Title :
Magnetic properties of melt spun NdFe10Cr2-Nd 0.67B0.33 pseudobinary alloys
Author :
Huang, S.H. ; Chin, T.S. ; Chen, Y.S. ; Chen, S.K. ; Lin, C.H. ; Wu, C.D. ; Chang, W.C.
Author_Institution :
Dept. of Mater. Sci. & Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan
fDate :
9/1/1990 12:00:00 AM
Abstract :
The coercivity of the melt-spun pseudobinary (NdFe10Cr 2)1-x (Nd2B)x alloys, in which Nd2B represents a composition of Nd0.67B0.33, was systematically studied. It was found that significant coercivities are possible with optimal additions of the Nd-B composition at x=0.5-0.7. The as-spun (substrate velocity=10 m/s) coercivity increased from 0.1 kOe at x=0.0 to maxima of 7.0 and 7.5 kOe at x=0.5 and 0.7, due to the Nd2 Fe14B and a new Fe-Nd phase, respectively, as evidenced from thermomagnetic analysis and X-ray diffraction. Annealing the overquenched amorphous x=0.7 alloy led to the crystallization of the Nd2Fe14B phase, and a coercivity of 8.5 kOe was obtained
Keywords :
boron alloys; chromium alloys; coercive force; ferromagnetic properties of substances; iron alloys; neodymium alloys; NdFe10Cr2-Nd0.67B0.33 pseudobinary alloys; X-ray diffraction; coercivity; crystallization; melt-spun; thermomagnetic analysis; Argon; Atmosphere; Chromium alloys; Coercive force; Iron alloys; Magnetic properties; Magnetization; Neodymium; Silicon alloys; Temperature;
Journal_Title :
Magnetics, IEEE Transactions on
