About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Chemistry and Physics of Interfaces
|
| Presentation Title |
3D Compositional Analysis of Multi-Material Interfaces |
| Author(s) |
Ellen Williams, Peyton Willis, Jeffrey Williams |
| On-Site Speaker (Planned) |
Jeffrey Williams |
| Abstract Scope |
Because chemistry is one of the primary determinants of mechanical properties and performance, characterizing the chemistry of interfaces is critical. Determining which elements are present at the interface is just as important as measuring how those elements are distributed. Scanning Electron Microscopy with Energy Dispersive X-ray Spectroscopy (SEM-EDS) can create elemental maps but its detection capabilities are limited. SEM-EDS fails to detect trace elements and struggles to reliably measure important low-mass elements like lithium or carbon.
A new mass spectrometry technique combines Laser Ablation Laser Ionization with Time of Flight Mass Spectrometry (LALI-TOF-MS). LALI-TOF-MS creates millimeter-scale 3D elemental maps with spatial resolutions ranging from 5-150 microns and depth resolutions of 10s of nanometers. 3D elemental maps identify compositional changes, diffusion, segregation, and defects that can occur at multi-material interfaces. This work presents LALI-TOF-MS for various interfaces, including functional gradient material manufacturing, thin films, and complex interactions in battery electrodes. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Additive Manufacturing, Energy Conversion and Storage |