Tribocorrosion-resistant biofunctionalized Ti-Al2O3 composites

• Tipo: Artigo em Revista Científica Internacional
• Data: 2021

Autores

Sousa, L (Autor) Outra; Basilio, L (Autor) Outra; Alves, AC (Autor) FEUP; Toptan, F (Autor) Outra

Revista

Título: Surface and Coatings Technology

Vol. 420

ISSN: 0257-8972

Editora: Elsevier

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 0 Citações

Outras Informações

ID Authenticus: P-00V-1NS

DOI: 10.1016/j.surfcoat.2021.127329

Abstract (EN): Recent studies have shown that titanium matrix composites have potential for load-bearing biomedical implants due to their improved tribocorrosion behaviour compared to Ti and its alloys. However, lack of bioactivity remains as a concern due to bioinert Ti matrix and the fact that most reinforcement phases are also bioinert. In this work, biofunctionalized Ti-Al2O3 composites were produced by performing micro-arc oxidation treatment on the Ti-Al2O3 composites processed by hot-pressing technique. The overall microstructure consisted of Al2O3 particles dispersed within a biofunctionalized Ti matrix having a micro-porous structure rich in Ca and P elements. The corrosion behaviour of the composites was greatly improved after MAO treatment, whereas the tribocorrosion behaviour of the composites was also further improved after MAO treatment.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 9