Journal of Materials Science: Materials in Medicine

, 19:3489

First online:

Fabrication of porous titanium scaffold materials by a fugitive filler method

  • T. F. HongAffiliated withDepartment of Materials Engineering, National Pingtung University of Science and Technology
  • , Z. X. GuoAffiliated withDepartment of Chemistry, University Colloge London Email author 
  • , R. YangAffiliated withInstitute of Metal Research, Chinese Academy of Sciences

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A clean powder metallurgy route was developed here to produce Ti foams, using a fugitive polymeric filler, polypropylene carbonate (PPC), to create porosities in a metal-polymer compact at the pre-processing stage. The as-produced foams were studied by scanning electron microscopy (SEM), LECO combustion analyses and X-ray diffraction (XRD). Compression tests were performed to assess their mechanical properties. The results show that titanium foams with open pores can be successfully produced by the method. The compressive strength and modulus of the foams decrease with an increasing level of porosity and can be tailored to those of the human bones. After alkali treatment and soaking in a simulated body fluid (SBF) for 3 days, a thin apatite layer was formed along the Ti foam surfaces, which provides favourable bioactive conditions for bone bonding and growth.