Investigation of phosphazene additive for magnetic recording lubrication

Author

Mate, C. Mathew ; Kasai, Paul H. ; Tyndall, George W. ; Lee, Charles H. ; Raman, Vedantham ; Pocker, Daryl J. ; Waltman, Robert J.

Author_Institution

IBM Almaden Res. Center, San Jose, CA, USA

Volume

34

Issue

4

fYear

1998

fDate

7/1/1998 12:00:00 AM

Firstpage

1744

Lastpage

1746

Abstract

The addition of X-IP to the Fomblin Z-Dol disk lubricant is found to improve the contact start-stop (CSS) durability of hydrogenated carbon overcoated disks. Two-angle electron spectroscopy for chemical analysis (ESCA), contact angle measurements, spin-off measurements, and degradation studies on powdered AlCl₃ and Al₂O₃ are used to show that X-IP improves lubrication by perfluoropolyethers on magnetic disks by chemically interacting with disk and slider surfaces so as to block sites for lubricant degradation, to lower surface energies, and to increase lubricant mobility

Keywords

carbon; contact angle; hard discs; hydrogen; lubrication; organic compounds; polymers; spectrochemical analysis; surface energy; wear resistant coatings; Al₂O₃; AlCl₃; C:H; ESCA; Fomblin Z-Dol disk lubricant; X-IP; chemical analysis; contact angle measurements; contact start-stop durability; degradation studies; hydrogenated carbon overcoated disks; lubricant degradation; lubricant mobility; magnetic disks; magnetic recording lubrication; perfluoropolyethers; phosphazene additive; powdered AlCl₃; slider surfaces; spin-off measurements; surface energies; two-angle electron spectroscopy; Cascading style sheets; Chemical analysis; Degradation; Electron mobility; Energy measurement; Goniometers; Lubricants; Lubrication; Magnetic recording; Spectroscopy;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.706691

Filename

706691