Impact on Nano/Amorphous/Bio MaterialsNo Access

FABRICATION OF TRICALCIUM PHOSPHATE COMPACTS BY UNDERWATER-SHOCK CONSOLIDATION

AKIRA CHIBA

Department of Materials Science and Engineering, Kumamoto University, 2-39-1 Kurokami, Kumamoto 860-8555, Japan

Search for more papers by this author

and

YASUHIRO MORIZONO

Dept. of Materials Science and engineering, Kumamoto 860-8555, Japan

Search for more papers by this author

https://doi.org/10.1142/S0217979208047419Cited by:0 (Source: Crossref)

Abstract

The present study is to fabricate dense tricalcium phosphate (TCP) compacts by our newly developed underwater-shock consolidation technique and to investigate the characteristics of the compacts. By adding Al₂O₃ powder to β-TCP powder, the biocomposites were fabricated to improve the fracture toughness. Sound compacts of α- and β-TCP powders and β-TCP/Al₂O₃ biocomposite powder were fabricated without any cracks and tears. The relative densities of α- and β-TCP compacts were about 85% in as-compacted state and more 94% after annealing at 1373K for 7.2ks. Compressive strengths of α- and β-TCP compacts are 160 and 140MPa after annealing at 1373K for 7.2ks, respectively. Compressive strength and fracture toughness of β-TCP/Al₂O₃ biocomposites after annealed at 1373K for 7.2ks were 188MPa and 2.54MPa·m^1/2, which are comparable to values of human bone, respectively.

Keywords:

You currently do not have access to the full text article.
Recommend the journal to your library today!

References

M. Jarchoet al., J. of Materials Science 14, 142 (1979), DOI: 10.1007/BF01028337. Crossref, Web of Science, ADS, Google Scholar
M. Akaoet al., J. of Materials Science 17, 343 (1982), DOI: 10.1007/BF00591468. Crossref, Web of Science, ADS, Google Scholar
H.-S. Ryuet al., Biomaterials 23, 909 (2002), DOI: 10.1016/S0142-9612(01)00201-0. Crossref, Web of Science, Google Scholar
K. Hamano , Fine Ceramics Handbook ( Asakura , Tokyo , 1984 ) . Google Scholar
J. C. Elliott , Structure and Chemistry of the Apatites and Other Calcium Orthophosphates ( ELSEVIER , Amsterdam , 1994 ) . Google Scholar
A. Chiba et al. , Shock Waves , ed. A. F. Houwning ( Panther & Fyshwick , Australia , 1998 ) . Google Scholar
S. Kimura , A. Chiba and Y. Morizono , Impact Engineering and Application , eds. A. Chiba , S. Tanimura and K. Hokamoto ( ELSEVIER , 2001 ) . Google Scholar
A. Chibaet al., Materials Science and Engineering A350, 179 (2003). Google Scholar
A. Chiba, Y. Morizono and D. Michishita, Sci. Tech. Energetic Materials 66, 346 (2005). Google Scholar