### Key Points: - A newly developed copper-tantalum-lithium alloy exhibits strength comparable to high-temperature nickel superalloys, with a yield strength around 1000 MPa. - The alloy’s composition is 96.5% Cu, 3% Ta, and 0.5% Li, where tantalum's insolubility in copper allows for a unique microstructural arrangement when lithium is added. - This results in the formation of Cu3Li particles with tantalum shells, enhancing the material's properties. - Despite being weaker than copper-beryllium alloys, the new material offers significant cost benefits as tantalum is cheaper than beryllium, potentially allowing applications in scenarios where antimicrobial properties of copper are advantageous. - Questions about the material's cost-effectiveness compared to stainless steel and its overall performance metrics remain subject to speculation. - The research highlights the alloy's durability under thermal and mechanical stress, maintaining structural integrity near its melting point, which opens opportunities for various high-performance applications.