| Autor: |
Kildishev, Alexander V., Nyenhuis, John A. |
| Předmět: |
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| Zdroj: |
Journal of Applied Physics; 5/15/2002 Part 1, 2 & 3, Vol. 91 Issue 10, p8721, 3p, 1 Graph |
| Abstrakt: |
The magnetic and structural properties of as-spun and nanocrystalline (Co[sub 0.95]Fe[sub 0.05])[sub 89-x]Zr[sub 7]B[sub 4]Cu[sub x] alloy ribbons (where x = 0 and 1) are reported. As-spun ribbons were synthesized by melt spinning with subsequent heat treatments used to stabilize the nanocrystalline microstructure. By differential thermal analysis, the onset of primary crystallization was found to occur at 475 and 481 °C for the alloys with and without Cu, respectively. The phase produced by primary crystallization was identified as a face-centered cubic-(Fe,Co) having grains ranging in size from 5 to 17 nm. The nanoscale morphology of the materials provides low hysteretic losses, as evident by the 0.26 Oe coercive field for a sample annealed at 550 °C for 1 h. In addition, the crystalline phase provides a magnetization of 1.57 T. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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