Ti₄₀Zr₁₀Cu₃₆Pd₁₄ bulk metallic glass as oral implant material

Autor(en)

Amir Rezvan, Elham Sharifikolouei, Viktor Soprunyuk, Wilfried Schranz, Juraj Todt, Alice Lassnig, Christoph Gammer, Nikolaus August Sifferlinger, Atacan Asci, Ilya Okulov, Sandra Schlögl, Jozef Keckes, Ziba Najmi, Andrea Cochis, Alessandro Calogero Scalia, Lia Rimondini, Baran Sarac, Jürgen Eckert

Abstrakt

The application of highly biocompatible advanced materials leads to fewer complications and more successful medical treatments. This study proposes Ti40Zr10Cu36Pd14 bulk metallic glass (BMG) as an oral implant material and provides insights into its possible processing routes, where high-temperature compression molding via an optimized process is adopted to both evaluate the thermoplastic net-shaping kinetics and tune the specific properties of the alloy. We present processed BMGs and BMG composites of the same composition with improved thermomechanical stability, from which high strength retention at temperatures, compared to the cast glass, by above 100 K higher is registered via dynamic mechanical analysis. ∼100 nm thin surface layers comprised of Ti, Cu, and Zr oxides form at the surface of the alloys, as identified by high-resolution transmission microscopy. Also, ∼4 orders of magnitude lower passivation current density along with ∼2 orders of magnitude lower corrosion current density of the processed glass compared to the values of the as-cast state confirms an extremely high stability in a 0.9 wt% saline environment which can be linked to surface hydrophobicity. Cytocompatibility analysis conducted by seeding human gingival fibroblast cells directly onto the thermoplastically formed Ti40Zr10Cu36Pd14 BMG reveals no adverse effect on cytocompatibility. On the other hand, the formation of a nanoscale oxide layer on the thermoplastically formed samples leads to significantly higher cell attachments on the surface.

Organisation(en)

Physik Funktioneller Materialien

Externe Organisation(en)

Österreichische Akademie der Wissenschaften (ÖAW), Montanuniversität Leoben, Politecnico di Torino, Leibniz-Institut für Werkstofforientierte Technologien (IWT), Jacobs Universität Bremen, Polymer Competence Center Leoben GmbH, Università Del Piemonte Orientale

Journal

Materials and Design

Band

233

Anzahl der Seiten

10

ISSN

0264-1275

DOI

https://doi.org/10.1016/j.matdes.2023.112256

Publikationsdatum

09-2023

Peer-reviewed

Ja

ÖFOS 2012

103018 Materialphysik

Schlagwörter

ASJC Scopus Sachgebiete

Allgemeine Materialwissenschaften, Mechanics of Materials, Mechanical Engineering

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/79493be8-b3d6-4c4b-a7ee-0b5e431c5bb5