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Indexed by:期刊论文

Date of Publication:2009-12-01

Journal:2nd International Conference on Nanoscale Materials and Engineering

Included Journals:SCIE、EI、CPCI-S、PubMed、Scopus

Volume:9

Issue:12

Page Number:7383-7387

ISSN No.:1533-4880

Key Words:Nanoparticles Precursor; Nitridation; Iron-Nitrides

Abstract:Nitridation of Fe nanoparticle precursor was performed in a NH3 atmosphere at the temperatures of 473 K and 673 K for one hour. Fe nanoparticles precursor had a typical spherical shape with iron oxides shell and alpha-Fe core, which was obtained by an arc-discharge method. Up to date, the nitriding temperature of 473 K in present work was the lowest by thermal ammonolysis method because of the characteristics of the nano-sized particles. The resultant product after nitridation was a mixture of iron-nitrides (gamma'-Fe4N and epsilon-Fe3N) nanoparticles with homogeneous dispersion. The nitriding mechanism, oxidizing behaviors and magnetic properties of iron-nitride nanoparticles were measured and discussed.