Nanomechanical Property Measurements of SrTiO3 Submicron-fiber

Qingfeng Zhu; Yuxia Gao; Yang Yang; Yongli Huang; Xiaolan Tan; Feng An; Kai Pan; Shuhong Xie

doi:10.1007/s11595-018-1973-y

Journal of Wuhan University of Technology Materials Science Edition ›› 2018, Vol. 33 ›› Issue (6) : 1350 -1354. DOI: 10.1007/s11595-018-1973-y

Advanced Materials

Nanomechanical Property Measurements of SrTiO₃ Submicron-fiber

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Abstract

Strontium titanate (SrTiO₃) submicron-fibers with perovskite structure were successfully synthesized by electrospinning method. The nanomechanical properties of synthesized SrTiO₃ were investigated by the novel amplitude modulation-frequency modulation (AM-FM) method based on atomic force microscope and nanoindentation technique. The results of AM-FM show that the resonant frequency of SrTiO₃ submicron-fiber is lower than that of the Si substrate, which indicates that the Young’s modulus of SrTiO₃ submicron-fiber is smaller than that of Si substrate in the range of 105–125 GPa. Nanoindentation further confirmed the results, showing a value of 104 ± 17 GPa. The atomic force microscope-based AM-FM provides us a new way to study the mechanical performance of low dimensional materials.

Keywords

submicron-fiber / electrospinning / amplitude modulation-frequency modulation / nanoindentation / Young’s modulus

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Qingfeng Zhu, Yuxia Gao, Yang Yang, Yongli Huang, Xiaolan Tan, Feng An, Kai Pan, Shuhong Xie. Nanomechanical Property Measurements of SrTiO₃ Submicron-fiber. Journal of Wuhan University of Technology Materials Science Edition, 2018, 33(6): 1350-1354 DOI:10.1007/s11595-018-1973-y