HERTZIAN STRESS CONTRIBUTION TO LOW FRICTION BEHAVIOR OF THIN MOS2 COATINGS

被引：215

作者：

SINGER, IL ^{[1
]}

BOLSTER, RN ^{[1
]}

WEGAND, J ^{[1
]}

FAYEULLE, S ^{[1
]}

STUPP, BC ^{[1
]}

机构：

[1] HOHMAN PLATING & MFG INC,DAYTON,OH 45404

来源：

APPLIED PHYSICS LETTERS | 1990年 / 57卷 / 10期

关键词：

D O I：

10.1063/1.104276

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Friction coefficients were measured for bearing materials slid in dry air against sputter-deposited MoS2-coated substrates. Ball versus flat tests were performed over a wide range of initial Hertzian pressures (200-1500 MPa) by varying loads (1-50 N), elastic moduli (70-615 GPa), and ball diameters (1.6-12.7 mm). The friction coefficient μ decreased as load L increased according to μ∝ L(-0.32), in agreement with the Hertzian contact model. Regression analysis of over 600 data points for friction coefficient versus Hertzian pressure (PH), fitted to μ=(S 0/PH)+α, gave mean values of the shear strength S0=24.8 MPa±0.5 and α= 0.001±0.001, with S 0 in good agreement with values in the literature.

引用

页码：995 / 997

页数：3

共 32 条

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