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 language||English (US)|
|Number of pages||8|
|Journal||Materials and Design|
|State||Published - Oct 15 2015|
Bibliographical noteFunding 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).
© 2015 Elsevier Ltd.
- Porous tantalum
- Powder metallurgy
- Space holder method
- Tissue engineering