Formation of titanium/zirconia based biomaterial fabricated by spark plasma sintering

Shoichi Kikuchi, Kazutoshi Katahira, Jun Komotori

研究成果: Article査読

5 被引用数 (Scopus)

抄録

New biomaterials were fabricated by sintering powders of commercially pure titanium(CP-Ti)and partially-stabilized zirconia (PSZ). The Ti/PSZ composites with different mass fraction of PSZ were consolidated by spark plasma sintering(SPS)at 1173 K and 1373 K. The microstructures of composites were characterized using a scanning electron microscope(SEM), an energy dispersive X-ray spectrometer(EDS), X-ray photoelectron spectroscopy(XPS)and an X-ray diffraction(XRD). Vickers hardness tests, reciprocating wear tests, fracture toughness measurements, cell culture tests and electrochemical polarization tests were conducted to discuss their capability for biomaterials as a slide member. The composites with high wear resistance were achieved by sintering at 1373 K with high mass fraction of PSZ; however, fracture toughness showed low value. In contrast, the composites sintered at relatively low temperature of 1173 K with low mass fraction of PSZ showed high wear resistance and fracture toughness. Furthermore, electrochemical characteristics and biocompatibility of composites sintered at 1173 K tended to improve as the mass fraction of PSZ decreased.

本文言語English
ページ(範囲)341-348
ページ数8
ジャーナルNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
82
9
DOI
出版ステータスPublished - 2018

ASJC Scopus subject areas

  • 凝縮系物理学
  • 材料力学
  • 金属および合金
  • 材料化学

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