FACS법에 의한 Fe-Al계 금속간화합물의 제조시 통전방식의 영향

윤기석; 정중채; 원창환; Ki-Seok Yun; Joong-Chae Jung; Chang-Whan Won

Korean Journal of Materials Research, Vol.9, No.7, 680-687, July, 1999

The Effects of Current Adjustment on the Preparation of Fe-Al Intermetallic Compounds by Field-Activated Combustion Synthesis

윤기석, 정중채, 원창환

충남대학교 급속응고 신소재연구소

Ki-Seok Yun, Joong-Chae Jung, and Chang-Whan Won

Engineering Research Center for Rapidly Solidified Materials, Chungnam National University, Daejeon 305-764, Korea

초록

Fe-Al계 금속간화합물이 FACS (Field-Activated Combustion Synthesis) 법에 의해 제조되었다. 이 계의 반응에 있어서 조성 (Fe:Al=3 : 1,2 : 1, 1 : 1.1 : 2, 1 : 3) , 성형압력 (150, 250, 350MPa), 저항 등이 조사되었는데. Al의 몰비, 성형압력, 전기장의 세가가 증가함에 따라서 연소온도와 연소속도는 증가하였다. 또한 이 계에 있어서 전류적용방식에 따른 반응에 대한 영향이 조사되었다. 전기장이 적용되지 않는 경우, 반응이 일어나기 위해서는 예열이 필요하였고, 예열을 하였을 경우라도 그 반응은 불안정연소파를 나타내어 완전한 반응이 이루어지지 않았다. 생성물은 X-ray, SEM, EDXS를 사용하여 그 구조와 조성을 관찰하였다.

e-Al intermetallic compounds were manufactured by using the field-activated combustion synthesis process. Effects of chemical composition(Fe:Al= 3: 1,2:1, 1:1, 1:2, 1:3), Compaction pressure(150, 250, 350MPa) and electrical resistance on the reaction were investigated in this system. As the molar ratio of Al, compaction pressure and electric field increased, the combustion temperature and velocity were increased. The influences for reaction with current adjust way were investigated in this system. But in the absence of a electric field, the reaction could sustain a nonsteady combustion wave and was not completed. The reaction products were characterized with X-ray, SEM and EDXS to determine the structure and composition.

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[1] Mcdanels DL, Matall. Trans., 16A, 4077 (1985)

[2] Long TT, Aisaka T, J. Tap. Metals, 51, 864 (1987)

[3] Mizuta A, Nakamura T, Sakai K, Tetsu-to-Hagane, 75, 1783 (1989)

[4] Flemings MC, Riek RG, Young KP, Mat. Sci. Eng., 25, 103 (1976)

[5] ASM International : Metals Handbook(10th ed.)/ ASM International Handbook Committee, v.2, pp.903, 1990 (1990)

[6] Chou TW, Kelly A, Okura A, Composite, 16(3), 187 (1985)

[7] Miyase A, Oiekarski K, Mat. Sci., 16, 251 (1981)

[8] Cornie JA, Suplinskasnd RJ, Hauze AW, Cerm. Eng. Sci. Proc., 1, 728 (1980)

[9] Mori N, Sorano H, Kitahara A, Ogi K, Matsuda K, J. Japan Inst. Metals, 47, 1132 (1983)

[10] Kimura Y, J. Mat. Sci., 19, 3107 (1984)

[11] Stoloff NS, Davies RG, Prog. Mater. Sci, 13(3) (1966)

[12] Mckamey CG, Horton JA, Liu CT, J. Mater. Res., 4, 1156 (1989)

[13] Fair GH, Wood JV, Powder Metallurgy, 36(2123) (1993)

[14] Stoloff NS, Int. Mater. Rev., 34(153) (1989)

[15] YAMAGUCHI M, UMAKOSHI Y, Prog. Mater. Sci., 34(1), 1 (1990)

[16] Munir ZA, Bull. Amer. Ceram. Soc., 67(2), 342 (1988)

[17] Munir ZA, Metall. Trans. A., 23A, 7 (1992)

[18] Munir ZA, Review in Particulate Materials, 1, 41 (1993)

[19] 정중채, 박상규, 고석권, 원창환, 대한금속학회지, 35(1) (1997)

[20] 정중채, 주성민, 이종현, 고석권, 원창환, 대한금속학회지, 33(9) (1995)

[21] Feng AG, Munir ZA, Journal of the American Ceramic Society, 80(5)