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Meeting 2016 TMS Annual Meeting & Exhibition
Symposium Magnesium-based Biodegradable Implants
Presentation Title Magnesium Powder Injection Molding (MIM) of Orthopedic Implants for Biomedical Applications
Author(s) Martin Wolff, Johannes Schaper, Marc Rene Suckert, Michael Dahms, Thomas Ebel, Regine Willumeit-Römer, Thomas Klassen
On-Site Speaker (Planned) Martin Wolff
Abstract Scope MIM possesses high potential for the economic near net shape mass production of small sized and complex shaped parts. The motivation for launching magnesium into the MIM processing chain for the manufacturing of biodegradable medical implants is related to its compatibility with human bone and its degradation to nontoxic matter. It has been recognized that the load bearing capacity of MIM-magnesium parts is superior to that of biodegradable polymeric ones. However, the choice of appropriate polymeric binder components and alloying elements enabling defect free injection molding and sintering is the major challenge. This study comprised the full processing chain for MIM of Mg-Ca alloys to achieve UTS up to 141 MPa at 73 MPa TYS, 7 % elongation at fracture and 38 GPa Young´s modulus. To achieve the latter material properties, a thermal debinding study was performed to determine optimal furnace and atmosphere conditions, correct temperature, heating rates, time, and pressure.
Proceedings Inclusion? Planned: A combination print-CD volume


Absorbable Filament Technologies: Wire-drawing to Enable Next-generation Medical Devices
Appropriate Corrosion-FatigueTesting of Magnesium Alloys for Temporary Bio-implant Applications
Computer Simulation of the Mechanical Behaviour of Implanted Biodegradable Stents in a Remodelling Artery
Degradation of MgF2-coated and Uncoated MgNd2 Specimens in Contact with Nasal Mucosa
Fabrication, Testing and Performance of Rare Earth-containing Magnesium Biodegradable Metals
In Vitro Corrosion and Cytocompatibility Properties of Mg-2Gd-X(Ag, Ca) Alloys
Influence of Precipitation Hardening in Mg-Y-Nd on Mechanical and Corrosion Properties
Magnesium-based Compression Screws
Magnesium Powder Injection Molding (MIM) of Orthopedic Implants for Biomedical Applications
Manufacturing of Osteosynthesis Systems Made of Magnesium Alloy AZ91
Monitoring Biodegradation of Magnesium Implants with Sensors
Plasma Surface Modification of Magnesium-Based and Related Biomaterials
Standardized Guidance for the Preclinical Evaluation of Absorbable Metal Implants
The Industrial Challenges of Manufacturing Bioabsorbable Magnesium
Understanding Corrosion-assisted Cracking of Magnesium Alloys for Bioimplant Applications

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