Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Microstructural Characterization of Gas Atomized Copper-Iron Alloys with Composition and Powder Size

  • Abbas, Sardar Farhat (Critical Materials & Semi-Conductor Packaging Engineering, University of Science & Technology) ;
  • Kim, Taek-Soo (Critical Materials & Semi-Conductor Packaging Engineering, University of Science & Technology)
  • Received : 2017.12.28
  • Accepted : 2018.01.12
  • Published : 2018.02.28
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Abstract

Cu-Fe alloys (CFAs) are much anticipated for use in electrical contacts, magnetic recorders, and sensors. The low cost of Fe has inspired the investigation of these alloys as possible replacements for high-cost Cu-Nb and Cu-Ag alloys. Here, alloys of Cu and Fe having compositions of $Cu_{100-x}Fe_x$ (x = 10, 30, and 50 wt.%) are prepared by gas atomization and characterized microstructurally and structurally based on composition and powder size with scanning electron microscopy (SEM) and X-ray diffraction (XRD). Grain sizes and Fe-rich particle sizes are measured and relationships among composition, powder size, and grain size are established. Same-sized powders of different compositions yield different microstructures, as do differently sized powders of equal composition. No atomic-level alloying is observed in the CFAs under the experimental conditions.

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