TY - GEN
T1 - Medical polymer filling into porous titanium fabricated by powder metallurgy and its mechanical functionality
AU - Niinomi, Mitsuo
AU - Nakai, Masaaki
AU - Akahori, Toshikazu
AU - Tsutsumi, Harumi
AU - Itsuno, Shinichi
AU - Haraguchi, Naoki
AU - Itoh, Yoshinori
AU - Ogasawara, Tadashi
AU - Onishi, Takashi
AU - Shindoh, Taku
PY - 2009/1/1
Y1 - 2009/1/1
N2 - Porous metallic materials can have a low Young's modulus, which is approximately equal to that of the human bone, by controlling the porosity. On the other hand, certain medical polymers exhibit bio-functionalities that are not intrinsically present in metallic materials. Therefore, a composite consisting of these materials is expected to possess both these advantages for biomedical applications. However, in the case of using porous metallic materials, the deterioration of mechanical properties should be concerned because the stress concentration may be induced near the pores. In this study, for the fabrication of the abovementioned composite, porous titanium bulks with different porosities were fabricated by powder metallurgy using atomized titanium powders with various diameters, and then a versatile process for filling a medical polymer (polymethylmethacrylate (PMMA) into fabricated porous titanium bulks (pTi) was developed. Then, the tensile strength and Young's modulus of pTi filled with PMMA (pTi/PMMA) fabricated using this process are systematically investigated.
AB - Porous metallic materials can have a low Young's modulus, which is approximately equal to that of the human bone, by controlling the porosity. On the other hand, certain medical polymers exhibit bio-functionalities that are not intrinsically present in metallic materials. Therefore, a composite consisting of these materials is expected to possess both these advantages for biomedical applications. However, in the case of using porous metallic materials, the deterioration of mechanical properties should be concerned because the stress concentration may be induced near the pores. In this study, for the fabrication of the abovementioned composite, porous titanium bulks with different porosities were fabricated by powder metallurgy using atomized titanium powders with various diameters, and then a versatile process for filling a medical polymer (polymethylmethacrylate (PMMA) into fabricated porous titanium bulks (pTi) was developed. Then, the tensile strength and Young's modulus of pTi filled with PMMA (pTi/PMMA) fabricated using this process are systematically investigated.
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M3 - Conference contribution
AN - SCOPUS:84902182618
SN - 9781899072088
T3 - Proceedings of the Euro International Powder Metallurgy Congress and Exhibition, Euro PM 2009
BT - Proceedings of the Euro International Powder Metallurgy Congress and Exhibition, Euro PM 2009
PB - European Powder Metallurgy Association (EPMA)
T2 - European International Powder Metallurgy Congress and Exhibition, Euro PM 2009
Y2 - 12 October 2009 through 14 October 2009
ER -