QUANTITATIVE-DETERMINATION OF FRICTION COEFFICIENTS BY FRICTION FORCE MICROSCOPY

被引:18
作者
PUTMAN, C
IGARASHI, M
KANEKO, R
机构
[1] NTT Interdisciplinary Research Laboratories, Tokyo, 180
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1995年 / 34卷 / 2B期
关键词
FRICTION FORCE MICROSCOPY; NEW CALIBRATION METHOD; QUANTITATIVE FRICTION COEFFICIENTS; SINGLE-ASPERITY FRICTION;
D O I
10.1143/JJAP.34.L264
中图分类号
O59 [应用物理学];
学科分类号
摘要
A new way of obtaining absolute friction coefficients using the friction force microscope is presented. For microfabricated cantilevers it is very difficult to calculate reliable torsion and normal spring constants; both the shear and the Young's modulus are not well known. Their ratio, however, is constant and close to the bulk value, This fact is used to obtain quantitatively reliable friction coefficients. Furthermore, a new calibration method for the friction-signal detector is introduced. The measured friction coefficients for a silicon-nitride tip on mice. silicon and glass are: 0.071, 0.20 and 0.23. Occasionally non-linear effects, indicating possible single-asperity friction, were observed.
引用
收藏
页码:L264 / L267
页数:4
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