RMIT University researchers develop a strong metamaterial from titanium alloy using 3D printing.
The material's innovative lattice structure offers an unprecedented combination of strength and lightness.
Research Breakthrough: Stronger Titanium Alloy Metamaterial Fabricated with 3D Printing.
Researchers at Australia-based RMIT University have developed a novel metamaterial made from common titanium alloy. This material has the potential to revolutionize the aerospace industry with its extraordinary strength.
The inspiration for this innovative material comes from nature. Researchers drew inspiration from the unique structure of plants such as the Victoria water lily and the hard organ pipe coral to design lightweight yet robust lattice structures.
The main challenge was to replicate these hollow "cellular structures" in metals. The research team developed a complex lattice structure with hollow tubes and thin bands inside to evenly distribute stress and avoid weak points.
Utilizing 3D printing technology, researchers were able to fabricate a titanium lattice cube that is 50% stronger than a conventional magnesium alloy of similar density. The unique double lattice structure minimizes stress concentrations and enhances the material's toughness.
The developed metamaterial shows promising properties for applications in aerospace and high-temperature environments such as firefighting drones. Although the technology is not yet widely available, it could find applications in various industries once further optimized.
