플라즈마 아크 방전법으로 제조된 Fe 나노분말의 특성

박우영; 윤철수; 유지훈; 오영우; 최철진; Woo-Young Park; Cheol-Su Youn; Ji-Hun Yu; Young-Woo Oh; Chul-Jin Choi

Korean Journal of Materials Research, Vol.14, No.7, 511-515, July, 2004

DOI10.3740/MRSK.2004.14.7.511 Export Citation

플라즈마 아크 방전법으로 제조된 Fe 나노분말의 특성

Characteristics of Fe Nano Powders Synthesized by Plasma Arc Discharge Process

박우영^{1, 2, †}, 윤철수², 유지훈², 오영우¹, 최철진²

¹경남대학교 재료공학과
²한국기계연구원 재료기술연구부

Woo-Young Park^{1, 2, †}, Cheol-Su Youn³, Ji-Hun Yu³, Young-Woo Oh¹, and Chul-Jin Choi³

¹Division of Materials Engineering, Kyungnam University, Masan 631-701, Korea
²Division of Materials Engineering, Korea Institute of Machinery and Materials
³Division of Materials Engineering, Korea Institute of Machinery and Materials, Changwon, 641-010, Korea

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Fe nano powders were synthesized by plasma arc discharge (PAD) process and studied by means of X-ray Diffraction (XRD), Transmission Electron Microscopy (TEM) and X-ray Photoelectron Spectroscopy (XPS). Pure Fe rod( 99.9% ) was used as a source of metallic vapor under argon and hydrogen mixed atmosphere. The synthesized Fe nano powders had nearly spherical shapes and core-shell type structures. The influence of process parameters on the structure and size was investigated. The powder size increased with increasing of the chamber pressure and input current. High hydrogen gas ratio in chamber atmosphere affected the particle size and amount of Fe nanopowder.

Keywords:Fe nano powder;Plasma arc discharge;Core/shell structure

[References]

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[1] Choi CJ, Tolochko O, Kim BK, Materials Letters, 56, 289 (2002)

[2] Ahn JP, Park JK, J. of Korean Inst. of Met.& Mater., 34(7), 877 (1996)

[3] Choi CJ, Dong XL, J. of Korean Powder Metallurgy Institute, 11(1), 16 (2004)

[4] Lee GG, Kim SG, J. of Korean Powder Metallurgy Institute, 10(1), 51 (2003)

[5] Edelstein AS, Cammarata RC, Nanomaterials: Synthesis, Properties and Applications, p.38, Istitute of Physics Publishing Bristol and Philadelphia, USA, (1996) (1996)

[6] Maeng DY, Rhee CK, Lee NH, Park JH, Kim WW, Lee EG, Korean J. Mater. Res., 12(12), 941 (2002)

[7] Ohno T, Yatsuya S, J. J. of Applied Physics, 15(7), 1213 (1976)

[8] Yatsuya S, Kasukabe S, J. J. of Applied Physics, 12(11), 1675 (1973)

[9] Uda M, Nanostructured Materials, 1, 101 (1992)

[10] UYEDA R, Prog. Mater. Sci., 35(1), 1 (1991)

[11] Dembovsky V, Plasma Metallurgy, Bando, Korea, p.390, (1997) (1997)