... evaluated for experimentally observed values of D = 1.38
(Majumdar and Bhushan, 1990)
and φ = 0.05
(Bhushan and Doerner, 1989)
for disk type C, and an
assumed value for G
*
= 10
–10
for curve ... combinations, and
therefore for a particular value of V = constant (horizontal line) it is possible to have different asperity
base areas. For each combination of l...
... overview of lubrication studies of polar and nonpolar lubricants and Lang-
muir–Blodgett and chemically grafted films, using atomic force/friction force microscopy.
8.2 Nanodeformation, Adhesive Forces, ... 90, 5 861 –5 868 .
O’Shea, S. J., Welland, M. E., and Rayment, T. (1992), “Atomic Force Microscope Study of Boundary
Layer Lubrication,”
Appl. Phys. Lett.
61 , 2240–2...
... Koinkar, V.N., 1994, J. Appl. Phys. 75, 5741–57 46. With permission.)
Bhushan, B. Micro/ Nanotribology and Micro/ Nanomechanics of Magnetic ”
Handbook of Micro/ Nanotribology.
Ed. Bharat Bhushan
Boca ... Bhushan
(1994a–c), Koinkar and Bhushan (1996a,b, 1997a,b), and Sundararajan and Bhushan (1998).
Koinkar and Bhushan (1996a,b) and Poon and Bhushan (1995a,b) reported th...
... force upon separation of the
tip and sample is often referred to as the pull-off force. Unfortunately, measuring the pull-off force does
not directly give the work of adhesion. The pull-off force ... Bowden and Tabor (1950, 1 964 )
understood the friction and wear of metal–metal sliding in terms of the plastic deformation of asperity
contacts.
5.5.2 Outlook
Part of the exc...
... Methods for Measuring Static and Dynamic Surface
Forces
Adhesion Forces • Force Laws • The Surface Force Apparatus
and the Atomic Force Microscope
9.3 van der Waals and Electrostatic Forces ... Fluctuation Forces: Forces between Soft,
Fluidlike Surfaces
9 .6 Hydration Forces: Special Forces in Water and
Aqueous Solutions
Repulsive Hydration Forces • Attractive Hydrophobic...
... without approximations.
6. 4.2 Deformation of Tip and Sample
The deformation of tip and sample is fundamental to the adhesion and friction of any contact, including
the special case of an SFM or SFFM ... of holes. With higher forces, we observe that particles of
hydrocarbons are pulled out and sheared out of the scanning area while the fluorocarbons remain
undeformed. Co...
... Micro/ Nanoscratch Technique
10 .6 Nanoindentation and Microscratch Techniques
for Adhesion Measurements, Residual Stresses,
and Materials Characterization of Thin Films
Adhesion Strength and ... deflection of a thin film:
(10.17)
FIGURE 10.30 Schematic of a cantilever microbeam deflected by nanoindenter loading mechanism for measure-
ment of modulus of elasticity and...
... atomic
layers). These structures are generally lubricated with molecularly thin films. Micro- and nanotribological
techniques are ideal for studying the friction and wear processes of micro- and nanostructures. ... Role of Micro/ Nanotribology in Magnetic Storage
Devices, MEMS, and Other Microcomponents
References
In this chapter, we first present the history of macrotri...
... square pulse of width 12 between 310 and 3 56, a triangle of period 40 between 3 56 and 3 96,
a triangle of period 20 between 400 and 420, a triangle of period 12 between 430 and 442, and, finally, ... cast the
normal force is simply the average of the forces in the forward and backward direction. The force form
the front, F
Fr
, is the difference of the forces measure...