Additive manufacturing of biomimetic Titanium-Tantalumlattices for biomedical implant applications

Nicolas Soro; Erin G. Brodie; Abdalla Abdal-hay; Aya Q. Alali; Damon Kent; Matthew S Dargusch

doi:10.1016/j.matdes.2022.110688

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Additive manufacturing of biomimetic Titanium-Tantalumlattices for biomedical implant applications

Journal article

Open access

Peer reviewed

Additive manufacturing of biomimetic Titanium-Tantalumlattices for biomedical implant applications

Nicolas Soro, Erin G. Brodie, Abdalla Abdal-hay, Aya Q. Alali, Damon Kent and Matthew S Dargusch

Materials & Design, Vol.218, pp.1-14

2022

DOI: https://doi.org/10.1016/j.matdes.2022.110688

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Abstract

Laser powder-bed fusion

Titanium

Tantalum

Biomedical implants

Lattices

Although additively manufactured titanium-tantalum alloys can offer unique mechanical and biological advantages for implant applications, their use in conjunction with engineered lattice architectures is yet to be explored. In the present study, the promising gyroid, diamond and Schwarz primitive minimal surfaces are used for the design of 3D lattices for biomedical implants. The lattices are fabricated using laser powder-bed fusion and a blend of elemental titanium-tantalum powder. The processability, compressive mechanical properties and in vitro biological properties of the dense and lattice samples are assessed via non-destructive and destructive characterization methods. The topologies from the designed structures are retained through processing and the compressive tests results show that the strength-to-modulus ratios are comparable to the conventional Ti-6Al-4 V alloy. However, the higher ductility and absence of toxic elements make the Ti-25Ta lattices a more favourable option for a new generation of implants. Compared to conventional lattices, the designs presented here also show advantageous mechanical properties for use in bone implants with higher elastic admissible strains. The in vitro cell cultures confirm the high biocompatibility of the material and improved biological response of the interconnected lattices over dense material.

Details

Title: Additive manufacturing of biomimetic Titanium-Tantalumlattices for biomedical implant applications
Authors: Nicolas Soro (Corresponding Author) - The University of Queensland
Erin G. Brodie - Monash University
Abdalla Abdal-hay - The University of Queensland
Aya Q. Alali - The University of Queensland
Damon Kent - The University of Queensland
Matthew S Dargusch - The University of Queensland
Publication details: Materials & Design, Vol.218, pp.1-14
Publisher: Elsevier Ltd
Date published: 2022
DOI: 10.1016/j.matdes.2022.110688
ISSN: 1873-4197
Copyright note: (c) 2022 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Grants: ARC Research Hub for Advanced Manufacturing of Medical Devices, IH150100024, Australian Research Council (Australia, Canberra) - ARC
ARC Research Hub for Transforming Australia’s Manufacturing Industry through High Value Additive Manufacturing, IH130100008, Australian Research Council (Australia, Canberra) - ARC
Organisation Unit: School of Science, Technology and Engineering
Language: English
Record Identifier: 991253099102621
Output Type: Journal article

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Collaboration types: Domestic collaboration
Web Of Science research areas: Materials Science, Multidisciplinary