섬유단상 Al 2 O 3 -ZrO 2 세라믹 복합재료의 미세조직제어

김기현; 김택수; 이병택; Ki-Hyun Kim; Taek-Soo Kim; Byong-Taek Lee

Korean Journal of Materials Research, Vol.13, No.4, 213-218, April, 2003

DOI10.3740/MRSK.2003.13.4.213 Export Citation

섬유단상 Al 2 O 3 -ZrO 2 세라믹 복합재료의 미세조직제어

Microstructure Control of Fibrous Monolithic Al 2 O 3 -ZrO 2 Composites

김기현, 김택수, 이병택^†

공주대학교 신소재공학부, 충남나노소재연구센터

Ki-Hyun Kim, Taek-Soo Kim, and Byong-Taek Lee^†

Chungnam Research Center for Nano Materials, School of Materials Engineering, Kong-ju National University, Kongju, Chungnam 314-701, Korea

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Fibrous monolithic control of Al 2 O 3 - ZrO 2 composite was investigated by multi-pass extrusion process. To obtain sound Al 2 O 3 -X O 2 sintered bodies, burning out and sintering process were carefully carried out. The sintered bodies showed continuous, fibrous monolithic microstructure without any swelling. Many microcracks were observed at the Al 2 O 3 - ZrO 2 interfaces due to the mismatching of thermal expansion coefficient between Al 2 O 3 and ZrO 2 phase. Most of m- ZrO 2 grains included twin defects such as (001), (010) and (011) type to accommodate the phase transformation induced stress.

Keywords:Fibrous monolith;Al 2 O 3 - ZrO 2;microstructure control;composite

[References]

Jordan DR, Ophthalmology Clinics of North Am., 13(4), 587 (2000)
Celik E, J. Mater. Proc. Tech., 128(1-3), 205 (2002)
Sathiyakumar M, Gnanam FD, Ceram. Inter., 28(2), 195 (2002)
Lee BT, Hiraga K, Shindo D, Nishiyama A, J. Mater. Sci., 29(4), 959 (1994)
Lee BT, Nishiyama A, Hiraga K, Mater. Trans., 4(8), 682 (1993)
Gao P, Meng LJ, dos Santos MP, Teixeira V, Andritschky M, Vacuum, 64, 267 (2002)
Kaya C, Butler EG, Lewis MH, J. Euro. Ceram. Soc., 23(6), 935 (2003)
Rodney, Trice W, John, Halloran W, J. Am. Ceram. Soc., 82(11), 2943 (1999)
Lienard SY, Kovar D, Moon RJ, Bowman KJ, Halloran JW, J. Mater. Sci., 35, 365 (2000)
Hoy CV, Barda A, Griffith M, Halloran W, J. Am. Ceram. Soc., 81(1), 152 (1998)
Hrdina KE, Halloran JW, J. Mat. Sci., 33, 2805 (1998)

[1] Jordan DR, Ophthalmology Clinics of North Am., 13(4), 587 (2000)

[2] Celik E, J. Mater. Proc. Tech., 128(1-3), 205 (2002)

[3] Sathiyakumar M, Gnanam FD, Ceram. Inter., 28(2), 195 (2002)

[4] Lee BT, Hiraga K, Shindo D, Nishiyama A, J. Mater. Sci., 29(4), 959 (1994)

[5] Lee BT, Nishiyama A, Hiraga K, Mater. Trans., 4(8), 682 (1993)

[6] Gao P, Meng LJ, dos Santos MP, Teixeira V, Andritschky M, Vacuum, 64, 267 (2002)

[7] Kaya C, Butler EG, Lewis MH, J. Euro. Ceram. Soc., 23(6), 935 (2003)

[8] Rodney, Trice W, John, Halloran W, J. Am. Ceram. Soc., 82(11), 2943 (1999)

[9] Lienard SY, Kovar D, Moon RJ, Bowman KJ, Halloran JW, J. Mater. Sci., 35, 365 (2000)

[10] Hoy CV, Barda A, Griffith M, Halloran W, J. Am. Ceram. Soc., 81(1), 152 (1998)

[11] Hrdina KE, Halloran JW, J. Mat. Sci., 33, 2805 (1998)