A new copper-tantalum-lithium alloy has been developed with exceptional thermal stability and high-temperature mechanical properties.The alloy combines copper's heat and electrical conductivity with the strength and durability of nickel-based superalloys.The material remains incredibly strong even at high temperatures and holds its shape under long-term thermal exposure and mechanical stress.The alloy's nanostructure allows it to resist deformation and offers potential applications in aerospace, defense, and industrial sectors.