重稀土Lu掺杂增强Sm2Co17永磁体的矫顽力机理研究

来源 :第十六届全国磁学和磁性材料会议暨第十七届全国微波磁学会议 | 被引量 : 0次 | 上传用户:chen95127
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稀土NdFeB永磁材料的发展开创了高性能永磁材料的新篇章,但在高温应用领域,其矫顽力随温度升高的衰减很快.目前人们主要通过添加重稀土元素(如Dy、Te 等)来提高磁体的矫顽力,但最终仍然无法解决NdFeB 磁体的矫顽力温度系数高的问题.S m2Co17 烧结永磁体自问世以来,凭其具有高的居里温度(820℃)和强抗氧化性,特别是高矫顽力等性能,得到广泛的应用,在国防工业、尖端技术、航空航天等领域具有不可替代的地位[1].掺杂技术是提高Sm2Co17 烧结永磁体整体磁性能的重要手段之一.但至今关于重稀土Lu 元素掺杂制备高性能Sm2Co17 烧结永磁体研究报道较少.
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