Phase formation and magnetic properties of SmCo5+x alloys with the TbCu7-type structure
Phase formation and magnetic properties of SmCo5+x alloys with the TbCu7-type structure
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DOI：
10.1016/j.jmmm.2004.01.048
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发表时间：
2004-08
影响因子：
2.7
通讯作者：
S. Aich;J. Shield
中科院分区：
文献类型：
--
作者：
S. Aich;J. Shield
The metastable TbCu7-type structure has been formed over a range of compositions ranging from SmCo5.67to SmCo8. The stabilization was attributed to the addition of Nb combined with rapid solidification processing. As a result, the concentration of transition metal dumbbells varied, while the placement in the structure remained random. The coercivity varied linearly with composition and was highest in Sm-rich compositions (17.5 kOe ) and decreased to ∼3 kOe as Sm content decreased. The variation in coercivity was attributed to a decrease in magnetocrystalline anisotropy, with estimations predicting that the anisotropy varies linearly with composition between values reported for the compounds SmCo5and Sm2Co17.
