Consolidation of Iron Nanopowder by Nanopowder-Agglomerate Sintering at Elevated Temperature

Jai-Sung Lee; Joon-Chul Yun; Joon-Phil Choi; Geon-Yong Lee

doi:10.4150/KPMI.2013.20.1.001

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Consolidation of Iron Nanopowder by Nanopowder-Agglomerate Sintering at Elevated Temperature: Jai-Sung Lee, Joon-Chul Yun, Joon-Phil Choi, Geon-Yong Lee; Journal of Korean Powder Metallurgy Institute 2013;20(1):1-6
DOI: https://doi.org/10.4150/KPMI.2013.20.1.001

¹Department of Metallurgy and Materials Science, Hanyang University
²Department of Metallurgy and Materials Science, Hanyang University
³Department of Metallurgy and Materials Science, Hanyang University
⁴Department of Metallurgy and Materials Science, Hanyang University

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Abstract

The key concept of nanopowder agglomerate sintering (NAS) is to enhance material transport by controlling the powder interface volume of nanopowder agglomerates. Using this concept, we developed a new approach to full density processing for the fabrication of pure iron nanomaterial using Fe nanopowder agglomerates from oxide powders. Full density processing of pure iron nanopowders was introduced in which the powder interface volume is manipulated in order to control the densification process and its corresponding microstructures. The full density sintering behavior of Fe nanopowders optimally size-controlled by wet-milling treatment was discussed in terms of densification process and microstructures.

Keywords: Iron nanopowder;Agglomerate sintering;Full densification;Microstructure;

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