采用静电纺丝结合溶胶-凝胶技术于800℃煅烧制备了铁氧体Ba0.5Sr0.5Fe12O19纳米纤维,利用XRD、SEM、EDS、TEM分别对样品的物相、形貌、结构等进行了表征.结果表明,所得产物为六方磁铅石型Ba0.5Sr0.5Fe12-O19多晶纤维,纤维直径为100~500nm,Scherrer公式计算晶粒尺寸为40nm.采用振动样品磁强计(VSM)表征样品的磁性能,饱和磁化强度、剩余磁化强度和矫顽力分别为66.659emu/g、35.093emu/g和5097.2Oe,与用传统溶胶-凝胶法在相同温度下煅烧制得的粉体样品相比,磁性能明显提高.
参考文献
[1] | R.C. Pullar;S.G. Appleton;A.K. Bhattacharya .The manufacture, characterisation and microwave properties of aligned M ferrite fibres[J].Journal of Magnetism and Magnetic Materials,1998(3):326-332. |
[2] | Hui Wu;Rui Zhang;Xinxin Liu .Electrospinning of Fe, Co, and Ni Nanofibers: Synthesis, Assembly,and Magnetic Properties[J].Chemistry of Materials: A Publication of the American Chemistry Society,2007(14):3506-3511. |
[3] | Sigmund Wolfgang;Yuh Junhan et al.Processing and str-ucture relationships in electrospining of ceramic fiber systems[J].Journal of the American Ceramic Society,2006,89(02):395. |
[4] | Li D;McCann JT;Xia YN .Electrospinning: A simple and versatile technique for producing ceramic nanofibers and nanotubes[J].Journal of the American Ceramic Society,2006(6):1861-1869. |
[5] | Zhan Sihui;Gong Cairong et al.ZnFe2O4 nanofibers by sol-gel related electrospinning method[J].J Disper Sci Techn,2006,27(07):931. |
[6] | Ju Youngwan;Park Jaewon et al.Electrospun MnFe2O4 nanofibers:Preparation and morphology[J].Composites Science and Technology,2008,68(7-8):1704. |
[7] | Zhongli Wang;Xiaojuan Liu;Minfeng Lv .Preparation of One-Dimensional CoFe2O4 Nanostructures and Their Magnetic Properties[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2008(39):15171-15175. |
[8] | 郭远征,李从举,王娇娜.纳米BaFe12O19纤维的电纺制备及磁性研究[J].无机化学学报,2009(06):1018-1021. |
[9] | R.C. Pullar;A.K. Bhattacharya .The magnetic properties of aligned M hexa-ferrite fibres[J].Journal of Magnetism and Magnetic Materials,2006(2):490-499. |
[10] | 李巧玲,王永飞,叶云,张存瑞.针状纳米SrFe12O19的溶胶-凝胶法制备及磁性研究[J].无机化学学报,2008(06):907-912. |
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