Improved Deformability of Co-Free Medium Entropy Oxides by Controlled Entropy Destabilization.
High-entropy oxides (HEOs), such as (CoCuMgNiZn)O, are attractive structural ceramics due to their compositional complexity and single-phase stability. However, their intrinsic brittleness remains a major limitation. Here, we introduce a strategy termed as "controlled entropy destabilization" to activate defect-mediate...