Natural-inspired tooth replacement: design and strategies

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Corrosion behaviour of PEEK or β-TCP-impregnated Ti6Al4V SLM structures targeting biomedical applications

Publication . Costa, M.M.; Dantas, T.A.; Bartolomeu, F.; Alves, N.; Silva, F.S.; Miranda, G.; Toptan, F.

Ti6Al4V cellular structures were produced by selective laser melting (SLM) and then filled either with beta-tricalcium phosphate (β-TCP) or PEEK (poly-ether-ether-ketone) through powder metallurgy techniques, to improve osteoconductivity and wear resistance. The corrosion behavior of these structures was explored considering its importance for the long-term performance of implants. Results revealed that the incorporation of open cellular pores induced higher electrochemical kinetics when being compared with dense structures. The impregnation of β-TCP and PEEK led to the creation of voids or gaps between the metallic matrix and the impregnated material which also influenced the corrosion behavior of the cellular structures.

2019-12Artigo científico

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Entidade financiadora

Fundação para a Ciência e a Tecnologia

Número da atribuição

PD/BD/140202/2018