Development Of Magnetic Fe-C Nanocomposites Obtained Via The Laser Pyrolysis: Structural And Disaggregation Properties

Journal Article · Wed Oct 06 00:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3505074· OSTI ID:21454837

Morjan, Ion; Alexandrescu, R; Dumitrache, F; Fleaca, C; Birjega, R; Soare, I; Luculescu, C -R ^[1]; Prodan, V ^[2]; Kuncser, V; Filoti, G ^[3]; Xu, H; Wang, D ^[4]

---

1. National Institute for Lasers, Plasma and Radiation Physics, 111 Atomistilor, MG-36, 077125 Bucharest (Romania)
2. Ovidius University of Constanta, 124 Mamaia, Constanta (Romania)
3. National Institute of Materials Physics, 105 bis Atomistilor, MG-07, 077125 Bucharest (Romania)
4. Max Planck Institute of Colloids and Interfaces, Dept. of Interfaces, D-14424 Potsdam (Germany)

Fe-C) nanoparticles have been successfully synthesized using the laser pyrolysis method and variable nozzle geometries. At large nozzle diameters, XRD and SAED analysis clearly identified distinct {alpha}-Fe and Fe{sub 3}C phases. TEM and HRTEM indicated that these Fe-based nanoparticles have an average grain size of 3.5-10.2 nm. Temperature dependent Moessbauer spectra further confirm their distinct nanophases. By using a multi-step reduction procedure, Fe-C powders can be disaggregated into stable, water soluble nanoparticles.

• OSTI ID: 21454837
• Journal Information: AIP Conference Proceedings, Vol. 1275, Issue 1; Conference: Bonsai project symposium: Breakthroughts in nanoparticles for bio-imaging, Frascati (Italy), 8-9 Apr 2010; Other Information: DOI: 10.1063/1.3505074; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
COMPOSITE MATERIALS
ELECTRON DIFFRACTION
GRAIN SIZE
IRON CARBIDES
IRON-ALPHA
LASER RADIATION
MOESSBAUER EFFECT
NANOSTRUCTURES
PARTICLES
POWDERS
PYROLYSIS
STRUCTURAL CHEMICAL ANALYSIS
TEMPERATURE DEPENDENCE
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION
CARBIDES
CARBON COMPOUNDS
CHEMICAL REACTIONS
COHERENT SCATTERING
DECOMPOSITION
DIFFRACTION
ELECTROMAGNETIC RADIATION
ELECTRON MICROSCOPY
ELEMENTS
IRON
IRON COMPOUNDS
MATERIALS
METALS
MICROSCOPY
MICROSTRUCTURE
RADIATIONS
SCATTERING
SIZE
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS