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

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.
Authors:
; ; ; ; ;  [1] ;  [2] ; ;  [3] ;  [4]
  1. Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Material Technology and Engineering, CAS, Ningbo 315201 (China)
  2. (China)
  3. Division of Functional Materials, Central Iron and Steel Research Institute, Beijing 100081 (China)
  4. Department of Physics, University of Texas at Arlington, Arlington, Texas 76019 (United States)
Publication Date:
OSTI Identifier:
22273918
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 115; Journal 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)
Country of Publication:
United States
Language:
English
Subject:
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