High shear rate viscosity measurements of perfluoropolyether lubricants for magnetic thin-film rigid disks

被引：11

作者：

Hahm, CD

Bhushan, B

机构：

[1] Department of Mechanical Engineering, Comp. Microtribology C., Ohio State University, Columbus

来源：

JOURNAL OF APPLIED PHYSICS | 1997年 / 81卷 / 08期

关键词：

D O I：

10.1063/1.364548

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Lubricant rheology data relevant to the very high shear rates encountered in disk drive operation do not exits. In this study, the viscosity of eight perfluoropolyether lubricants is measured at shear rates up to 10(7) s(-1) at ambient pressure. All eight lubricants display Newtonian behavior at all shear rates. No shear thinning was observed and the lubricants were found capable of sustaining extremely high tensile stresses, on the order of 1 MPa. (C) 1997 American Institute of Physics.

引用

页码：5384 / 5386

页数：3