徐成福,傅森杨,马冬冬,顾正飞,马垒,阳永泉,高新强,刘荣进

• 1:桂林航天工业学院机电工程学院广西特种工程装备与控制重点实验室
• 2:桂林电子科技大学广西电子信息材料构效关系重点实验室
• 3:桂林理工大学材料科学与工程学院
• 4:中国科学院赣江创新研究院

摘要(Abstract)：

研究了放电等离子烧结(SPS)工艺和退火温度对双主相Sm_2Co_(17)-Ce_2Co_(17)复合永磁体微观组织的影响。结果表明：制备双主相Sm_2Co_(17)-Ce_2Co_(17)复合永磁体的最佳SPS工艺为：烧结温度750℃、压强64 MPa、烧结时间10 min,这样有利于减少稀土元素之间的扩散。退火可使烧结后磁体中存在的非晶相晶化。退火温度越高，双主相磁体中的稀土元素之间越容易相互扩散，Ce原子易扩散到Sm_2Co_(17)相中取代Sm原子，而Sm原子扩散到Ce_2Co_(17)相中取代Ce原子的机会就相对较少些，且在Sm_2Co_(17)相与Ce_2Co_(17)相的边界处形成一个过渡的富稀土区。

关键词(KeyWords)： 双主相Sm_2Co_(17)-Ce_2Co_(17)复合永磁体;放电等离子烧结(SPS);退火温度;微观组织

Abstract:

Keywords:

基金项目(Foundation): 广西自然科学基金(2021GXNSFAA220081);; 国家自然科学基金(52361004,52171054);; 广西信息材料重点实验室开放研究基金(221021-K)

作者(Author): 徐成福,傅森杨,马冬冬,顾正飞,马垒,阳永泉,高新强,刘荣进

DOI: 10.13289/j.issn.1009-6264.2023-0396

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