Adsorption properties of lubricant and additive for high durability of magnetic disks

Author

Matsumoto, H. ; Tani, H. ; Nakakawaji, T.

Author_Institution

Res. Lab., Hitachi Ltd., Ibaraki, Japan

Volume

36

Issue

5

fYear

2000

fDate

9/1/2000 12:00:00 AM

Firstpage

2680

Lastpage

2682

Abstract

Additives, such as cyclotriphosphazenes, those are mixed to the perfloropolyethers (PFPE) lubricants are used in order to improve the tribological properties of magnetic disks. The proper concentration of additive improved the CSS performances. The effects of additive were clarified using several kinds of instruments. There was no segregation of each molecule in the less than 2-nm-thick film. The additive had the effect on increasing the mobile layer of the layered structure. The coverage of the mixed lubricant film with an additive was higher than that of PFPE. The reflow rate of the mixed lubricant film was larger. The higher coverage and the higher reflow rate of the mixed lubricant film improve the durability of magnetic disk

Keywords

adsorption; lubrication; magnetic disc storage; polymer films; CSS durability; MP-3H; adsorption; coverage; cyclotriphosphazene additive; head-disk interface; magnetic disk; mixed film; perfloropolyether lubricant; reflow rate; tribological properties; Additives; Amorphous magnetic materials; Atomic force microscopy; Infrared spectra; Instruments; Lubricants; Lubrication; Magnetic films; Magnetic properties; Magnetic separation;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.908557

Filename

908557