Please use this identifier to cite or link to this item:
|Title:||Implant surface design for improved implant stability - a study on Ti6Al4V dense and cellular structures produced by selective laser melting|
Costa, M. M.
Gomes, J. R.
Abreu, C. S.
Silva, Filipe Samuel
Miranda, Maria Georgina Macedo
Selective laser melting
Implant surface design
Static and dinamic friction
Static and dynamic friction
|Citation:||Tribology International 129 (2019) 272-282|
|Abstract(s):||Focusing on implant surface design, aiming to improve implant primary stability, SLM technology was explored to produce dense and cellular structured Ti6Al4V specimens. The SLM specimens and also a commercial casted/forged Ti6Al4V group, were sandblasted and acid-etched to obtain a moderate surface roughness topography, typically used in implant manufacturing. Ti6Al4V-bone interaction and tribological performance were assessed by performing sliding tests aiming to replicate in some extension the insertion of a hip implant. The results shown a 24 and 32% higher kinetic friction coefficient values when comparing the cellular structures with the conventional casted/forged Ti6Al4V. These friction results together with a high amount of adhered bone are promising evidences of a higher efficiency of Ti6Al4V cellular structures for enhancing implant stability.|
|Access:||Restricted access (UMinho)|
|Appears in Collections:||DEM - Artigos em revistas de circulação internacional com arbitragem científica|
Files in This Item:
|F Bartolomeu at al_Trib Int 2019.pdf|
|6,25 MB||Adobe PDF||View/Open|