나노크기 금속입자가 분산된 Al 2 O 3 나노복합재료의 제조 및 마모거동

오승탁; 윤세중; 정영근; Sung-Tag Oh; Se-Joong Yoon; Young-Keun Jeong

Korean Journal of Materials Research, Vol.15, No.8, 503-507, August, 2005

DOI10.3740/MRSK.2005.15.8.503 Export Citation

나노크기 금속입자가 분산된 Al 2 O 3 나노복합재료의 제조 및 마모거동

Fabrication and Wear Behavior of Nano-sized Metal Particle Dispersed Al 2 O 3 Nanocomposites

오승탁 ^†, 윤세중, 정영근¹

서울산업대학교 신소재공학과
¹요업기술원 나노소재팀

Sung-Tag Oh^†, Se-Joong Yoon, and Young-Keun Jeong¹

Department of Materials Science and Engineering, Seoul National University of Technology, Seoul, 139-743, Korea
¹Nano Materials Laboratory, Korea Institute of Ceramic Engineering and Technology, Seoul 153-801, Korea

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Microstructure and wear behavior of A1203-based nanocomposites with Cu and Ni-Co dispersions were investigated. Al 2 O 3 /Cu and Al 2 O 3 /Ni?Co nanocomposites were fabricated by hydrogen reduction and sintering method using metal oxide and metal nitrates. The nanocomposites showed increased mechanical properties compared with monolithic Al 2 O 3 . In particular, high toughness and hardness were measured for the Al 2 O 3 /Ni?Co nanocomposite consolidated by spark plasma sintering. A minimum value of wear coefficient comparable to the monolithic Al 2 O 3 was obtained for Al 2 O 3 /Ni?Co nanocomposite. Wear behavior is discussed in terms of microstructure and mechanical properties of nanocomposites

Keywords:metal nanocomposites;mechanical properties;wear

[References]

Niihara K, Nakahira A, in Advanced Structural Inorganic Composites. ed. P. Vincenzini (Elsevier, Trieste, Italy, 1990) p. 637 (1990)
Niihara K, J. Ceram. Sco. Jpn., 99(10), 974 (1991)
Sekino T, Nakajima T, Ueda S, Niihara K, J. Am. Ceram. Soc., 80(5), 1139 (1997)
Wiederhorn SM, Hockley BJ, J. Mater. Sci., 18, 766 (1983)
Davidge RW, Brook RJ, Cambier F, Poorteman M, Leriche A, O'Sullivan D, Hampshire S, Kennedy T, British Ceram. Trans., 96(3), 121 (1997)
Kim SH, Lee SW, Kim YH, Riu DH, Sekino T, Niihara K, J. Korean Ceram. Soc., 38(12), 1080 (2001)
Oh ST, Lee JS, Sekino T, Niihara K, Scripta Mater., 44(8-9), 2117 (2001)
Smith CS, Trans. Metall. Soc. AIME, 175, 15 (1948)
Oh ST, Kim JN, Kang KM, Korean J. Mater. Res., 14(10), 696 (2004)
Tamari N, Tanaka T, Tanaka K, Kondoh I, Kawahara M, Tokita M, J. Ceram. Soc. Jpn., 103(7), 740 (1995)
Kingery WD, Bowen HK, Dr. Uhlmann, Introduction to Ceramics, 2nd Ed., p. 765, John Wiley and Sons, New York, USA, (1976) (1976)
Jiao S, Jenkins ML, Davidge RW, Acta Mater., 45(1), 149 (1997)
Evans AG, J. Am. Ceram. Soc., 73(2), 187 (1990)
Ohji T, Jeong YK, Choa YH, Niihara K, J. Am. Ceram. Soc., 81(6), 1453 (1998)
Cho SCJ, Hockey BJ, Lawn BR, Bennison SJ, J. Am. Ceram. Soc., 72(7), 1249 (1989)

[Related Articles]

[1] Niihara K, Nakahira A, in Advanced Structural Inorganic Composites. ed. P. Vincenzini (Elsevier, Trieste, Italy, 1990) p. 637 (1990)

[2] Niihara K, J. Ceram. Sco. Jpn., 99(10), 974 (1991)

[3] Sekino T, Nakajima T, Ueda S, Niihara K, J. Am. Ceram. Soc., 80(5), 1139 (1997)

[4] Wiederhorn SM, Hockley BJ, J. Mater. Sci., 18, 766 (1983)

[5] Davidge RW, Brook RJ, Cambier F, Poorteman M, Leriche A, O'Sullivan D, Hampshire S, Kennedy T, British Ceram. Trans., 96(3), 121 (1997)

[6] Kim SH, Lee SW, Kim YH, Riu DH, Sekino T, Niihara K, J. Korean Ceram. Soc., 38(12), 1080 (2001)

[7] Oh ST, Lee JS, Sekino T, Niihara K, Scripta Mater., 44(8-9), 2117 (2001)

[8] Smith CS, Trans. Metall. Soc. AIME, 175, 15 (1948)

[9] Oh ST, Kim JN, Kang KM, Korean J. Mater. Res., 14(10), 696 (2004)

[10] Tamari N, Tanaka T, Tanaka K, Kondoh I, Kawahara M, Tokita M, J. Ceram. Soc. Jpn., 103(7), 740 (1995)

[11] Kingery WD, Bowen HK, Dr. Uhlmann, Introduction to Ceramics, 2nd Ed., p. 765, John Wiley and Sons, New York, USA, (1976) (1976)

[12] Jiao S, Jenkins ML, Davidge RW, Acta Mater., 45(1), 149 (1997)

[13] Evans AG, J. Am. Ceram. Soc., 73(2), 187 (1990)

[14] Ohji T, Jeong YK, Choa YH, Niihara K, J. Am. Ceram. Soc., 81(6), 1453 (1998)

[15] Cho SCJ, Hockey BJ, Lawn BR, Bennison SJ, J. Am. Ceram. Soc., 72(7), 1249 (1989)