Effect of Surface Stress on Micromechanical Cantilevers for Sensing Applications
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Model III for surface stress loading effect is then used to demonstrate the applications of a microcantilever in sensor technology through the measurement of tip deflection under an atomic adsorption as the source of surface stress. Dual attractive or repulsive characteristics of interactions between a pair of mercury atoms are described in terms of Lennard-Jones potential. The force per unit atomic spacing induced by the adjacent free surface atoms of a monolayer is then computed using the potential. The sensitivities of atomic spacing and monolayer thickness to the tip-deflection of a microcantilever are studied in this research.
- Masters Theses