| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
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Spatially Tailored Materials: Processing-Structure-Properties
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| Presentation Title |
The topology of nano- and mesoporous metal networks and its impact on structural-mechanical behavior from in-situ xray nanotomography experiments |
| Author(s) |
Markus Ziehmer, Stefan Berger, Yijuan Wu, Kate L.M. Elder, Jin Zhang, Tiberiu Stan, Xianghui Xiao, Jürgen Markmann, Erica T. Lilleodden, Peter W. Voorhees |
| On-Site Speaker (Planned) |
Markus Ziehmer |
| Abstract Scope |
Recent advances in fabrication of nano- and mesoporous metals based on dealloying techniques added new interconnected network structures that already proved their applicability as both functional and structural materials. It is often emphasized that their microstructural length scales are tunable, which in such structures is an interrelated process of geometrical, morphological and topological aspects. Understanding the network topology and its evolution under external forces is of crucial importance, in particular for structural properties. For an improved analysis we investigated the network evolution under different external loads using in-situ xray nanotomography. Thermal coarsening of nanoporous gold enabled to track the evolution of the network topology during structural coarsening, especially topological transitions. Microcompression of mesoporous titanium allowed for a statistical analysis of the local topologies of the fundamental network ring elements and the response of different ring size classes on the mechanical load, thus identifying the load-bearing structural elements. |
| Proceedings Inclusion? |
Planned: |