Hye-Moon Lee

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Fe-Cr-Al alloy nanopowders were successfully prepared by electrical wire explosion method in ethyl alcohol media. The formation of FeCr-Al alloy nanopowder was monitored by X-ray diffraction. The alloy powders have spherical shape and nanometer size. The alloy powders prepared by the electrical wire explosion method have main crystal structures of bcc Fe-Cr(More)
We have investigated the effects of Pb2+ addition on the morphological development of CdSe nanocrystals. We show that the addition of Pb ions in the initial precursor solution changed the morphology of CdSe nanocrystals to branched rods with high aspect ratio. The branched nanocrystals are mainly composed of wurzite phase grown along the [001] direction and(More)
Zirconium carbide (ZrC) is becoming a promising hard material for high-temperature applications in the tool and nuclear energy industries. There are few methods for fabricating micrometric ZrC particles including the carbothermal reduction of zirconium dioxide and direct exothermic reaction of pure zirconium and graphite powder. A novel reduction method has(More)
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