Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/51363
Título: | Design and evaluation of PM Ti surfaces modified by colloidal techniques and diffusion processes for biomedical applications |
Autor(es): | Gordo, E. Ureña, J. Toptan, Fatih Pinto, A. M. P. Ferrari, B. Tsipas, S. Jiménez-Morales, A. |
Palavras-chave: | Titanium Surface treatments Mo Nb Diffusion Colloidal techniques Powder Technology Tribocorrosion |
Data: | 2016 |
Editora: | European Powder Metallurgy Association (EPMA) |
Resumo(s): | The aim of this work was the modification of the composition and surface microstructure of powder metallurgy titanium to improve the wear resistance and reduce the elastic modulus while maintaining the corrosion behavior, characteristics needed for biomedical applications. For this purpose, Mo and Nb coatings were produced by colloidal techniques. Stable aqueous suspensions were prepared from micro-sized powder of Mo and Nb particles, deposited onto the powder metallurgy titanium substrates (green or sintered). After a heat treatment to promote the diffusion and the consolidation of the layers, microstructural changes were obtained. In the case of green substrates, the co-sintering process provides a diffusion depth of 85-100 micron. In the as-sintered case, a uniform depth of 40-65 microns was reached. The surfaces were characterised by micro-hardness, corrosion and tribocorrosion testing, and the results showed that hardened surfaces presented lower tendency to corrosion both under static conditions and under sliding. |
Tipo: | Artigo em ata de conferência |
URI: | https://hdl.handle.net/1822/51363 |
ISBN: | 9781899072484 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | DEM - Publicações em actas de encontros científicos / Papers in conference proceedings |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Design and Evaluation of PM Ti Surfaces Modified by Colloidal Techniques and Diffusion Processes for Biomedical Applications.pdf | 640,03 kB | Adobe PDF | Ver/Abrir |