|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Bulk Metallic Glasses XV
||STEM RDF Mapping as a New Approach to Characterize Local Structural Variations in Metallic Glasses
||Xiaoke Mu, Di Wang, Christian Kuebel
|On-Site Speaker (Planned)
While STEM-EELS/EDX and EFTEM imaging techniques are routinely used to characterize compositional fluctuations in nanostructured materials and glasses, direct local structural characterization of metallic glasses in terms of short- and medium-range order is still very challenging. Therefore, we have developed radial distribution function (RDF) mapping based on nanobeam electron diffraction in STEM mode. This has proven to be very sensitive to small differences in the atomic configuration providing e.g., local interatomic distances with nanometer spatial resolution. This newly developed STEM-RDF mapping has been shown to be capable of resolving different amorphous structures of nanostructured glasses. Multilayered glasses, shear bands in BMGs and nanoglasses will be used to illustrate the capabilities of this new techniques and to elucidate the structural variations in these metallic glasses.
||Planned: Supplemental Proceedings volume