University of Central Florida Office of Research & Commercialization, Orlando, FL, US
This technology is a novel process for producing magnesium matrix nanocomposites reinforced with high-volume fraction nano-scaled ceramic particles and a unique bi-model structure. Additionally, the process can be utilized for other combinations of metals and ceramic materials. Synthesis of this material is performed using the following steps. First, the appropriately selected micrometer-sized flake metal powders for the metal alloy matrix are chosen, along with the nanometer sized ceramic powders, which act as the reinforcements. The powdered mixtures are then milled for a controlled period of time to embed the ceramic nanoparticles into the flake metal powders, with added surfactants. This creates the unique bi-model structured nanoparticles, comprised of a metal core and ceramic-reinforced metal shell. Finally, the powdered material is sintered into a bulk form, which can be formed into the end product or machined into specific shapes. The nanocomposite exhibits higher stiffness and yield strength with retained ductility. The yield strength of Mg-5vol.%SiC nanocomposite approaches 290 MPa, and is twice as strong as pure Mg as well as having 3.5 times the yield strength of pure Mg. As the volume fraction of ceramic nanoparticles increases, the ductility of the nanocomposite is retained without further sacrifice.
Primary Application Area: Materials, Chemical
Technology Development Status: Prototype
Technology Readiness Level: TRL 3
Organization Type: Academic/Gov Lab
Showcase Booth #: 427
GOVT/EXTERNAL FUNDING SOURCES