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Nanotribology and Nanomechanics: An Introduction by Bharat Bhushan

By Bharat Bhushan

This quantity serves as a well timed, sensible advent to the rules of nanotribology and nanomechanics and functions to magnetic garage platforms, MEMS/NEMS and BioMEMS/bioNEMS. Assuming a few familiarity with macrotribology/mechanics, the booklet contains chapters through across the world well-known specialists, who combine wisdom of the sector from the mechanics and materials-science views. They conceal key size strategies, their purposes, and theoretical modelling of interfaces, every one starting their contributions with macro- and progressing to microconcepts. After reviewing the basic experimental and theoretical facets within the first half, Nanotribology and Nanomechanics then treats purposes. 3 teams of readers tend to locate this article priceless: graduate scholars, study staff, and working towards engineers. it could possibly function the foundation for a finished, one- or two-semester path in scanning probe microscopy; utilized scanning probe strategies; or nanotribology/nanomechanics/nanotechnology, in departments similar to mechanical engineering, fabrics technology, and utilized physics. This moment, revised version is considerably enlarged by way of 3 new chapters: One new bankruptcy introduces to the speculation, physics and characterization of the Lotus-Effect. different new chapters speak about the attaching houses of hairs as learned at gecko ft and current a entire evaluation of structural, mechanical, and tribological houses of varied hair and epidermis as a functionality of ethnicity, harm, conditioning therapy, and diverse environments. With a Foreword by way of Physics Nobel Laureate Gerd Binnig

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01 nm/s, and, second, the piezoelectric crystal is designed to provide a small sinusoidal motion, in order to determine the dynamic behavior of sphere-plane interactions. A third capacitance sensor C measures the electrical capacitance between the sphere and the plane. In all cases, the capacitance is determined by incorporating the signal of an oscillator in the inductive–capacitance (L–C) resonant input stage of an oscillator to give a signal-dependent frequency in the range of 5–12 MHz. The resulting fluctuations in oscillation frequency are detected using a low noise fre- 22 Bharat Bhushan Fig.

The shear force apparatus is shown in Fig. 14. Three piezoelectric elements controlled by three capacitance sensors permit accurate motion control and force measurement along three orthogonal axes with displacement sensitivity of 10−3 nm and force sensitivity of 10−8 N. Adhesion and normal deformation experiments are conducted in the normal approach (z-axis). Friction experiments are conducted by introducing displacement in the X-direction at a constant normal force. In one of the experiment, Georges et al.

It also suggests, that static friction should depend critically on the sliding time and the extend of the shear induced ordering [53]. In contrast, the oscillatory shear method, which utilizes periodic sinusoidal oscillations over a range of amplitudes and frequencies, addresses a response of the system to rapidly varying strain rates and directions of sliding. Under these conditions, the molecules, especially those exhibiting a solid-like behavior, cannot respond sufficiently fast to stress and are unable to order fully during duration of a single pass, i.

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