Release Time:2019-03-11  Hits:

Indexed by: Journal Article

Date of Publication: 2009-12-01

Journal: 2nd International Conference on Nanoscale Materials and Engineering

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

Volume: 9

Issue: 12

Page Number: 7383-7387

ISSN: 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.