Design of tensile device of nanomaterials and quantitative analysis

Based on a piezoelectric ceramic, a new experimental device was designed which could be used to conduct the in-situ tensile deformation test for one dimensional nanomaterials. A cantilever tip, which was used to measure the force, was also introduced to do the quantitative measurements during the mechanical properties experiments of nanomaterials, the force loaded to the sample can be calculated via the deformation of the cantilever tip. With this homemade in-situ nanomaterials tensile device, in-situ tensile experiments under both optical microscopy and scanning electron microscopy of single SiO₂ nanowires prepared by thermal evaporation method were conducted. The experimental results indicate that this device can conduct the tensile deformation test effectively and give the quantitative result of the force signal loaded to the material sample itself at the same time.