Jang Hoon-Sik, Jeon Sang Koo, Kwon Oh-Heon, Nahm Seung Hoon
Center for New and Renewable Energy Measurement, Korea Research Institute of Standards and Science, Daejeon 305-340, Korea.
J Nanosci Nanotechnol. 2011 Jan;11(1):721-4. doi: 10.1166/jnn.2011.3188.
The bending and tensile tests of the ZnO nanorods were carried out by controlling a force sensor and a nano-manipulator inside a scanning electron microscope (SEM). The force sensor was mounted on the nano-manipulator, was controlled with the nano-manipulate. The load response during the mechanical test for the ZnO nanorod was obtained by using the force sensor which is formed as a cantilever. The elastic modulus of the ZnO nanorods after the tensile and bending tests were calculated and compared. The elastic modulus of ZnO nanorods was depended on a size and an aspect ratio of the ZnO nanorods. The difference of the elastic modulus of ZnO nanorods was obtained with a difference of test methods performed along crystal facets direction of the ZnO nanorods. The average elastic modulus calculated after the tensile test was approximately 57.15 GPa. In case of the bending test, the average elastic modulus was approximately 29.37 GPa.
通过在扫描电子显微镜（SEM）内部控制一个力传感器和一个纳米操纵器，对氧化锌纳米棒进行弯曲和拉伸测试。力传感器安装在纳米操纵器上，并通过纳米操纵进行控制。在对氧化锌纳米棒进行机械测试期间，通过使用形成为悬臂的力传感器获得负载响应。计算并比较了拉伸和弯曲测试后氧化锌纳米棒的弹性模量。氧化锌纳米棒的弹性模量取决于氧化锌纳米棒的尺寸和纵横比。氧化锌纳米棒弹性模量的差异是通过沿氧化锌纳米棒晶面方向执行的测试方法的差异获得的。拉伸测试后计算出的平均弹性模量约为57.15 GPa。在弯曲测试的情况下，平均弹性模量约为29.37 GPa。
