Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/71426
Título: | Implant surface design for improved implant stability - a study on Ti6Al4V dense and cellular structures produced by selective laser melting |
Autor(es): | Bartolomeu, Flávio Costa, M. M. Gomes, J. R. Alves, N. Abreu, C. S. Silva, Filipe Samuel Miranda, Maria Georgina Macedo |
Palavras-chave: | Ti6Al4V Selective laser melting Implant surface design Static and dinamic friction Static and dynamic friction |
Data: | 2019 |
Editora: | Elsevier |
Revista: | Tribology International |
Citação: | Tribology International 129 (2019) 272-282 |
Resumo(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. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/71426 |
DOI: | 10.1016/j.triboint.2018.08.012 |
ISSN: | 0301-679X |
Versão da editora: | https://www.sciencedirect.com/science/article/pii/S0301679X18304006#! |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | DEM - Artigos em revistas de circulação internacional com arbitragem científica |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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F Bartolomeu at al_Trib Int 2019.pdf Acesso restrito! | 6,25 MB | Adobe PDF | Ver/Abrir |