About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
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| Symposium
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Enhancing Materials by Changing Surfaces and Interfaces: An EPD/FMD/LMD/SMD Symposium in Honor of Jaroslaw Drelich
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| Presentation Title |
Fe-Mo DFT® wire composites: ensuring safety in thin absorbable devices through engineered interfaces. |
| Author(s) |
Adam Griebel, Jeremy E Schaffer |
| On-Site Speaker (Planned) |
Adam Griebel |
| Abstract Scope |
Neurovascular implants such as flow diverters rely on extremely fine wires—typically 20 to 30 microns in diameter—braided into self-expanding structures. Developing absorbable versions of these devices may offer significant clinical advantages, including clearer long-term imaging and more straightforward reintervention. However, selecting a suitable material is complex, requiring careful balancing of mechanical properties (strength, elasticity), radiopacity for visibility under fluoroscopy, biocompatibility, and a predictable, appropriate corrosion profile. Common absorbable metal systems—including magnesium, zinc, iron, and molybdenum—each offer varying tradeoffs in these areas. This presentation highlights recent work with a patented FeMnN-DFT®-Mo composite wire system, in which 25-50 micron wires have achieved strengths exceeding 2.7 GPa. The design enables programmatic, multi-phase degradation driven by a galvanic interface formed between the FeMnN shell and the molybdenum core. This system offers a promising platform for thin absorbable medical devices requiring high strength, elasticity, and predictable corrosion. |
| Proceedings Inclusion? |
Planned: Stand-alone book in which only your symposium’s papers would appear |
| Keywords |
Biomaterials, Surface Modification and Coatings, Process Technology |