Hostname: page-component-cd9895bd7-fscjk Total loading time: 0 Render date: 2024-12-28T16:10:58.083Z Has data issue: false hasContentIssue false
  • English
  • Français

Direct measurement of plowing friction and wear of a polymer thin film using the atomic force microscope

Published online by Cambridge University Press:  31 January 2011

Binyang Du ,
Mark R. VanLandingham ,
Qingling Zhang  and
Tianbai He
Binyang Du
Affiliation:
State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, People's Republic of China
Mark R. VanLandingham
Affiliation:
Building and Fire Research Laboratory, National Institute of Standards and Technology, 100 Bureau Dr. Stop 8621, Gaithersburg, Maryland 20899-8621
Qingling Zhang
Affiliation:
State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, People's Republic of China
Tianbai He*
Affiliation:
State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, People's Republic of China
*
a)Address all correspondence to this author. e-mial address: tbhe@ns.ciac.jl.cn
Get access

Abstract

Nanometer-scale plowing friction and wear of a polycarbonate thin film were directly measured using an atomic force microscope (AFM) with nanoscratching capabilities. During the nanoscratch tests, lateral forces caused discrepancies between the maximum forces for the initial loading prior to the scratch and the unloading after the scratch. In the case of a nanoscratch test performed parallel to the cantilever probe axis, the plowing friction added another component to the moment acting at the cantilevered end compared to the case of nanoindentation, resulting in an increased deflection of the cantilever. Using free-body diagrams for the cases of nanoindentation and nanoscratch testing, the AFM force curves were analyzed to determine the plowing friction during nanoscratch testing. From the results of this analysis, the plowing friction was found to be proportional to the applied contact force, and the coefficient of plowing friction was measured to be 0.56 ± 0.02. Also, by the combination of nanoscratch and nanoindentation testing, the energetic wear rate of the polycarbonate thin film was measured to be 0.94 ± 0.05 mm3/(N m).

Type
Articles
Information
Journal of Materials Research , Volume 16 , Issue 5 , May 2001 , pp. 1487 - 1492
Copyright
Copyright © Materials Research Society 2001

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1.Bhushan, B., Israelachvill, J.N., and Landman, U., Nature 374, 607 (1995).Google Scholar
2.Kempf, M., Gen, M., and Vehoff, H., Appl. Phys. A 66, S843 (1998).Google Scholar
3.VanLandingham, M.R., Mcknight, S.H., Palmese, G.R., Elings, J.R., Huang, X., Bogetti, T.A., Eduljee, R.F., and Gillespie, J.W. Jr., J. Adhes. 64, 31 (1997).Google Scholar
4.Oliver, W.C. and Pharr, G.M., J. Mater. Res. 7, 1564 (1992).Google Scholar
5.Umemura, S., Andoh, Y., Hirono, S., Miyamoto, T., and Kaneko, R., Philos. Mag. A 74, 1143 (1996).Google Scholar
6.Hamada, E. and Kaneko, R., J. Phys. D 25, A 53 (1992).Google Scholar
7.Anoikin, E.V., Yang, M.M., Chao, J.L., Elings, J.R., and Brown, D.W., J. Vac. Sci. Technol. A 16, 1741 (1998).Google Scholar
8.Wienss, A., PerschSchuy, G., Vogelgesang, M., and Hartmann, U., Appl. Phys. Lett. 75, 1077 (1999).Google Scholar
9.Jones, F.N., Shen, W., Smith, S.M., Huang, Z., and Ryntz, R., Prog. Org. Coat. 34, 119 (1998).Google Scholar
10.Digital Instruments Inc., Support Note No. 225, Rev. F, Santa Barbara, CA, 1998.Google Scholar
11.VanLandingham, M.R., Microsc. Today 97–10, 12 (1997).CrossRefGoogle Scholar
12.Lancaster, J.K., Plast. Polym. 41, 297 (1973).Google Scholar