Journal
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volume 496, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jmmm.2019.165939
Keywords
Sm(Co, Fe, Cu, Zr)(z); Melt spinning; 1:5H phase; Nanotwins
Funding
- National Natural Science Foundation of China [51471016, 51771010]
- Natural Science Foundation of Beijing [2151002]
- BRICS STI Framework Program [51761145026]
Ask authors/readers for more resources
The formation of 1:5H phase in Sm (Co, Fe, Cu, Zr)(z) melt-spun ribbons with high iron content has been investigated. The precipitation of the Zr-rich 2:7R phase is restrained in the boundaries of 2:17H grains for the asspun ribbon. After aging treatment, only 2:17R phase with planar 1:3R phase occurs, which results in a lower coercivity of around 1.03kOe. After solid solution treatment of the as-spun ribbon, 2:17R phase with lower ordered state together with minor 2:17H phase is obtained. In addition, the ribbon after solid solution consists of large numbers of 2:17R nanotwins. When different twin variants with various stacking sequence encounter each other, those areas which are rich in Sm will act as the nucleation centers of 1:5H phase during aging. The pinning strength for the magnetic domain walls is enhanced, thus leading to a much higher coercivity of 6.16 kOe. These results may provide guidance for high performance 2:17R SmCo permanent magnets with high iron content.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available