稀土永磁纳米材料的控制合成及其磁学性能

发布时间：2018-03-01 21:23

本文关键词： 稀土永磁纳米材料化学合成物理制备磁学性能　出处：《稀有金属》2017年05期 　论文类型：期刊论文

【摘要】：随着现代器件小型化和集约化的要求,对传统稀土永磁材料提出了更高的要求,包括高磁能积、高饱和磁感应强度等,而纳米技术的发展为实现该要求提供了途径。近年来,交换耦合效应为新一代综合磁性能优异的稀土永磁纳米材料的制备提供了新的思路。主要介绍了稀土永磁纳米材料的合成方法,主要包括液相化学法和其他一些常用的制备方法,比较了不同材料的磁学性能,总结了稀土永磁材料的最新进展和存在的挑战,同时展望了其未来的发展方向。
[Abstract]:With the requirement of miniaturization and intensification of modern devices, higher requirements have been put forward for the traditional rare earth permanent magnetic materials, including high magnetic energy product and high saturation magnetic induction intensity. The development of nanotechnology has provided a way to achieve this requirement in recent years. The exchange coupling effect provides a new idea for the preparation of the new generation of rare earth permanent magnetic nanomaterials with excellent magnetic properties. The synthesis methods of rare earth permanent magnetic nanomaterials are introduced. This paper mainly includes liquid-phase chemical method and other commonly used preparation methods, compares the magnetic properties of different materials, summarizes the latest progress and existing challenges of rare earth permanent magnetic materials, and looks forward to the future development direction of rare earth permanent magnetic materials.
【作者单位】：北京大学工学院;
【基金】：国家自然科学基金项目(51590882,51631001)资助
【分类号】：TB383.1;TM273

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