| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Local Chemical Ordering and Its Impact on Mechanical Behaviors, Radiation Damage, and Corrosion
|
| Presentation Title |
Total Scattering: A Powerful Technique for the Characterisation of Local Structure |
| Author(s) |
Helen Y. Playford |
| On-Site Speaker (Planned) |
Helen Y. Playford |
| Abstract Scope |
Total scattering is an extension of traditional powder diffraction techniques that shifts the experimenter's view of a structure from average to local. Using high energy X-rays or neutrons, total scattering data are straightforward to measure and can be processed to obtain pair distribution functions (PDFs) - weighted histograms of pairwise interatomic distances. Through modelling, PDFs reveal structural information across multiple length scales, and since understanding short-range (dis)order and its interplay with long-range (bulk) structure is a critical part of elucidation of structure-property relationships, they can provide unique insight into the behaviour of functional materials. I will introduce the technique of total scattering and, using several case studies from my own work, demonstrate its power to reveal local structural information from a wide variety of materials. I hope to convince the audience to explore the technique further and to offer practical advice and inspiration for obtaining and analysing total scattering data. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Modeling and Simulation, Other |