Table 1 The intrinsic coercivity, Hci, the remanence, Br, the maximum product, (BH)max, and the average grain size of wheel surface and free surface of (Nd0.8Pr0.2)2.2Fe14−xCoxB (x = 0, 1.75, 2, 2.25) melt-spun ribbons.

From: The effects of Co on the enhancement of magnetic properties by modifying the intergranular phase in Nd-Fe-B alloys

Co content

H c i (kA/m)

B r (T)

(BH) max (kJ/m 3 )

Average grain size (nm)

wheel surface

free surface

x = 0

1200

0.80

109

43 ± 4

71 ± 2

x = 1.75

1172

0.81

112

56 ± 1

74 ± 2

x = 2

896

0.91

141

25 ± 1

28 ± 1

x = 2.25

1280

0.83

113

58 ± 1

71 ± 2

Back to article page