Effect of powder characteristics on the sinterability of a microwave-plasma-synthesized iron nanopowder
Compacts, made from a microwave-plasma-synthesized Fe nanopowder, were sintered under H2 at increasing temperatures. Despite its initial nanosize, we did not observe any enhanced, low-temperature sintering behavior with the powder. Using FESEM, XRD, and BET surface area, we found that the primary nanoparticles are aggregated into micrometer-sized dendritic structures that hinder sintering and densification.
L.J. Kecskes *, R.H. Woodman