Al-Ni계의 기계·화학적 방법으로 제조된 Raney Ni의 미세 구조 분석

최재웅; 이창래; 강성군; Jae Woong Choi; Chang Rae Lee; Sung Goon Kang

Korean Journal of Materials Research, Vol.13, No.1, 24-30, January, 2003

DOI10.3740/MRSK.2003.13.1.024 Export Citation

Al-Ni계의 기계·화학적 방법으로 제조된 Raney Ni의 미세 구조 분석

Microstructure of Raney Ni fabricated by Mechanochemical Process in Al-Ni System

최재웅^†, 이창래¹, 강성군

한양대학교 신소재공학부
¹한국기계연구원

Jae Woong Choi^†, Chang Rae Lee¹, and Sung Goon Kang

Div. of Materials Science and Engineering, Hanyang Univ., Seoul, Korea, 133-791
¹Korea Institute of Machinery & Materials, Korea, 631-830

E-mail:

The Raney Ni catalyst was fabricated by mechanochemically process(MC process) in the Al-Ni system. Intermetallic compound obtained by mechanical alloying was leached in an alkaline solution. The characteristics of the mechanically alloyed powder and Raney Ni catalyst were analyzed by XRD, ICP-AES and EXAFS. In Al-50wt.%Ni, the metastable intermetallic compound phase close to AlNi phase was obtained by mechanical alloying unlike Al-Ni equilibrium phase diagram. The metastable intermetallic compound was transformed into Al 3 Ni 2 phase via the annealing at 750 ? C . The microstructure of Raney Ni fabricated by MC process was mainly bcc Ni including fcc Ni.

Keywords:Raney Ni;Mechanochemically process;Mechanical alloying;EXAFS

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[Related Articles]

[1] Fouilloux P, Applied Catalysis, 8, 1 (1983)

[2] Mund K, et al., J. Electrochem. Soc., 124, 1 (1977)

[3] Kenjo T, J. Electrochem. Soc., 132, 383 (1985)

[4] Hall DE, J. Electrochem. Soc., 132, 41c (1985)

[5] 이주성, 강성군, 문세기, 알칼리형 연료전지에 관한 연구, TEMD-410-970642, 국방과학연구소 (1997) (1997)

[6] Shingu PH, Materials Science Forum, 88-90 (1992), 'Mechanical Alloying' ; Pro. Int. Symp. on Mechanical Alloying, Kyoto, Japan, May 7-10 (1991) (1991)

[7] Tavari AR, Materials Science Forum Vol. 179-181 (1995). 'Mechanically Alloyed and Nanocrystalline Materials' ; Pro Int. Symp. on Metastable, Mechanically Alloyed and Nanocrystalline Materials, Grenoble, France, June 27-July 1, 1994, TTP, Switzerland (1995) (1995)

[8] Lu L, Lai MO, 'Mechanical Alloying', Kluwer Academic Publ., Boston (1998) (1998)

[9] Koch CC, Nanostruct. Mater., 2, 102 (1993)

[10] Gleiter H, Mater. Sci. Eng., 52, 91 (1982)

[11] Myung JS, Lim HJ, Kang SG, Oxi, of Metals, 51, 79 (1999)

[12] Goldstein AN, 'Handbook of Nanophase Materials', Marcel Dekker, NY (1997) (1997)

[13] Masslski TB, 'Binary Alloy Phase Diagram', Vol. 1, 2nd ed., ASM International, USA (1990) (1990)

[14] Baker H, 'ASM Handbook Vol. 3 ; Alloy Phase Diagrams', ASM International, USA (1992) (1992)

[15] Smithells CJ, Brandes EA, Brook GB, 'Smithells Metals Reference Book', 7th ed., Butter-Worths, London (1998) (1998)

[16] Ivanov E, Griorieva T, Golubkova G, Boldyrev V, Fasman AB, Mikhailenko SD, Kalinina OT, Mater. Lett., 7, 51 (1988)

[17] Shiga S, Itsukaichi T, Umemoto M, Okane I, J. Jpn. Soc. Powder and Powder Metallurgy, 38, 963 (1991)

[18] Nastasi M, J. Less-Common Metals, 168, 91 (1991)

[19] Nasu T, Koch CC, Edwards AM, Sayers DE, J. Non-Crystalline Solids, 150, 491 (1992)

[20] Birringer R, Mater. Sci. Eng. A, 117, 33 (1989)

[21] Ivanov E, Makhlouf SA, Sumiyama K, Yamacuchi H, Suzuki K, J. Alloys and Compounds, 185, 25 (1992)

[22] Makhlouf SA, Sumiyama K, Ivanov E, Yamauchi H, Hihara T, Suzuki K, Mater. Sci. Eng. A, 181-182, 1184 (1994)