High coercivity in nanocrystalline [Nd.sub.25][Fe.sub.40][Co.sub.20][Al.sub.10][B.sub.5] prepared by out-of-equilibrium techniques

Authors :: Ky, V.H.
Bessais, L.
Djega-Mariadassou, C.
Phuc, N.X.
Source :: Journal of Applied Physics. May 15, 2009, Vol. 105 Issue 10, 103905-1-103905-6
Publication Year :: 2009
Abstract: The synthesis of [Nd.sub.25][Fe.sub.40][Co.sub.20][Al.sub.10][B.sub.5] by high-energy milling and melt-spinning techniques followed by subsequently annealed temperature range from 400 to 1100 degree Celsius for 20 min, is described. The findings from x-ray diffraction combined with high-resolution transmission microscopy for the annealed samples showed the presence of ferromagnetic [Nd.sub.2][(Fe,Co,Al).sub.14]B crystallites coexisting with antiferromagnetic [Nd.sub.6][(Fe,Co,Al).sub.14] ones, among an amorphous matrix.

Subjects :: Aluminum alloys -- Magnetic properties
Aluminum alloys -- Thermal properties
Aluminum alloys -- Structure
Cobalt alloys -- Magnetic properties
Cobalt alloys -- Thermal properties
Cobalt alloys -- Structure
Ferromagnetism -- Analysis
Iron alloys -- Magnetic properties
Iron alloys -- Structure
Iron alloys -- Thermal properties
Neodymium -- Thermal properties
Neodymium -- Magnetic properties
Iron-aluminum alloys -- Magnetic properties
Iron-aluminum alloys -- Thermal properties
Iron-aluminum alloys -- Structure
Physics

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