| Abstract Scope |
Promising proofs-of-concept have been demonstrated for dislocation-tuned functional and mechanical properties, revealing a new research front for dislocations in ceramics for a wide range of potential applications. However, it remains a great challenge to mechanically tailor dislocations in ceramics due to their brittleness. To address this pressing bottleneck, this presentation discusses the mechanics-based dislocation engineering in ceramics by examining the three fundamental factors of dislocation nucleation, multiplication, and motion. Successful experimental approaches to tune dislocation density and plastic zone size on single-crystal strontium titanate are demonstrated. Some open questions and challenges for engineering dislocations in ceramics are discussed. |