Regensburg 2025 – scientific programme

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MM: Fachverband Metall- und Materialphysik

MM 9: Poster

MM 9.28: Poster

Monday, March 17, 2025, 18:30–20:30, P1

Mesoporous Ti and TiCu network structures prepared by liquid metal dealloying — •Niklas Österle, Markus Ziehmer, Fabian Andorfer, and Carl E. Krill III — Institute of Functional Nanosystems, Ulm University, Germany

Metallic open-cell foams have emerged as promising functional and structural materials. The use of Ti and TiCu would extend the application of such foams into the medical field, as both materials are highly biocompatible, making them excellent choices for implants and prostheses. Combined with the porous structure of metallic foams, which facilitates the infiltration and adhesion of bone cells, the functionality and performance of prosthetic devices could be significantly improved.

In this work, we present the fabrication of mesoporous Ti and TiCu network structures via liquid metal dealloying. This technique enables the selective removal of Cu from TiCu precursor alloys within a Mg melt to form mesoporous structures. By varying the Mg-to-precursor mass ratio, we show that the chemical composition and morphology of the final network can be tailored. The network structure and morphology were investigated using 2D and 3D imaging, and EDS and XRD were employed for phase analysis. Various morphological structures can be linked to specific compounds in the TiCu phase diagram. Future investigations will focus on post-dealloying thermal coarsening.

Keywords: TiCu-Alloy; Mesoporous Metal Foam; Liquid Metal Dealloying