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Article


Title

Biomedical Ti-Nb-Zr Foams Prepared by Means of Thermal Dealloying Process and Electrochemical Modification

Authors

[ 1 ] Instytut Inżynierii Materiałowej, Wydział Inżynierii Materiałowej i Fizyki Technicznej, Politechnika Poznańska | [ 2 ] Instytut Technologii Mechanicznej, Wydział Inżynierii Mechanicznej, Politechnika Poznańska | [ P ] employee

Scientific discipline (Law 2.0)

[2.7] Materials engineering
[2.8] Mechanical engineering

Year of publication

2022

Published in

Materials

Journal year: 2022 | Journal volume: vol. 15 | Journal number: iss. 6

Article type

scientific article

Publication language

english

Keywords
EN
  • titanium-based metallic foams
  • mechanical alloying
  • thermal dealloying
Abstract

EN The paper presents results of preparation and modification of Ti20Nb5Zr foams by a thermal dealloying method followed by electrochemical modification. The first step of this study was the preparation of Ti20Nb5Zr30Mg nanopowder using mechanical alloying (MA). The second was forming green compacts by cold pressing and then sintering with magnesium dealloyed from the structure, which resulted in pores formation. The next step was surface modification by electrochemical etching and silver nanoparticle deposition. Porosity, morphology, mechanical properties as well as biocompatibility and antibacterial behavior were investigated. Titanium foam porosity up to approximately 60% and wide pore size distribution were successfully prepared. The new materials have shown positive behavior in the MTT assay as well as antibacterial properties. These results confirmed great potential for thermal dealloying in preparation of porous structures.

Date of online publication

14.03.2022

Pages (from - to)

2130 - 1 - 2130 - 15

DOI

10.3390/ma15062130

URL

https://www.mdpi.com/1996-1944/15/6/2130

Comments

Article Number: 2130

License type

CC BY (attribution alone)

Open Access Mode

open journal

Open Access Text Version

final published version

Date of Open Access to the publication

at the time of publication

Points of MNiSW / journal

140.0

Impact Factor

3.623 [List 2020]

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