Improving mechanical properties and antibacterial response of a/b ternary Ti-Ta alloy foams for biomedical uses

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dc.contributor.authorAguilar, C.
dc.contributor.authorMartin, F. San
dc.contributor.authorMartinez, C.
dc.contributor.authorCamara, B.
dc.contributor.authorClaverias, F.
dc.contributor.authorUndabarrena, A.
dc.contributor.authorSancy, M.
dc.contributor.authorSalinas, V.
dc.contributor.authorMunoz, L.
dc.date.accessioned2025-01-20T20:09:29Z
dc.date.available2025-01-20T20:09:29Z
dc.date.issued2023
dc.description.abstractThis study investigates the potential of Ti-Ta-Sn alloys for biomedical applications due to their excellent mechanical properties and biocompatibility, with a particular focus on their use in trabecular bone replacement. This work aims to analyze the influence that of Sn has on the mechanical properties and antibacterial response of a -b ternary Ti-13Ta-xSn (x:3, 6, 9, and 12 at.%) alloy foams. The Ti-based alloys were designed considering three aspects; (i) final microstructure, (ii) alloying element types, and (iii) thermodynamics while using MAAT and ThermoCalc software. The alloys were obtained by mechanical alloying, with used milling times being 30 h for Ti-13Ta-3Sn, 10 h for Ti-13Ta-6Sn, 10 h for Ti-13Ta-9Sn, and 15 h for Ti-13Ta-12Sn. The foams were obtained using NaCl as the space holder (50 v/v% porosity) and consolidated by a hot pressing method at 780 & DEG;C for 30 min, applying a load of 40 MPa. Both the Staphylococcus aureus ATCC 6538 strain and Escherichia coli ATCC 8739 strain were used to evaluate the antibacterial responses of Ti-based alloy foams. The Ti-based alloy foams were composed mostly by a mix of a and b-phases. The metallic foams exhibited relative homogeneous pore distribution with a size between 100 and 450 mm and having an average porosity slightly higher than 50%. The samples showed elastic modulus values be-tween 1 and 2 GPa, compressive yield strengths over 150 MPa, and microhardness over 450 HV. All Ti-based alloy foams showed no antibacterial activity nor bacterial adhesion, indicating that there is bacterial adhesion inhibition.& COPY; 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.jmrt.2023.05.115
dc.identifier.eissn2214-0697
dc.identifier.issn2238-7854
dc.identifier.urihttps://doi.org/10.1016/j.jmrt.2023.05.115
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/92001
dc.identifier.wosidWOS:001021902700001
dc.language.isoen
dc.pagina.final8753
dc.pagina.inicio8735
dc.revistaJournal of materials research and technology-jmr&t
dc.rightsacceso restringido
dc.subjectHardness
dc.subjectX-ray analysis
dc.subjectTitanium alloys
dc.subjectPowder methods
dc.titleImproving mechanical properties and antibacterial response of a/b ternary Ti-Ta alloy foams for biomedical uses
dc.typeartículo
dc.volumen24
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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