Browse > Article
http://dx.doi.org/10.4150/KPMI.2005.12.5.332

Porous and Porous Surfaced Ti-6Al-4V Implants Fabricated by Electro-Discharge-Sintering : (2) Hardness and Compressive Strength  

Hyun, C. Y. (Department of Materials Engineering, Seoul National University of Technology)
Huh, J. K. (Department of Materials Engineering, Seoul National University of Technology)
Lee, W. H. (Department of Advanced Materials Engineering, Sejong University)
Publication Information
Journal of Powder Materials / v.12, no.5, 2005 , pp. 332-335 More about this Journal
Abstract
Porous and porous surfaced Ti-6Al-4V implant compacts were fabricated by electro-discharge-sintering (EDS) of atomized spherical Ti-6Al-4V powders with a diameter of $100-150\;{\mu}m$, The solid core formed in the center of the compact after discharge was composed of acicular ${\alpha}+{\beta}$ Widmanstatten grains, The hardness value at the solid core was much higher than that at the particle interface or particles in the porous layer, which can be attributed to both heat treatment and work hardening effects induced from EDS, The compressive yield strength was in a range of 19 to 436 MPa which significantly depends on both input energy and capacitance, Selected porous-surfaced Ti-6Al-4V implant compacts with a solid core have much higher compressive strengths compared to the human teeth and sintered Ti dental implants.
Keywords
Ti-6Al-4V; Implant; Porous; Sintering; Electro-discharge; Hardness;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 M. Spector: Biocompatibility of Orthopedic Implants, D. F. Williams (Ed.) : CRC Press, Boca Raton (1982) 55
2 M. Spector: Biocompatibility of Orthopedic Implants, D. F. Williams (Ed.) : CRC Press, Boca Raton (1982) 89
3 H. Q. Nguyen, D. A. Deporter, P. M. Pilliar, N. Valiquette and R. Yakubovich : Biomater., 25 (2004) 865   DOI   ScienceOn
4 V. Amigo, M. D. Salvador, F. Romero, C. Solves and J. F. Moreno : J. Mater. Proc. Technol., 14 (2003) 117   DOI   ScienceOn
5 C.Y. Hyun, J. K. Huh and W. H. Lee : J. Kor. Powder Metall. Inst., submitted. 12 (2005) 325   DOI   ScienceOn
6 M. Shakery, S. Al-Hassani and T. J. Davies : Powder Met. Int., 11 (1970) 120
7 T. Alp, S. Al-Hassani and W. Johnson : J. Eng. Mater. Tech, 107 (1985) 109
8 R.W. Pilips : Science of Dental Materials, Sanders, Philadelphia (1982) 97
9 A.H. Howell and R. Mandly : J. Dental Research, 27 (1948) 705   DOI
10 J. W. Stanford, K V. Weigel, G. C. Paffenbarger and W. T. Sweeney : J. Am. Dent. Associ., 60 (1960) 746   DOI
11 K. Asaoka, N. Kuwayama, O. Okuno and I. Miura : J. Biomed. Mater. Res., 19 (1985) 699   DOI   ScienceOn