Bulk SmCo3 nanocrystalline magnets with magnetic anisotropy
Bulk SmCo3 nanocrystalline magnets with magnetic anisotropy
复制标题
具有磁各向异性的块状 SmCo3 纳米晶磁体
DOI:
10.1016/j.jmmm.2020.166552
复制
发表时间:
2020-05
影响因子:
2.7
通讯作者:
Xiaohong Li
中科院分区:
文献类型:
--
作者:
Tiancong Li;Bo Jiang;Li Lou;Yingxin Hua;Jieqiong Gao;Jinyi Wang;Xiaohong Li
In bulk SmCo3nanocrystalline materials with small grain sizes of 10–20 nm, it is a challenge to realize a strong crystal texture that is crucial for them as high-performance permanent magnets. Here we fabricated an anisotropic bulk SmCo3nanocrystalline magnet with a strong (00l) texture combined with a small grain size of 10–20 nm using a high-pressure thermal compression (HPTC) approach from amorphous precursors. This magnet had an obvious magnetic anisotropy withMr///Mr⊥= 1.53 and a maximum energy product of 4.2 MGOe (33.8 kJ/m3) which were obviously higher than thoseMr///Mr⊥= 1.01 and 1.9 MGOe (15.1 kJ/m3) of the isotropic magnets prepared using the same precursors. These anisotropic magnets showed a coercivity temperature coefficient ofβ= –0.31 %/°C and a remanence temperature coefficient ofα= –0.14 %/°C. The deformation and annealing temperatures played important roles on the microstructures and magnetic properties of these anisotropic SmCo3nanocrystalline magnets. These findings make an important step toward the fabrication of oriented bulk SmCo3magnets for practical applications.
登录
查看更多内容
影响因子:
6.7
作者:
Seyring, Martin;Song, Xiaoyan;Rettenmayr, Markus
通讯作者:
Rettenmayr, Markus
影响因子:
2.1
作者:
C. Skelland;T. Ostler;S. Westmoreland;R. Evans;R. Chantrell;M. Yano;T. Shoji;A. Manabe;A. Kato;M. Ito;M. Winklhofer;G. Zimányi;J. Fischbacher;T. Schrefl;G. Hrkac
通讯作者:
C. Skelland;T. Ostler;S. Westmoreland;R. Evans;R. Chantrell;M. Yano;T. Shoji;A. Manabe;A. Kato;M. Ito;M. Winklhofer;G. Zimányi;J. Fischbacher;T. Schrefl;G. Hrkac
影响因子:
4
作者:
Song, Xiaoyan;Lu, Ni;uan;Zhang, Zhexu;Seyring, Martin;Zhang, Jiuxing;Rettenmayr, Markus;Xu, Wenwu
通讯作者:
Xu, Wenwu
影响因子:
4
作者:
X. Zhang;Jielong Zhang;Wenzhao Wang;W. Yu;Junduo Zhao;Yingqiang Xu
通讯作者:
X. Zhang;Jielong Zhang;Wenzhao Wang;W. Yu;Junduo Zhao;Yingqiang Xu
影响因子:
8.8
作者:
Chengbao Jiang;Shizhong An
通讯作者:
Shizhong An