| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Deformation and Transitions at Grain Boundaries VII
|
| Presentation Title |
G-8 (Invited): Novel X-ray Tools to Study Size Effects on Nanocrystalline Materials |
| Author(s) |
Anastasios Pateras, Jonathan Gigax, Kevin Baldwin, Wonsuk Cha, Ross Harder, Richard Sandberg, Saryu Fensin, Reeju Pokharel |
| On-Site Speaker (Planned) |
Anastasios Pateras |
| Abstract Scope |
Macroscopic properties of crystalline materials dramatically depend on nanoscale structure and dimensionality. Elastic constants are typically defined with respect to bulk while their values deviate and need to be measured explicitly in the case of two-dimensional materials or nanometer-sized objects. Particularly in really small dimensions, the crystallographic orientation plays an important role in the mechanical behavior of materials. Thus, in addition to measuring atomic displacements, the knowledge of the crystallographic orientation is needed. Laue diffraction with a large bandwidth x-ray (pink) beam allows determining the crystallographic orientations of crystals. Here we present a new movable monochromator, recently commissioned at the APS 34-ID-C beamline, that allows to easily switch from a pink x-ray beam to a monochromatic beam for Laue diffraction and Bragg coherent diffraction imaging, respectively, in the same experimental setup. We demonstrate the first results and discuss future research in diverse areas of materials science and condensed matter physics. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |