Title :
Properties of magnetically soft amorphous Nd-Fe-B nanoparticles synthesized by chemical reduction
Author :
Turgut, Z. ; Hammond, V.H. ; Huang, M.Q. ; Horwath, J. ; Fingers, R.T.
Author_Institution :
UES Inc., Dayton, OH, USA
fDate :
March 30 2003-April 3 2003
Abstract :
In this paper, FeNdB nanoparticles were synthesized through the chemical reduction of aqueous metal salt solutions. X-ray diffraction scans performed on a Rikagu Rotaflex Ru-200B diffractometer revealed that the product powders are amorphous. A Leica 360 field emission scanning electron microscopy (SEM) analysis indicated that average particle sizes for these amorphous powders were around 100 nm. Room temperature magnetic measurements on a Lake Shore Model 735 vibrating sample magnetometer (VSM) showed that as produced amorphous powders were ferromagnetic with an average saturation magnetization of 30 emu/g and a coercivity of 20 Oe.
Keywords :
X-ray diffraction; amorphous magnetic materials; boron alloys; coercive force; ferromagnetic materials; field emission electron microscopy; iron alloys; magnetic particles; magnetisation; nanoparticles; neodymium alloys; particle size; powder metallurgy; reduction (chemical); scanning electron microscopy; soft magnetic materials; 100 nm; 293 to 298 K; NdFeB; SEM; X-ray diffraction scans; amorphous powders; aqueous metal salt solutions; chemical reduction; coercivity; diffractometer; ferromagnetic powders; field emission scanning electron microscopy; particle size; room temperature magnetic measurement; saturation magnetization; soft amorphous Nd-Fe-B nanoparticles; vibrating sample magnetometer; Amorphous magnetic materials; Amorphous materials; Chemicals; Magnetic properties; Nanoparticles; Powders; Saturation magnetization; Scanning electron microscopy; Soft magnetic materials; X-ray diffraction;
Conference_Titel :
Magnetics Conference, 2003. INTERMAG 2003. IEEE International
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-7647-1
DOI :
10.1109/INTMAG.2003.1230756
