| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Data Science and Analytics for Materials Imaging and Quantification
|
| Presentation Title |
Quantitative X-ray Fluorescence Nanotomography |
| Author(s) |
Mingyuan Ge, Xiaojing Huang, Hanfei Yan, Wilson K. S. Chiu, Kyle S Brinkman, Yong S Chu |
| On-Site Speaker (Planned) |
Mingyuan Ge |
| Abstract Scope |
The Hard X-ray Nanoprobe at NSLS-II provides nanoscale 3D multi-modality imaging capability which is extremely useful in studying materials with complex internal structures. An important scientific problem is to investigate phase/grain boundaries of multi-component materials during or after material processing such as sintering, which generally has profound impacts on material’s property and functionality. X-ray fluorescent (XRF) nanotomgraphy is well-suited for the task. However, accurate quantification of XRF tomography is hampered by a well-known self-absorption problem. In this work, we present an approach to tackle the problem and apply to investigate the phase separation in a mixed ionic and electronic conducting ceramic material (Ce1-xGdxO2), a modal system generates broad interests in high temperature membranes and solid fuel cell applications. We will show how accurate absorption correction leads to a discovery of new phase in this system and providing key information in elucidating the structure evolution during the material synthesis process. |
| Proceedings Inclusion? |
Planned: |