Using thermochemical treatment for facilitating apatite formation on Ti-Nb-Sn alloys.
In: Journal of Materials Science, Jg. 55 (2020-04-01), Heft 10, S. 4395-4407
Online
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Zugriff:
Titanium alloys are promising candidates for biomedical applications, and alloys based on the Ti-rich side of Ti-Nb-Sn system have presented material properties deserved for orthopedic implant applications. However, to our knowledge, the structural studies related to surface of these alloys are limited. Ti-18Nb-11Sn and Ti-35Nb-4Sn alloys were synthesized, and the influence of thermochemical treatment on the bioactivity was investigated. The alloys were synthesized by arc melting furnace and then were submitted to thermochemical treatment. X-ray diffraction and scanning electron micrograph analysis showed high crystallinity and maintenance of microstructure of the both alloys before and after thermochemical treatment. The results indicated that the Ti-18Nb-11Sn alloy was not demonstrated to be bioactive, while the Ti-35Nb-4Sn alloy slightly presented bioactivity, which increased after the thermochemical treatment. Meanwhile, the Ti-18Nb-11Sn alloy presented a low hardness value, making it not compatible with biomedical applications. However, the Ti-35Nb-4Sn alloy presented an acceptable hardness value for biomedical applications. We believe that the results reported herein suggest that the Ti-35Nb-4Sn alloy may be attractive for designing biomedical devices with improved performances toward the adhesion of apatite. [ABSTRACT FROM AUTHOR]
Titel: |
Using thermochemical treatment for facilitating apatite formation on Ti-Nb-Sn alloys.
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Autor/in / Beteiligte Person: | Rezende, Ana Carolina S. A. ; Wang, Jiale ; Li, Yanwen ; Carvalho, Alexandre Magnus Gomes ; de Barros Souza, Mauro V. ; Santos, Sauli ; Martins, A. ; da Silva Costa, Alex Matos ; Cremasco, Alessandra ; Landers, Richard ; Machado, Douglas ; Pancotti, Alexandre |
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Zeitschrift: | Journal of Materials Science, Jg. 55 (2020-04-01), Heft 10, S. 4395-4407 |
Veröffentlichung: | 2020 |
Medientyp: | academicJournal |
ISSN: | 0022-2461 (print) |
DOI: | 10.1007/s10853-019-04281-2 |
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