Characterization of Young’s Modulus of Nanowires on Microcantilever Beams

Abstract

A new approach to measure the elastic modulus of nanowires is presented in this paper using a nanowire and a microcantilever beam composite system. The mechanical behavior of a nanowire-microcantilever beam structure under electrostatic actuation was studied using the finite element method, and a comparison of the resonance frequencies for a nanowire-microcantilever composite beam structure and a microcantilever beam only is presented. The test system can be optimized by introducing arrays of nanowires to increase the resonance frequency difference between the microcantilever beams and the nanowire array microbeam structures.

Young’s modulus of multi-layer microcantilevers

“…[10][11][12][13][14][15][16][17] As the critical issues of mechanical performance of microcantilevers, Young's modulus [18][19][20][21][22][23] and resonant frequency [24][25][26][27][28][29][30][31] have been studied by various characterizations. In this research, atomic force microscopy (AFM) measurement is conducted to characterize resonant frequency of multi-layer microcantilevers, and a theoretical model is proposed and discussed including the impact of coating on both Young's modulus and resonant frequency.…”

Temperature-Dependent Modulus of Metals Based on Lattice Vibration Theory

“…As one of the most important parameters for materials in engineering, elastic modulus has been intensively studied especially in the field of metal and its alloys [1]. Due to its vitality, researchers have developed many methods either to measure it experimentally or predict it theoretically, not only for bulk specimens [2] but also for film/substrate systems [3,4] and even nanowires [5]. Born and Huang first proposed the temperature-dependent theory of modulus [6], and their theory adopted the Mie-Gr€ uneisen state equations and used the interparticle potential energy to directly express the isothermal bulk modulus.…”