Nano Archive

Young's modulus of ZnO nanobelts measured using atomic force microscopy and nanoindentation techniques

Ni, Hai and Li, Xiaodong (2006) Young's modulus of ZnO nanobelts measured using atomic force microscopy and nanoindentation techniques. NANOTECHNOLOGY, 17 (14). pp. 3591-3597.

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Official URL: http://dx.doi.org/10.1088/0957-4484/17/14/039

Abstract

The bending Young's modulus of ZnO nanobelts was measured by performing three-point bending tests directly on individual nanobelts with an atomic force microscope (AFM). The surface-to-volume ratio has no effect on the bending Young's modulus of the ZnO nanobelts for surface-to-volume ratios ranging from 0.017 to 0.035 nm(2) nm(-3), with a belt size of 50 - 140 nm in thickness and 270 - 700 nm in width. The bending Young's modulus was measured to be 38.2 +/- 1.8 GPa, which is about 20% higher than the nanoindentation Young's modulus of 31.1 +/- 1.3 GPa. The ZnO nanobelts exhibit brittle fracture failure in bending but some plastic deformation in indentation.

Item Type:Article
Subjects:Physical Science > Nanophysics
Analytical Science > Microscopy and probe methods
Material Science > Nanostructured materials
ID Code:3731
Deposited By:Farnush Anwar
Deposited On:22 Jan 2009 14:08
Last Modified:29 Jan 2009 13:41

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