Synthesis and mechanical properties characterization of multiferroic BiFeO3-CoFe2O4 composite nanofibers |
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| Authors: | Feng An Gaokuo Zhong Qingfeng Zhu Yongli Huang Yang Yang Shuhong Xie |
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| Affiliation: | 1. School of Materials Science and Engineering, Hunan Provincial Key Laboratory of Thin Film Materials and Devices, Xiangtan University, Xiangtan 411105, China;2. Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105, China;3. Department of Mechanical Engineering, University of Washington, Seattle, WA 98195, USA |
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| Abstract: | Multiferroic nanofibers with excellent mechanical properties have great potential applications in multifunctional nanodevices. BiFeO3-CoFe2O4 (BFO-CFO) composite nanofibers with different molar ratios were successfully synthesized by sol-gel-based electrospinning method. The mechanical properties of BFO-CFO composite nanofibers were examined by nanoindentation technique, and further investigated by amplitude modulation-frequency modulation (AM-FM) method based on atomic force microscopy (AFM). The results of AM-FM showed that the elastic moduli of BFO-CFO composite nanofibers increased with the increase of CFO ratio, which was consistent with the results of nanoindentation. These results indicated that AFM-based AM-FM is a powerful method for nondestructively investigating the mechanical properties of materials at nanoscale, and that the results of BFO-CFO composite nanofibers are also of practical importance for the future applications of multifunctional nanodevices. |
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| Keywords: | Multiferroic Mechanical properties BFO-CFO nanofibers Nanoindentation AM-FM |
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