RT Conference Proceedings
T1 Design and evaluation Of PM Ti surfaces modified by colloidal techniques and diffusion processes for biomedical applications
T2 Design and evaluation of powder metallurgy titanium surfaces modified by colloidal techniques and diffusion  processes for biomedical applications
A1 Gordo Odériz, Elena
A1 Ureña Alcázar, Julia María
A1 Toptan, Faith
A1 Pinto, A.M.
A1 Ferrari, Begoña
A1 Tsipas, Sophia Alexandra
A1 Jiménez Morales, Antonia
AB 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.
PB European Powder Metallurgy Association (EPMA)
YR 2016
FD 2016-10
LK https://hdl.handle.net/10016/28050
UL https://hdl.handle.net/10016/28050
LA eng
NO Proceeding of: World PM2016 Congress (New materials and applications: Biomedical applications)
NO Funds were provided by Spanish Government (programme MINECO, ref. MAT2012-38650-C02-01), Regional Government of Madrid (programme MULTIMAT-CHALLENGE, ref. S2013/MIT-2862) and Institute of Álvaro Alonso Barba (IAAB) for the research stay in CMEMS-UMINHO (University of Minho).
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RD 1 jul. 2024