- Characterization of Fe Nanocapsules synthesized by Plasma Arc Discharge Process
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Woo-Young Park, Cheol-Su Youn, Ji-Hun Yu, Young-Woo Oh, Chul-Jin Choi
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J Korean Powder Metall Inst. 2004;11(6):510-514.
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DOI: https://doi.org/10.4150/KPMI.2004.11.6.510
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 Abstract
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- Iron-carbon nanocapsules were synthesized by plasma arc discharge (PAD) process under various atmosphere of methane, argon and hydrogen gas. Characterization and surface properties were investigated by means of HRTEM, XRD, XPS and Mossbauer spectroscopy. Fe nanocapsules synthesized were composed of three phases (alpha-Fe,;Y-Fe;and;Fe_3C) with core/shell structures. The surface of nanocapsules was covered by the shell of graphite phase in the thickness of 4~5nm.
- Preparation of FeAl nanopowders by Plasma Arc Discharge Process
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Woo-Young Park, Cheol-Su Youn, Ji-Hun Yu, Young-Woo Oh, Chul-Jin Choi
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J Korean Powder Metall Inst. 2004;11(6):522-527.
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DOI: https://doi.org/10.4150/KPMI.2004.11.6.522
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Abstract
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- Nano sized FeAl intermetallic particles were successfully synthesized by plasma arc discharge pro-cess. The synthesized powders shouted core-shell structures with the particle size of 10-20 nm. The core was metallic FeAl and shell was composed of amorphous AI_2O_3;and;a;little;amount;of;metallic;Fe_3O_4. Because of the difference of Fe and Al vapor pressure during synthesis, the Al contents in the nanoparticles depended on the Al contents of master alloy.
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