Effect of cooling rate and concentration of Ga on the microstructure and magnetic property of NdFeCoGaB ribbons

The effects of the cooling rate (speeds of wheel surface v = 15 – 30 m / s in steps of 5 m/s) and composition 0 ⩽ x ⩽ 1 on the magnetic properties and microstructure of Nd 12Fe 71.4− x Co 10B 6.6Ga x ribbons were studied. The coercivity H c increases from 12 to 17 kOe when x increases from 0 to 1. T...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2006-09, Vol.304 (1), p.e249-e251
Main Authors: Khoa, T.V., Sun, D.S., Ha, N.D., Hong, S.M., Jin, H.M., Kim, Y.B., Kim, G.W., Duong, N.P., Tu, L.T., Lee, K.E., Hien, T.D., Tai, L.T., Kim, C.G., Kim, C.O.
Format: Article
Language:English
Subjects:
Cooling rate
Melt spinning
NdFeCoGaB ribbons
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Summary:The effects of the cooling rate (speeds of wheel surface v = 15 – 30 m / s in steps of 5 m/s) and composition 0 ⩽ x ⩽ 1 on the magnetic properties and microstructure of Nd 12Fe 71.4− x Co 10B 6.6Ga x ribbons were studied. The coercivity H c increases from 12 to 17 kOe when x increases from 0 to 1. The best magnetic properties of the ribbon after annealing were H c = 17 kOe , M r / M s = 0.8 , (BH) max=18 MGOe with optimum cooper wheel speed of 25 m/s and x = 0.6 .
ISSN:0304-8853
DOI:10.1016/j.jmmm.2006.01.153