|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Pan American Materials Congress: Materials for Transportation and Lightweighting
||PAN-31: Effect of Porosity and Bimodal Microstructure of Ti-based Alloy Foams Consolidated by Hot Pressing
||Christopher Salvo, Claudio Aguilar, Sheila Lascano, R.V. Mangalaraja
|On-Site Speaker (Planned)
Nowadays, Ti based alloys are widely used as bio-implant materials because their excellent properties, but their Young`s modulus values are higher than the human bones. This work reports the synthesis of Ti-30Nb-13Ta-2Mn foams using NaCl as space holder (0, 20 and 30% vol. added) and bimodal microstructure. Hot pressing was used to consolidate the green samples under 30 MPa at 780C for 30 minutes. Further, the foams were characterized by optical microscopy, SEM and XRD. The elastic modulus of the foam was measured as 15 GPa, and the values were almost equal to the values predicted using theoretical models. Foams showed non-homogeneous distribution of macropores and suitable characteristics to promote cell adhesion and bone growth. The sizes of macropores produced by the space holder were between 200 and 400 um and deformation of NaCl particles was clearly visible. All the foams with bimodal structure showed a high percentage of porosity.
||Planned: Stand-alone book in which only your symposium’s papers would appear (indicate title in comments section below)