A researcher’s long quest leads to a smart composite breakthrough

Yu’s team has used an advanced manufacturing technique called additive friction stir deposition to embed functional ceramic particles into metal. The result? A strong, defect-free material that can phase-shift under stress to dissipate energy and, unlike normally brittle ceramics, can be 3D-printed in bulk with full density in the as-printed state, opening up possibilities for practical applications in defense, infrastructure, aerospace, and even high-performance sporting equipment.