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以压电陶瓷为主体设计了一种用于单体纳米材料原位拉伸变形实验的装置,为了实现力学性能的定量化测量,在该装置中加装了用于测量力的悬臂梁针尖,通过悬臂梁针尖的变形可实现纳米材料力学性能测试中的定量化性能测试.利用该自主设计的纳米材料拉伸仪,以利用热蒸发法制备的非晶氧化硅纳米线为实例,在光学显微镜和扫描电子显微镜下进行了原位力学性能测试实验.实验结果显示:该原位纳米材料拉伸装置可以有效地实现纳米材料的拉伸变形操作,同时对施加在材料样品本身上的力学信号给出定量化的结果.
In order to achieve the quantitative measurement of mechanical properties, a device for the in-situ tensile deformation of monolithic nanomaterials was designed by using piezoelectric ceramic as the main body. A cantilever tip for measuring force was installed in the device, Through the deformation of the tip of the cantilever, it can be used to quantitatively test the mechanical properties of nanomaterials.Using this self-designed nanomaterial tensile tester, amorphous silicon oxide nanowires prepared by thermal evaporation method are taken as an example, And in situ scanning electron microscopy (SEM) .Experimental results show that the in-situ nano-material stretching device can effectively achieve the tensile deformation of nano-materials, and at the same time, the mechanical signals applied to the sample A quantified result.