Medical polymer filling into porous titanium fabricated by powder metallurgy and its mechanical functionality

Mitsuo Niinomi, Masaaki Nakai, Toshikazu Akahori, Harumi Tsutsumi, Shinichi Itsuno, Naoki Haraguchi, Yoshinori Itoh, Tadashi Ogasawara, Takashi Onishi, Taku Shindoh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationProceedings of the Euro International Powder Metallurgy Congress and Exhibition, Euro PM 2009
PublisherEuropean Powder Metallurgy Association (EPMA)
ISBN (Print)9781899072088
Publication statusPublished - 2009 Jan 1
EventEuropean International Powder Metallurgy Congress and Exhibition, Euro PM 2009 - Copenhagen, Denmark
Duration: 2009 Oct 122009 Oct 14

Publication series

NameProceedings of the Euro International Powder Metallurgy Congress and Exhibition, Euro PM 2009
Volume2

Other

OtherEuropean International Powder Metallurgy Congress and Exhibition, Euro PM 2009
CountryDenmark
CityCopenhagen
Period09/10/1209/10/14

ASJC Scopus subject areas

  • Mechanics of Materials
  • Ceramics and Composites
  • Materials Chemistry
  • Metals and Alloys
  • Condensed Matter Physics

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