Trace Y2O3-Mediated Interface Engineering Breaks the Conductivity–Wear Trade-Off in Spark-Plasma-Sintered Cu-Ni-Mn-Si Alloy
Achieving simultaneous enhancement of electrical conductivity and wear resistance in copper alloys remains challenging because conventional strengthening strategies often introduce additional electron-scattering sources and degrade electrical transport. In this work, a trace Y2O3-assisted interface-engineering strategy...