Fabrication of porous titanium scaffolds with high compressive strength using camphene-based freeze casting

Se Won Yook, Hyoun Ee Kim, Young Hag Koh

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

We herein report the fabrication of highly porous titanium (Ti) scaffolds with unusually high compressive strength by freezing a titanium hydride (TiH2)/camphene slurries at 42 °C. As the freezing time was increased from 1 to 7 days, the pore size obtained was increased significantly from 143 to 271 μm due to the continual overgrowth of camphene dendrites. However, interestingly, the formation of the micro-pores inside the Ti walls was suppressed at longer freezing time. This resulted in a significant increase in compressive strength up to 110 ± 17 MPa with a porosity of 64%. It is believed that this unusually high compressive strength with large interconnected pores makes this material suitable for applications as load-bearing parts.

Original languageEnglish
Pages (from-to)1502-1504
Number of pages3
JournalMaterials Letters
Volume63
Issue number17
DOIs
Publication statusPublished - 2009 Jul 15

Keywords

  • Freeze casting
  • Mechanical properties
  • Metals and alloys
  • Porosity
  • Titanium (Ti)

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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