By J. Drelich, Kash L. Mittal
Due to the fact its discovery, Atomic strength Microscopy (AFM) has develop into a method of selection for non-destructive floor characterization with sub-molecular solution. The AFM has additionally emerged as a problem-solving software in purposes suitable to particle-solid and particle-liquid interactions, layout, fabrication, and characterization of latest fabrics, and improvement of latest applied sciences for processing and amendment of fabrics. This quantity is a accomplished evaluation of AFM ideas and their program in adhesion reports.
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Additional resources for Atomic Force Microscopy in Adhesion Studies
Colloids Interface Sci. 92, 92 (1983). 20. D. Maugis and B. Gauthier-Manuel, J. Adhesion Sci. Technol. 8, 1311 (1994). 21. B. Cappella and G. Dietler, Surface Sci. Rep. 34, 1 (1999). 22. R. W. Carpick, D. E Ogletree and M. Salmeron, J. Colloid Interface Sci. 211, 395 (1999). 23. E. Barthel, J. Colloid Interface Sci. 200,7 (1998). 24. S. K. R. Chowdhury and H. M. Pollock, Wear 66,307 (1981). 3. 4. 5. 6. 157 p, transition parameter 74 P V X . Shi and Z - l ? Zhao ( g g ) l i 3 , Tabor number Poisson’s ratio Atomic Force Microscopy in Adhesion Studies, pp.
In particular, we show how the JKR-to-DMT transition is taken into account, as well as limitations involved in using these models of contact in the presence of adhesion. Keywords: Atomic force microscopy (AFM); adhesion; friction; nanotribology; contact mechanics. 1. INTRODUCTION With the rising interest in nanotechnology, new fields of research have emerged in the attempt to understand nanoscale science and engineering. One of these fields is nanotribology, the nanoscale analogue to the macroscale study of friction and wear [ 1, 21.
Characteristics of this theory include infinite tensile stress at the contact area perimeter, a non-zero contact area at zero load and a minimum stable normal load which still exhibits a non-zero contact area. This minimum load can be called the pull-off force or critical load Pc, and is given by: n 3 P c ( ~ m=) - - n y R . 2 (3) Shortly thereafter, Derjaguin, Muller and Toporov (DMT) [lo] derived a separate expression to include adhesion in the contact of elastic bodies. They assumed that the deformed contact profile remained the same as in the Hertz theory, but with an overall higher load due to adhesion.
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