

Related People

Authors:
Adelhofer, HE Glatzel, MF [+details]

Abstract

A novel method is described which prolongs the life of magnetic disk storages. The magnetic head slider, made of porous glass ceramic material, becomes saturated with lubricant, transferring the absorbed lubricant on the bucket brigade principle from high concentration to low concentration regions. As the contact between disk and slider reduces the life of disk storages, the magnetic layer is coated with lubricant prior to assembly. As a result of the high disk speeds, a centrifugal force is exerted on the lubricant covering the magnetic layer. This centrifugal force produces a spin-off effect, i.e., protective lubricant migrating to the outer disk regions is partly spun off the disk edges and lost.