Iron/Graphite Core-Shell Structured Nanoparticles Prepared by Annealing of Nanopowder
We present magnetic and morphological characterization of iron- and iron-carbide- based nanopowder obtained by the laser synthesis from sensitized gas phase mixture containing acetylene and iron pentacarbonyl vapors. The analysis was performed on the as-prepared material and the annealed material. The results of TEM, XRD, Mössbauer and magnetic measurements are reported. Phase transformations taking place during annealing of the nanopowder when core-shell nanoparticles appear are discussed.
B. David et al., "Iron/Graphite Core-Shell Structured Nanoparticles Prepared by Annealing of Nanopowder", Materials Science Forum, Vols. 480-481, pp. 469-476, 2005