Effects of Ga substitution for Fe on the structure and magnetic properties of Nd_8.4Fe_87.1-xGa_xB_4.5 (x = 0–2.2) alloys prepared by mechanical alloying

Authors

• B.Z. Cui, Institute of Metal Research, Academia Sinica, Shenyang, 110015, People’s Republic of China
• X.K. Sun, Institute of Metal Research, Academia Sinica, Shenyang, 110015, People’s Republic of China
• W. Liu, Institute of Metal Research, Academia Sinica, Shenyang, 110015, People’s Republic of China
• Z.D. Zhang, Institute of Metal Research, Academia Sinica, Shenyang, 110015, People’s Republic of China
• D.Y. Geng, Institute of Metal Research, Academia Sinica, Shenyang, 110015, People’s Republic of China
• X.G. Zhao, Institute of Metal Research, Academia Sinica, Shenyang, 110015, People’s Republic of China
• J. Ping Liu, University of Nebraska-LincolnFollow
• David J. Sellmyer, University of Nebraska-LincolnFollow

Document Type

Article

Date of this Version

5-1-2000

Comments

Published by American Institute of Physics. J. Appl. Phys. 87, 5335 (2000). ©2000 American Institute of Physics. Permission to use. http://jap.aip.org/jap/.

Abstract

The effects of a partial substitution of Ga for Fe on the structure and magnetic properties of mechanically alloyed Nd_8.4Fe_87.1B_4.5 were studied. With increasing Ga content, the magnetic properties of the nanocomposite magnets first improve, reach maxima at 1.1 at.% Ga, and then degrade. The addition of Ga helps to control the morphology, especially the grain sizes of both α -Fe and Nd₂Fe₁₄B.