| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1624671 | Journal of Alloys and Compounds | 2008 | 4 Pages |
Abstract
Effect of additives on the magnetic properties, phase evolution, and microstructure of SmCo6.9Hf0.1M0.1 (M = B, C, Nb, Si, and Ti) ribbons by melt spinning technique under sufficient supercooling condition have been investigated. Among those additives, C is the most effective element in refining the grain size of SmCo6.9Hf0.1M0.1 ribbons, from 100-400 nm for ternary ribbons to 30-100 nm for C-containing ribbons. Besides, C addition also induces extremely fine fcc-Co grains (5-10 nm) in the matrix, resulting in the stronger intergranular exchange coupling effect and the improved magnetic properties. The optimal magnetic properties of Br = 6.9 kG, iHc = 11.8 kOe and (BH)max = 10 MGOe could be achieved for SmCo6.8Hf0.1C0.1 nanocomposite ribbons.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
H.W. Chang, S.T. Huang, C.W. Chang, C.H. Chiu, I.W. Chen, W.C. Chang, A.C. Sun, Y.D. Yao,