Characterization and Sintering Behaviors of Fe Based Nanopowders Prepared by Arc Discharge Process

C.J. Choi; J.H. Yu; Jung Goo Lee

doi:10.4028/www.scientific.net/MSF.638-642.1755

Paper Titles

Grain Boundary Nanostructure and High Temperature Plastic Flow in Polycrystalline Oxide Ceramics
p.1731

Crystallographic Features of Ferroelectric States around the Tetragonal /Rhombohedral Phase Boundary in Pb_1-xLa_x(Zr_1-yTi_y)O₃
p.1737

Magnetic Properties, Nanostructure, and Ordering Kinetics of Nb Additive FePtCu Films
p.1743

Study on the Nanostructure and Magnetic Properties of NdFeNbB Permanent Magnets
p.1749

Characterization and Sintering Behaviors of Fe Based Nanopowders Prepared by Arc Discharge Process
p.1755

Stability of the Orbital-Modulated State in the Layered Perovskite Manganite Sr_2-xR_xMnO₄ (R = Pr, Nd)
p.1760

Carbon Nanostructures Produced by an AC Arc Discharge
p.1766

Measurement of Elastic Constants on Nanostructured Iron and Copper
p.1772

Dispersion of Nano-Materials into Polymeric System for Enhanced Properties
p.1778

HomeMaterials Science ForumMaterials Science Forum Vols. 638-642Characterization and Sintering Behaviors of Fe...

Characterization and Sintering Behaviors of Fe Based Nanopowders Prepared by Arc Discharge Process

Abstract:

The formation of Fe nanopowders by Plasma Arc discharge process and sintering behavior of Fe nanopowder has been investigated. The effect of processing parameters on the size and microstructure and their pressureless sintering behaviors have been analyzed. Also the addition effect of micron powder to nanopowder on the compaction and sintering was studied. The prepared Fe nanpowder showed nearly spherical shape with the average size of 100 nm. The surface oxide layer of nanopowder played an important role on the initial densification of the green compact. The hardness and sintered density of nano/micron bimodal powder was similar to those of pure nanopowder.