Rev.Adv.Mater.Sci. (RAMS)
No 2, Vol. 28, 2011, pages 217-221

WARM COMPACTION OF AN Fe-Si/Fe POWDER MIXTURE

Se Hoon Kim and Young Do Kim

Abstract

In this study, we present high-density nanostructured Fe-Si/Fe-based soft/soft composite, prepared by the warm compaction method. Ball-milled Fe-33Si (a/o) powder, pure Fe powder, and polyvinyl pyrrolidone (PVP) were mixed in an acetone solvent to create a powder mixture and then compacted at various temperatures and pressures. Sample densities were obtained up to a 90% theoretical value. The warm-compacted sample prepared at 650 MPa and 240 °C for 1h had the highest compaction properties in comparison with other samples prepared at pressures of either 300 or 400 MPa, and at room temperature or 120 °C.

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