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

Shoichi Kikuchi, Kazutoshi Katahira, Jun Komotori

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)341-348
Number of pages8
JournalNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume82
Issue number9
DOIs
Publication statusPublished - 2018 Jan 1

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Keywords

  • Biomaterial
  • Metal/ceramics composite
  • Spark plasma sintering
  • Titanium
  • Zirconia

ASJC Scopus subject areas

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

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