Materials Design for Self-toughening Bulk Metallic Glasses

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Bulk metallic glasses are a new class of superior, high-performance structural material exhibiting ultra-high strength and high corrosion and wear resistance. However, they suffer from poor ductility and the inability to strain harden, which restricts their range of applications. A recent novel approach of embedding ductile shape-memory-alloy particles into the glassy matrix is a promising way to improve ductility. The project aims to identify the optimal structures of these particles and the corresponding process for improving the properties of copper-zirconium based metallic glasses. This project is expected to create ductile metallic glass composites attractive for engineering, medical, sporting, and military applications.