Magnetic properties and special morphology of barium ferrite via electrospinning
来源期刊：Rare Metals2017年第2期
论文作者：Gui-Fang Liu Run-Hua Fan Zi-Dong Zhang Jing Li Min Chen Qian-Qian Li Lu Lu Pei-Tao Xie
文章页码：113 - 117
摘 要：Barium ferrite micro-/nanofibers with special morphology,nanowires with diameters of 100 nm,nanoribbons with diameters of 1μm,and nanotubes with outer diameter of about 300 nm while inner diameter of 100 nm were successfully prepared via electrospinning using different solvents（dimethyl formamide（DMF）,solutions of deionized water and ethyl alcohol,and solutions of deionized water and acetic acid,respectively）.The barium ferrite micro-/nanofibers were characterized by scanning electron microscope（SEM）,X-ray diffraction analysis（XRD）,and vibration sample magnetometer（VSM）.The results demonstrate that the pure BaFe12O19 ferrite phase is successfully formed.And the SEM results show excellent morphologies.The magnetic hysteresis loops demonstrate that their magnetic properties are quite different with different morphologies.The specific saturation magnetization is approximately the same(46.12-49.17 A·m2·kg-1),but the coercivity of the BaFe12O19 increases from wires(190.08 kA·m-1),ribbons(224.16 kA·m-1) to tubes(258.88 kA·m-1).
Gui-Fang Liu，Run-Hua Fan，Zi-Dong Zhang，Jing Li，Min Chen，Qian-Qian Li，Lu Lu，Pei-Tao Xie
Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials,Ministry of Education,Shandong University
摘 要：Barium ferrite micro-/nanofibers with special morphology,nanowires with diameters of 100 nm,nanoribbons with diameters of 1μm,and nanotubes with outer diameter of about 300 nm while inner diameter of 100 nm were successfully prepared via electrospinning using different solvents（dimethyl formamide（DMF）,solutions of deionized water and ethyl alcohol,and solutions of deionized water and acetic acid,respectively）.The barium ferrite micro-/nanofibers were characterized by scanning electron microscope（SEM）,X-ray diffraction analysis（XRD）,and vibration sample magnetometer（VSM）.The results demonstrate that the pure BaFe12O19 ferrite phase is successfully formed.And the SEM results show excellent morphologies.The magnetic hysteresis loops demonstrate that their magnetic properties are quite different with different morphologies.The specific saturation magnetization is approximately the same(46.12-49.17 A·m2·kg-1),but the coercivity of the BaFe12O19 increases from wires(190.08 kA·m-1),ribbons(224.16 kA·m-1) to tubes(258.88 kA·m-1).
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