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溶液法和反膠束法制備Fe-B顆粒的結(jié)構(gòu)和磁性能
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國(guó)家自然科學(xué)基金 (50771058); 國(guó)家杰出青年基金 (50525101)


Microstructure and Magnetic Property of Fe-B Nanoparticles Prepared by Solution and Reverse Micelle Methods
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    摘要:

    采用溶液法和反膠束法合成Fe-B磁性納米顆粒。通過(guò)XRD、TEM、ICP、VSM等手段，依次對(duì)Fe-B納米顆粒的結(jié)構(gòu)、形貌、成分、磁性能進(jìn)行表征，并針對(duì)兩種方法所得結(jié)果進(jìn)行對(duì)比分析。采用溶液法制備的Fe-B納米顆粒為晶體結(jié)構(gòu)，顆粒尺寸在20~70 nm；反膠束法合成的Fe-B磁性納米顆粒一般為非晶結(jié)構(gòu)，顆粒尺寸細(xì)小(約5 nm)。ICP顆粒成分分析結(jié)果表明，兩種方法制備的Fe-B顆粒中B含量不同，溶液法制備的Fe-B顆粒中B含量約為17.8 at%；而反膠束法制備的Fe-B顆粒，其B含量較高，達(dá)34.9 at%。上述結(jié)構(gòu)、顆粒尺寸和B含量的差異，導(dǎo)致了兩種方法合成的Fe-B顆粒在磁性能方面的差別

    Abstract:

    Fe-B nanoparticles were synthesized by using solution and reverse micelle methods. The structures, the B contents and the magnetic properties of the particles have been characterized by XRD, TEM, ICP, VSM, etc. It is found that the difference in magnetic properties of Fe-B nanoparticles fabricated by the two methods is mainly caused by the structure, the B content and the particle size. The Fe-B particles fabricated by solution method are crystalline with a size range of 20~70 nm, and the B content is about 17.8 at%; and the Fe-B particles prepared by reverse micelle method are usually non-crystalline with a size much smaller (about 5 nm), the B content is about 34.9 at%.

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李 婷,唐瑞鶴,于榮海.溶液法和反膠束法制備Fe-B顆粒的結(jié)構(gòu)和磁性能[J].稀有金屬材料與工程,2009,38(9):1659~1662.[Li Ting, Tang Ruihe, Yu Ronghai. Microstructure and Magnetic Property of Fe-B Nanoparticles Prepared by Solution and Reverse Micelle Methods[J]. Rare Metal Materials and Engineering,2009,38(9):1659~1662.]
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  • 收稿日期:2008-09-12
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