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http://dx.doi.org/10.4150/KPMI.2008.15.4.285

Composite and Spark Plasma Sintering of the Atomized Fe Amorphous Powders and Wire-exploded Cu Nanopowder in Liquid  

Kim, Jin-Chun (School of Materials Science & Engineering, University of Ulsan)
Goo, Wang-Heo (School of Materials Science & Engineering, University of Ulsan)
Yoo, Joo-Sik (School of Materials Science & Engineering, University of Ulsan)
Publication Information
Journal of Powder Materials / v.15, no.4, 2008 , pp. 285-291 More about this Journal
Abstract
Fe based ($Fe_{68.2}C_{5.9}Si_{3.5}B_{6.7}P_{9.6}Cr_{2.1}Mo_{2.0}Al_{2.0}$) amorphous powder were produced by a gas atomization process, and then ductile Cu powder fabricated by the electric explosion of wire(EEW) were mixed in the liquid (methanol) consecutively. The Fe-based amorphous - nanometallic Cu composite powders were compacted by a spark plasma sintering (SPS) processes. The nano-sized Cu powders of ${\sim}\;nm$200 produced by EEW in the methanol were mixed and well coated with the atomized Fe amorphous powders through the simple drying process on the hot plate. The relative density of the compacts obtained by the SPS showed over 98% and its hardness was also found to reach over 1100 Hv.
Keywords
Amorphous metal; Gas atomization; Electric explosion of wire in liquid; Spark plasma sintering; Composite powders;
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