Study on Two-Phase Nanocrystalline Nd2Fe14B/α-Fe Bonded Magnet
Two-phase nanocrystalline ribbons were prepared by melt-spun and subsequent heat treatment. Excellent magnetic properties of the bonded magnet were achieved as follows: Br = 0.67 T, JHc = 664.3 kA·m-1, (BH) max = 75.0 kJ·m-3. The mean grain size of the ribbons heat-treated at 710 °C/ 4 min is about 50 nm. After heat-treated the ribbons at 750 °C/ 4 min, the mean grain size is about 100 nm.
Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie
J. Ni et al., "Study on Two-Phase Nanocrystalline Nd2Fe14B/α-Fe Bonded Magnet", Materials Science Forum, Vols. 475-479, pp. 2165-2168, 2005