Microstructure and magnetic properties of iron-based rare-earth magnets

1986 ◽  
Vol 22 (6) ◽  
pp. 1845-1848 ◽  
Author(s):  
G. Hadjipanayis ◽  
Y. Tao ◽  
K. Lawless
Keyword(s):  
Magnetic Properties ◽  
Rare Earth ◽  
Iron Based ◽  
Microstructure And Magnetic Properties

Microstructure and Magnetic Properties of RE2.28Fe13.58B1.14 Alloys

2016 ◽  
Vol 848 ◽  
pp. 709-714 ◽  
Author(s):  
Gang Fu ◽  
Jiang Wang ◽  
Mao Hua Rong ◽  
Guang Hui Rao ◽  
Huai Ying Zhou
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Rare Earth ◽  
Single Phase ◽  
Permanent Magnets ◽  
Industrial Applications ◽  
Arc Melting ◽  
Light Rare Earth Elements ◽  
Curie Temperatures ◽  
Microstructure And Magnetic Properties

The rare-earth (RE) permanent magnets based on Nd2Fe14B with excellent magnetic properties have been widely used in industrial applications. In this work, the crystal structure, microstructure and magnetic properties of Nd2.28Fe13.58B1.14, Ce2.28Fe13.58B1.14 and Pr2.28Fe13.58B1.14 alloys prepared by arc-melting were investigated. The results show that all alloys are single phase with tetragonal Nd2Fe14B-type (space group P42/mnm). The Curie temperatures (Tc) of RE2.28Fe13.58B1.14 (RE=Nd, Ce, Pr) alloys are 583 K, 423 K and 557 K, respectively. On the other hand, the coercivities of Nd2.28Fe13.58B1.14 and Pr2.28Fe13.58B1.14 alloys are about 1.05 T and 1.23 T, respectively, while that of Ce2.28Fe13.58B1.14 alloy is only about 0.25 T due to the poor squareness of hysteresis loop. Meanwhile, the saturation magnetizations of Nd2.28Fe13.58B1.14 and Pr2.28Fe13.58B1.14 alloys are about 135 emu/g and 113 emu/g, respectively, while that of Ce2.28Fe13.58B1.14 alloy is about 97 emu/g. It was indicated that the Curie temperatures and magnetic properties of RE2.28Fe13.58B1.14 alloys with the same crystal structure are dependent on light rare earth elements.

Effect of rare earth content on microstructure and magnetic properties of SmCo and NdFeB thin films

2002 ◽  
Vol 91 (10) ◽  
pp. 8180 ◽  
Author(s):  
V. Neu ◽  
U. Hannemann ◽  
S. Fähler ◽  
B. Holzapfel ◽  
L. Schultz
Keyword(s):  
Thin Films ◽  
Magnetic Properties ◽  
Rare Earth ◽  
Rare Earth Content ◽  
Microstructure And Magnetic Properties

Microstructure and Magnetic Properties of Metastable RFeO3 (R: Rare-earth element) Formed from Undercooled Melt

2012 ◽  
Vol 96 (3) ◽  
pp. 995-1002 ◽  
Author(s):  
Malahalli Vijaya Kumar ◽  
Kazuhiko Kuribayashi ◽  
Jianding Yu ◽  
Junpei.T. Okada ◽  
Takehiko Ishikawa
Keyword(s):  
Magnetic Properties ◽  
Rare Earth ◽  
Rare Earth Element ◽  
Earth Element ◽  
Undercooled Melt ◽  
Microstructure And Magnetic Properties

Studies of microstructure and magnetic properties in sintered mixed rare earth (MRE) -Fe-B magnets (MRE = Nd+La+Dy)

2011 ◽  
Vol 109 (7) ◽  
pp. 07A704 ◽  
Author(s):  
W. Tang ◽  
Y. Q. Wu ◽  
K. W. Dennis ◽  
N. T. Oster ◽  
M. J. Kramer ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Rare Earth ◽  
Microstructure And Magnetic Properties

scholarly journals Effects of rare earth content on microstructure and magnetic properties of (Nd,Dy)-(Fe,Al)-B alloys

2008 ◽  
Vol 57 (6) ◽  
pp. 3823
Author(s):  
Li Xiu-Mei ◽  
Liu Tao ◽  
Guo Zhao-Hui ◽  
Zhu Ming-Gang ◽  
Li Wei
Keyword(s):  
Magnetic Properties ◽  
Rare Earth ◽  
Rare Earth Content ◽  
Microstructure And Magnetic Properties

scholarly journals Enhanced Soft Magnetic Properties of Iron-Based Powder Cores with Co-Existence of Fe3O4–MnZnFe2O4 Nanoparticles

Metals ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 702 ◽  
Author(s):  
Yuye Xie ◽  
Pengfei Yan ◽  
Biao Yan
Keyword(s):  
Magnetic Properties ◽  
Core Loss ◽  
Magnetic Composite ◽  
Powder Metallurgy Method ◽  
Soft Magnetic Properties ◽  
Soft Magnetic ◽  
Soft Magnetic Composite ◽  
Insulation Coating ◽  
Iron Based ◽  
Microstructure And Magnetic Properties

An iron-based soft magnetic composite with Fe3O4-MnZnFe2O4 insulation coating has been prepared by powder metallurgy method. This work investigated the microstructure and magnetic properties of Fe/Fe3O4-MnZnFe2O4 powder cores. Scanning electron microscopy (SEM) coupled with an energy dispersive spectrometry (EDS) analysis indicated that the Fe3O4 and MnZnFe2O4 nanoparticles were uniformly coated on the surface of Fe powders. The co-existence of Fe3O4 and MnZnFe2O4 contributes to the preferable distribution of nano-sized insulation powders and excellent soft magnetic properties of soft magnetic composite (SMC) with high saturation magnetization Ms (215 A·m2/kg), low core loss (178.7 W/kg measured at 100 kHz, 50 mT), and high effective amplitude permeability of 114 (measured at 100 kHz). Overall, this work has great potential for realizing low core loss and outstanding soft magnetic properties of Fe-based powder cores.

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