航空材料学报2011，Vol.31Issue(6)：55-61,7.DOI:10.3969/j.issh.1005-5053.2011.6.010
镧掺杂锶铁氧体/聚苯胺纳米复合材料的制备及电磁性能
Prepared and Electromagnetic Properties of La Doped Strontium Ferrite/Polymer Composite
摘要
Abstract
To compare the electromagnetic properties of La-doped strontium ferrites nanocomposite in different form, strontium ferrites particle doped with La were synthesized by sol-gel, strontium ferrite/PANI nanocomposites were prepared by in situ polymerization method, La doped nano-strontium ferrite/PSS film and SrLa0.4Fe11.6O,9/PSS/PANI mult-layers film were prepared by electrostatic self-assembly technique. The structure, morphology and ferromagnetic property of ferrite particle and nanocomposites were characterized by X-ray powder diffractometer (XRD) , Fourier transform infrared spectra (FTIR) , Transmission electron microscope (TEM) , X-ray photoelectron spectrum ( XPS) , Magnetic vector network analyzer and vibrating sample magnetometer ( VSM ) . The results indicate that at 9.21GHz,the strength of microwave absorption properties of all is; ( SrLa0.4Fe11.6O19/PSS/PANI)g multi-layer film > SrLa0.4Fe11.6 O19/PANI particle > SrLa0.4Fe11.6O19 particle, (SrLa0 4Fen 6OI9/PSS/PANI)8 multi-layer film has higher saturation magnetization Mt and coercivity Hc as compared with the particle SrFe12O19 and SrFe12O19/ PANI composite materials. (SrLa0.4Fe11.6O19/PSS/PANI)g multi-layer film has fine electromagnetic performance.关键词
镧掺杂锶铁氧体/聚苯胺/静电自组装/电磁参数Key words
strontium ferrites doped with La/ polyaniline/electrostatic self-assembly/electromagnetic performance分类
信息技术与安全科学引用本文复制引用
翟青霞,黄英..镧掺杂锶铁氧体/聚苯胺纳米复合材料的制备及电磁性能[J].航空材料学报,2011,31(6):55-61,7.基金项目
航天科技创新基金(N9XT0001) （N9XT0001）
航天支撑技术基金(N8XW0002) （N8XW0002）
西北工业大学研究生创业种子基金资助项目(Z200971) （Z200971）
