Sm{sub 2}Fe{sub 17}N{sub x} nanoflakes prepared by surfactant assisted cryomilling

Journal Article · Wed May 07 00:00:00 EDT 2014 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4861204· OSTI ID:22273918

Zhang, Songlin; Liu, Lidong; Du, Juan; Xia, Weixing; Zhang, Jian; Yan, Aru ^[1]; Guo, Zhaohui; Li, Wei ^[2]; Ping Liu, J. ^[3]

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1. Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Material Technology and Engineering, CAS, Ningbo 315201 (China)
2. Division of Functional Materials, Central Iron and Steel Research Institute, Beijing 100081 (China)
3. Department of Physics, University of Texas at Arlington, Arlington, Texas 76019 (United States)

Hard magnetic Sm{sub 2}Fe{sub 17}N{sub x} nanoflakes were prepared by surfactant assisted ball milling (SABM) at low temperature using liquid nitrogen cooling (surfactant assisted cryomilling). 2-methyl pentane was used as a milling medium and oleylamine as a surfactant. The morphology, structure, and magnetic properties of Sm{sub 2}Fe{sub 17}N{sub x} were investigated using scanning electron microscopy, X-ray diffraction, and vibrating sample magnetometer, respectively. By comparing Sm{sub 2}Fe{sub 17}N{sub x} nanoflakes produced by SABM at low temperature and at room temperature, we found that the former has many interesting features: more homogeneous morphology, smaller size, especially markedly increased remanent magnetization (M{sub r}), saturation magnetization (M{sub s}), and remanent magnetization ratio (M{sub r}/M{sub s}). These Sm{sub 2}Fe{sub 17}N{sub x} nanoflakes have great potential to be used for preparing high performance bonded permanent magnets.

• OSTI ID: 22273918
• Journal Information: Journal of Applied Physics, Vol. 115, Issue 17; Conference: 55. annual conference on magnetism and magnetic materials, Atlanta, GA (United States), 14-18 Nov 2010; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
77 NANOSCIENCE AND NANOTECHNOLOGY
COMPARATIVE EVALUATIONS
IRON NITRIDES
MAGNETIC PROPERTIES
MILLING
MORPHOLOGY
NANOSTRUCTURES
PENTANE
PERMANENT MAGNETS
SAMARIUM COMPOUNDS
SCANNING ELECTRON MICROSCOPY
SURFACTANTS
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0273-0400 K
VIBRATING SAMPLE MAGNETOMETERS
X-RAY DIFFRACTION