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溶液法和反胶束法制备Fe-B颗粒的结构和磁性能
  • 期刊名称：稀有金属材料与工程38,1659（2009）
  • 时间：0
  • 分类：TM271[电气工程—电工理论与新技术;一般工业技术—材料科学与工程]
  • 作者机构：[1]清华大学教育部先进材料重点实验室,北京100084
  • 相关基金：国家自然科学基金（50771058）;国家杰出青年基金（50525101）
  • 相关项目：金属磁性材料
关键词： 溶液法, 反胶束法, Fe-B纳米颗粒, solution method, reverse micelle method, Fe-B nanoparticles
中文摘要：

采用溶液法和反胶束法合成Fe-B磁性纳米颗粒。通过XRD、TEM、ICP、VSM等手段，依次对Fe—B纳米颗粒的结构、形貌、成分、磁性能进行表征，并针对两种方法所得结果进行对比分析。采用溶液法制备的Fe—B纳米颗粒为晶体结构，颗粒尺寸在20～70nm；反胶束法合成的Fe—B磁性纳米颗粒一般为非晶结构，颗粒尺寸细小（约5nm）。ICP颗粒成分分析结果表明，两种方法制各的Fe-B颗粒中B含量不同，溶液法制备的Fe—B颗粒中B含量约为17．8at％而反胶束法制备的Fe-B颗粒，其B含量较高，达34．9at％。上述结构、颗粒尺寸和B含量的差异，导致了两种方法合成的Fe—B颗粒在磁性能方面的差别。

英文摘要：

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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