A high-temperature nanostructured Cu-Ta-Li alloy with complexion-stabilized precipitates

Authors: B. C. Hornbuckle, J. A. Smeltzer, S. Sharma, S. Nagar, C. J. Marvel, P. R. Cantwell, M. P. Harmer, K. Solanki, K. A. Darling

Published: 2025-03-27

DOI: 10.1126/science.adr0299

Source: Full article


Abstract

We present a bulk nanocrystalline copper alloy that can operate at near-melting temperatures with minimal coarsening and creep deformation. The thermal stability of the Cu-3Ta-0.5Li atomic % (at %) alloy is attributed to coherent, ordered L1