전기방전소결에 의해 제조된 다공성 Titanium 임플란트의 기계적 특성

현창용; 허재근; 이원희; C.Y. Hyun; J.K. Huh; W.H. Lee

Korean Journal of Materials Research, Vol.16, No.3, 173-177, March, 2006

DOI10.3740/MRSK.2006.16.3.173 Export Citation

전기방전소결에 의해 제조된 다공성 Titanium 임플란트의 기계적 특성

Mechanical Properties of Electro-Discharge-Sintered Porous Titanium Implants

현창용, 허재근, 이원희^{1, †}

서울산업대학교 공과대학 신소재공학과
¹세종대학교 공과대학 신소재공학과

C.Y. Hyun, J.K. Huh, and W.H. Lee^{1, †}

Department of Materials Engineering, Seoul National University of Technology, Seoul, 139-743, Korea
¹Department of Advanced Materials Engineering, Sejong University, Seoul 143-747, Korea

E-mail:

Porous surfaced Ti implant compacts were fabricated by electro-discharging-sintering (EDS) of atomized spherical Ti powders. Powders of [Math Processing Error] in diameter were vibratarily settled into a quarts tube and subject to a high voltage and high density current pulse in Ar atmosphere. Single pulse of 0.7 to 2.0 kJ/0.7 gpowder, from 150, 300, and [Math Processing Error] capacitors was applied in less than [Math Processing Error] to produce twelve different porous-surfaced Ti implant compacts. The solid core formed in the center of the compact shows similar microstructure of cp Ti which was annealed and quenched in water. Hardness value at the solid core was much higher than that at the particle interface and particles in the porous layer, which can be attributed to both heat treatment and work hardening effects induced by EDS. Compression tests were made to evaluate the mechanical properties of the EDS compacts. The compressive yield strength was in a range of 12 to 304MPa which significantly depends on input energy. Selected porous-surfaced Ti-6Al-4V dental implant compacts with a solid core have much higher compressive strengths compared to the human teeth and sintered Ti dental implants fabricated by conventional sintering process.

Keywords:Ti;implant;porous;sintering;electro-discharge;hardness

[References]

Spector M, Biocompatibility of Orthopedic Implants, p.55, CRC Press, Boca Raton (1982) (1982)
Spector M, Biocompatibility of Orthopedic Implants, p.89, CRC Press, Boca Raton (1982) (1982)
Nguyen HQ, Deporter DA, Pilliar PM, Valiquette N, Yakubovich R, Biomater., 25, 865 (2004)
Amigo V, Salvador MD, Romero F, Solves C, Moreno JF, J. Mater. Proc. Technol., 14, 117 (2003)
Asaoka K, Kuwayarna N, Okuno O, Miura I, J. Biomed. Mater. Res., 19, 699 (1985)
Yue S, Pillar RM, Weatherly GC, J. Biomed. Mater. Res., 18, 1043 (1984)
Pilliar RM, J. Biomed. Mater. Res., 21, 1 (1987)
Donachie M, Titanium, A Technical Guide, p.98, ASM International, Materials Park, Ohio (2000) (2000)
Eylong D, Froes PH, in Proceedings of Symposium on Titanium Rapid Solidification Technology, ed. P.H. Froes and D. Eylong (AIME, Wanendale, OH, 1986) p.273 (1986)
Shakery M, Al-Hassani S, Davies TJ, Powder Met. lnt., 11, 120 (1970)
Alp T, Al-Hassani S, Johnson W, J. Eng. Mater. Tech., 107, 109 (1985)

[1] Spector M, Biocompatibility of Orthopedic Implants, p.55, CRC Press, Boca Raton (1982) (1982)

[2] Spector M, Biocompatibility of Orthopedic Implants, p.89, CRC Press, Boca Raton (1982) (1982)

[3] Nguyen HQ, Deporter DA, Pilliar PM, Valiquette N, Yakubovich R, Biomater., 25, 865 (2004)

[4] Amigo V, Salvador MD, Romero F, Solves C, Moreno JF, J. Mater. Proc. Technol., 14, 117 (2003)

[5] Asaoka K, Kuwayarna N, Okuno O, Miura I, J. Biomed. Mater. Res., 19, 699 (1985)

[6] Yue S, Pillar RM, Weatherly GC, J. Biomed. Mater. Res., 18, 1043 (1984)

[7] Pilliar RM, J. Biomed. Mater. Res., 21, 1 (1987)

[8] Donachie M, Titanium, A Technical Guide, p.98, ASM International, Materials Park, Ohio (2000) (2000)

[9] Eylong D, Froes PH, in Proceedings of Symposium on Titanium Rapid Solidification Technology, ed. P.H. Froes and D. Eylong (AIME, Wanendale, OH, 1986) p.273 (1986)

[10] Shakery M, Al-Hassani S, Davies TJ, Powder Met. lnt., 11, 120 (1970)

[11] Alp T, Al-Hassani S, Johnson W, J. Eng. Mater. Tech., 107, 109 (1985)