About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Deformation Mechanisms, Microstructure Evolution, and Mechanical Properties of Nanoscale Materials
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Presentation Title |
Recent Advances in Bragg Coherent Diffraction for Nanoscale Imaging of Strain |
Author(s) |
Ross J. Harder |
On-Site Speaker (Planned) |
Ross J. Harder |
Abstract Scope |
Bragg Coherent Diffraction Imaging (BCDI) offers nanoscale resolution imaging with high sensitivity to distortions of the sample lattice. This talk will introduce the technique and describe recent improvements at the BCDI instrument of the Advanced Photon Source (APS) for imaging submicrometer scale crystalline objects. The new capability enables in-situ determination of crystallographic orientation via broadband Laue Diffraction Microscopy. With the full knowledge of the orientation of a specific sub-micrometer scale crystal one can measure coherent diffraction around multiple Bragg peaks of the lattice. With such data sets the full strain tensor of the sample can be imaged with tens of nanometer resolution at current generation synchrotrons. The pending upgrades to machines like the APS will significantly improve the capabilities of coherent techniques. We anticipate sub nanometer scale resolution imaging at the new instruments being developed. |
Proceedings Inclusion? |
Planned: |