About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Defects and Interfaces: Modeling and Experiments
|
Presentation Title |
Atomic-scale Analysis of Chemistry at Lattice Defects |
Author(s) |
Dierk R. Raabe |
On-Site Speaker (Planned) |
Dierk R. Raabe |
Abstract Scope |
Interfaces, stacking faults and dislocations determine many properties of materials. They are not just structural imperfections but are often chemically decorated by solutes. The interplay of structure and chemistry at lattice defects can lead to a wide range of low-dimensional thermodynamic phenomena and manipulation opportunities including Suzuki and Cottrell effects, confined elemental partitioning, decomposition and low-dimensional transformations. All these effects alter the defects’ energy, mobility, structure, cohesion and transport properties.
The lecture presents and discusses recent progress which allows imaging of both structure and composition features at lattice defects by using correlative imaging through field ion microscopy, atom probe tomography and electron microscopy and gives thermodynamic interpretation using defect phase diagrams. |
Proceedings Inclusion? |
Planned: |
Keywords |
Thin Films and Interfaces, Computational Materials Science & Engineering, |