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Mechanical property measurements of one-dimensional nanomaterials

X. Li and H. Ni
University of South Carolina, US

Keywords:
nanomaterials, AFM, bending, mechanical properties

Abstract:
Material properties are size-dependent. The mechanical properties of 1D nanomaterials cannot be extrapolated from the results of bulk materials and structures. Although many 1D nanomaterials have been synthesized/fabricated by various techniques, their mechanical properties have not been well explored. This has limited their applications in constructing reliable nanodevices. In this study, amorphous SiO2 nanowires and ZnO nanobelts were synthesized using CVD via vapor-liquid-solid method, after characterizing their microstructure and composition using various electron microscopy techniques, we successfully measured the mechanical properties of the amorphous SiO2 nanowires and ZnO nanobelts through performing three-point bending tests using an AFM tip to directly bend individual SiO2 nanowires and ZnO nanobelts. We also report a reliable clamping technique for the manipulation and mechanical testing of 1D nanomaterials.

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