Nanoporous transition metals for strength and function - towards a cost-efficient materials base, HCJRG-315 Institut: | M-22 | Projektleitung: | Jörg Weißmüller | Mitarbeiter/innen: | Benedikt Roschning
| Laufzeit: | 01.05.2015 — 30.04.2018 | Finanzierung: | Helmholtz-Gemeinschaft Deutscher Forschungszentren e.V.
| Kooperationen: | Helmholtz-Zentrum Geesthacht (HZG) Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences
| Internationalisierung: | China |
Tailor-made hybrid materials systems that combine structural light-weight alloys and polymers while using the high strength of nanoscale reinforcing elements form an emerging research focus within the topic "Hybrid and Functionalized Structures" of the research programme “Advanced Engineering Materials” at Helmholtz-Zentrum Geesthacht. Emphasis is on mechanical performance at low weight, as an inherent challenge in energy-efficient mobile applications. The key materials component is formed by nanostructured metallic networks that can be prepared in macroscopic volumes through the controlled corrosion of alloys. Synthesis and properties of such ‘nanoporous metals’ represent a research focus at Institute of Metal Research, CAS and at Hamburg University of Technology. Model experiments using nanoporous Au and Au-Pt alloys, in some instances infiltrated with epoxy resin, have established attractive mechanical and functional behavior. A key challenge on the way to application is to transfer these results to more cost-efficient and light-weight metals. This requires corrosion processes matched to less noble metals such as Cu, Ti or even stainless steel, and that produce high quality nanoporous materials with small and uniform structure size and no defects. Aqueous corrosion will not in all instances be appropriate, and ionic liquids, molten salts or even metal melts may emerge as the corrosion media of choice. Based on a strong track record of cooperation, the applicants propose to join forces in an effort to develop and establish novel synthesis protocols for cost-efficient and lightweight nanoporous transition metals. Stichworte- Flüssigmetallentlegierung
- komposite Materialien
- Leichtbau
- Materialverhalten
- Nano- und submikrokristalline Materialie
- poröses Material
Publikationen- Artem V Okulov, Alexey Volegov, Jörg Weissmüller, Jürgen Markmann, Ilya Okulov : Dealloying-Based Metal-Polymer Composites for Biomedical Applications. Scripta Materialia 146 (2018) 290–294., 146 (2018) ( 146 (2018) ): S. 290–294., März 2018. , DOI: 10.1016/j.scriptamat.2017.12.022, https://doi.org/10.1016/j.scriptamat.2017.12.022
- I.V. Okulov, J. Weissmueller, J. Markmann: Dealloying-based interpenetrating-phase nanocomposites matching the elastic behavior of human bone. Scientific Reports , 2017 (7)(20), February 2017. , DOI: 10.1038/s41598-017-00048-4
- Haijun Jin, Jörg Weissmüller, Diana Farkas: Mechanical Response of Nanoporous Metals: A Story of Size, Surface Stress, and Severed Struts . MRS Bulletin 43 (2018) 35 – 42, 43(2018)(43): S. 35 – 42, Januar 2018. , DOI: 10.1557/mrs.2017.302, d Diana Farkas (a3) https://doi.org/10.1557/mrs.2017.302
- Lukas Lührs, Jörg Weissmüller : Nanoporous Copper-Nickel – Macroscopic Bodies of a Strong and Deformable Nanoporous Base Metal by Dealloying. Scripta Materialia, 2018( 155 (2018) ): S. 119-123. , Oktober 2018. , DOI: 0.1016/j.scriptamat.2018.06.025, https://www.sciencedirect.com/science/article/pii/S1359646218303798
- Ilya V. Okulov, Sviatlana V. Lamaka, Takeshi Wada, Kunio Yubuta, Mikhail Larionovich Zheludkevich, Jörg Weissmüller, Jürgen Markmann, Hidemi Kato: Nanoporous Magnesium. Nano Research, Nano Research 11 (2018) ( 11 ): S. 6428–6435 , August 2018. , DOI: 10.1007/s12274-018-2167-9, https://doi.org/10.1007/s12274-018-2167-9
- Ilya Okulov, Artem V Okulov, Ivan V Soldatov, Berengere Luthringer, Regine Willumeit-Römer, Takeshi Wada, Hidemi Kato, Jörg Weissmüller, Jürgen Markmann : Open Porous Dealloying-Based Biomaterials as a Novel Biomaterial Platform. Materials Science & Engineering C 88 (2018) 95 – 103. , 2018 C88( C 88 (2018)): S. 95 – 103. , Juli 2018. , DOI: 10.1016/j.msec.2018.03.008, https://doi.org/10.1016/j.msec.2018.03.008
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