| Autor: |
Huang, M. Q., Turqut, Z., Chu, S. Y., Horwath, J. C., Fingers, R. T., Smith, B. R., Chen, Z. M., Ma, B. M. |
| Předmět: |
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| Zdroj: |
Journal of Applied Physics; 5/15/2003, Vol. 93 Issue 10, p7972, 3p, 1 Black and White Photograph, 1 Chart, 5 Graphs |
| Abstrakt: |
Alloys with nominal compositions of Sm(Co[SUB1-x]Zr[SUBx])[SUBy] (x=0.03- 0.05, y=12- 15) were synthesized by arc melting and characterized in the temperature range of 10-1473 K and with a magnetic field up to 5 T. Near-single-phase materials with Th[SUB2]Ni[SUB17] structure were formed in the as-cast alloys with x = 0.05. Similar to Ti, Zr also stabilizes the Th[SUB2]Ni[SUB17] structure. Hard magnetic properties with T[SUBc]∼ 1142- 1179 K, M[SUBs] ∼ 110- 123 emu/g, and H[SUBa]∼ 63- 86 kOe at 300 K have been observed. An alloy with a nominal composition of Sm(Co[SUB0.75]Fe[SUB0.1]Zr[SUB0.05]Cu[SUB0.08]Ga[SUB0.01]B[SUB0.01])[SUB1 2] (as also prepared by melt spinning. The melt spun materials were nanostructured in nature and magnetically hard in the as-spun states. H[SUBci] ∼ 10 kOe, B[SUBs] ∼ 9.5 kG, and H[SUBci] ∼ 27 kOe, B[SUBs] ∼ 9.8 kG were obtained at 300 and 10 K, respectively. The effects of the heat treatment conditions on magnetic properties of both alloys and ribbon will be also discussed. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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