Structural and magnetic properties of carbonyl FeNi nanometer particles

The phases, size, shape, aggregation pattern and chemical composition of carbonyl Fe-Ni ultrafine particles prepared by thermal decomposition of the mixture of Fe(CO) 5 and M(CO) 4 were investigated by X-ray diffraction and electron microscopy. It was found that the main phase was γ-(Fe-Ni), includi...

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Veröffentlicht in:	Nanostructured materials 1997-09, Vol.8 (6), p.703-709
Hauptverfasser:	Ge, Fuding, Chen, Limin, Ku, Wanjun, Zhu, Jing
Format:	Artikel
Sprache:	eng
Schlagworte:	Amorphous and nanocrystalline magnetic materials quasicrystals Amorphous and quasicrystalline magnetic materials Condensed matter: electronic structure, electrical, magnetic, and optical properties Cross-disciplinary physics: materials science rheology Exact sciences and technology Magnetic properties and materials Materials science Nanoscale materials and structures: fabrication and characterization Physics Studies of specific magnetic materials
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Zusammenfassung:	The phases, size, shape, aggregation pattern and chemical composition of carbonyl Fe-Ni ultrafine particles prepared by thermal decomposition of the mixture of Fe(CO) 5 and M(CO) 4 were investigated by X-ray diffraction and electron microscopy. It was found that the main phase was γ-(Fe-Ni), including a small amount of Fe 3O 4. The particle size was about 10 nm and the particles formed a fractal aggregation pattern whose dimension was 1.64. The composition varied from particle to particle, showing an average value of Fe 44Ni 56. The magnetic properties of the particles were examined with a vibrating sample magnetometer.
ISSN:	0965-9773 1872-9150
DOI:	10.1016/S0965-9773(97)00217-1