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Synthesis and magnetic studies of Fe–Ni nanofibres by electrospinning

机译:电纺Fe-Ni纳米纤维的合成及磁性研究

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摘要

Fe–Ni magnetic nanofibres with diameter of 200–400 nm were successfully synthesised viancombining sol–gel with electrospinning method, followed by calcinations and reduction. Thenphase components, structures and magnetic properties were characterised by thermogravimetryndifferential scanning calorimetry (TG-DSC), field emission scanning electron microscope (FESEM),nX-ray powder diffraction (XRD), Fourier transform infrared (FT-IR) and vibrating samplenmagnetometer (VSM) respectively. Effects of Ni contents on the saturation magnetisation and thencoercivity of the nanofibres were also investigated. It has been found that through the processesnthe nanofibres have developed into fine structures and are present in high degree ofncrystallisation with face centred cubic phases. Meanwhile, the magnetic results indicate thatnthe coercivity of the Fe–Ni nanofibres is about an order of magnitude lower than that of Fennanofibres.
机译:溶胶-凝胶电纺丝法成功地合成了直径200-400 nm的Fe-Ni磁性纳米纤维,然后进行煅烧和还原。然后通过热重法,差示扫描量热法(TG-DSC),场发射扫描电子显微镜(FESEM),nX射线粉末衍射(XRD),傅里叶变换红外光谱(FT-IR)和振动样品磁强计(VSM)表征相成分,结构和磁性能。 ) 分别。还研究了镍含量对纳米纤维的饱和磁化强度和矫顽力的影响。已经发现,通过这些过程,纳米纤维已经发展成精细的结构,并且以面心立方相的高度结晶存在。同时,磁性结果表明,Fe-Ni纳米纤维的矫顽力比Fennano纤维的矫顽力低约一个数量级。

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