급속 소결에 의한 인공관절용 나노구조 2/3 Cr-ZrO2 복합재료 제조 및 특성

강현수; 강보람; 손인진; Hyun-Su Kang; Bo-Ram Kang; In-Jin Shon

Korean Journal of Materials Research, Vol.24, No.9, 495-501, September, 2014

DOI10.3740/MRSK.2014.24.9.495 Export Citation

급속 소결에 의한 인공관절용 나노구조 2/3 Cr-ZrO2 복합재료 제조 및 특성

Properties and Fabrication of Nanostructured 2/3 Cr-ZrO2 Composite for Artificial Joint by Rapid Sinerting

강현수, 강보람, 손인진^†

전북대학교 신소재공학부 수소연료전지 연구센터

Hyun-Su Kang, Bo-Ram Kang, and In-Jin Shon^†

Division of Advanced Materials Engineering and the Research Center of Hydrogen and Fuel Cell, Engineering College, Chonbuk National University, 561-756, Korea

E-mail:

Despite having many attractive properties, ZrO2 ceramic has a low fracture toughness which limits its wide application. One of the most obvious tactics to improve its mechanical properties has been to add a reinforcing agent to formulate a nanostructured composite material. Nanopowders of ZrO2 and Cr were synthesized from CrO3 and Zr powder by high energy ball milling for 10 h. Dense nanocrystalline 2/3Cr-ZrO2 composite was consolidated by a high-frequency induction heated sintering method within 5 min at 600 oC from mechanically synthesized powder. The method was found to enable not only rapid densification but also the inhibition of grain growth, preserving the nano-scale microstructure. Highly dense 2/3Cr- ZrO2 composite with relative density of up to 99.5% was produced under simultaneous application of a 1 GPa pressure and the induced current. The hardness and fracture toughness of the composite were 534 kg/mm2 and 7MPa·m1/2, respectively. The composite was determined to have good biocompatibility.

Keywords:composite;nanomaterial;synthesis;mechanical properties

[References]

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[1] Rahaman MN, Yao AH, Bal BS, Garino JP, Ries MD, J. Am. Ceram. Soc., 90(7), 1965 (2007)

[2] Tok AIY, Luo LH, Boey FYC, Mater. Sci. Eng. A-Struct. Mater. Prop. Microstruct. Process., 383, 229 (2004)

[3] Shon IJ, Lee GW, Doh JM, Yoon JK, Electron. Mater. Lett., 9, 219 (2013)

[4] Kim W, Suh CY, Roh KM, Lim JW, Shim HB, Park HK, Shon IJ, Korean J. Met. Mater., 50, 861 (2012)

[5] Park NR, Na KI, Kwon HJ, Lim JW, Shon IJ, Korean J. Met. Mater., 51, 753 (2013)

[6] Shon IJ, Du SL, Doh JM, Yoon JK, Met. Mater. Int., 19, 1041 (2013)

[7] Kim NR, Cho SW, Kim W, Shon IJ, Korean J. Met. Mater., 50, 34 (2012)

[8] Suryanarayana C, Norton MG, X-ray Diffraction A Practical Approach, Plenum Press, New York (1998).

[9] Knake O, Kubaschewski O, Hesselmann K, Thermochemical Properties of Inorganic Substances, Springer- Verlag, New York (1991).

[10] Shen ZJ, Johnsson M, Zhao Z, Nygren M, J. Am. Ceram. Soc., 85(8), 1921 (2002)

[11] Garay JE, Anselmi-Tamburini U, Munir ZA, Glade SC, Asoka- Kumar P, Appl. Phys. Lett., 85, 573 (2004)

[12] Friedman JR, Garay JE, Anselmi-Tamburini U, Munir ZA, Intermetallics, 12, 589 (2004)

[13] Garay JE, Anselmi-Tamburini U, Munir ZA, Acta Mater., 51, 4487 (2003)

[14] Raj R, Cologna M, Francis JSC, J. Am. Ceram. Soc., 94(7), 1941 (2011)

[15] Coble RL, J. Appl. Phys., 41, 4798 (1970)

[16] Shon IJ, Rhon DH, Kim HC, Met. Mater., 6, 533 (2000)

[17] Anstis GR, Chantikul P, Lawn BR, Marshall DB, J. Am. Ceram. Soc., 64, 533 (1981)

[18] Huang SG, J. European Ceram. Soc., 27, 3269 (2007)

[19] Kwak SM, Park HK, Shon IJ, Korean J. Met. Mater., 51, 314 (2013)