Development of tantalum scaffold for orthopedic applications produced by space-holder method

E. Rupérez, J. M. Manero, K. Riccardi, Yuping Li, C. Aparicio, F. J. Gil

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

In the present study, production of tantalum porous scaffolds using the space holder technique was performed. The effect of size and content of sodium chloride particles, used as space holder, as well as compacting pressure on foam structure and mechanical properties have been investigated. The morphological characterization was carried out by means of scanning electron microscopy (SEM), mercury intrusion porosimetry (MIP) and micro-CT technique. The relationship between the elastic modulus and yield strength of the tantalum porous scaffold and the pore structure was evaluated. Space holder technique allows obtaining tantalum open-cell structure (70% of porosity) and modulus of elasticity similar to cancellous bone, with reproducible processability into three-dimensional structures and reasonable manufacturing costs.

Original languageEnglish (US)
Pages (from-to)112-119
Number of pages8
JournalMaterials and Design
Volume83
DOIs
StatePublished - Oct 15 2015

Bibliographical note

Funding Information:
This study was supported by the Ministry of Science and Innovation (MICINN) and the Ministry of Economy and Competitiveness (MINECO) of the Spanish Government (Projects MAT2009-12547).

Publisher Copyright:
© 2015 Elsevier Ltd.

Keywords

  • Porous tantalum
  • Powder metallurgy
  • Space holder method
  • Tissue engineering

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