Full density processing of pure iron nanomaterial by nanopowder agglomerate sintering and related properties

Understanding the nanopowder agglomerate sintering (NAS) process is essential in the fabriaction of small nanopowder materials and components by pressureless sintering. The key concept of NAS is to enhance material transport by controlling the powder interface volume of nanopowder agglomerates. Using this concept, we have developed a new approach to full density processing for the fabrication of pure iron nano material using Fe nanopowder agglomerates produced by the hydrogen reduction of metal oxide powders. Full density processing of pure iron nanopowders and related properties are presented in which the powder interface volume is manipulated in order to control the densification process and its corresponding microstructures