5th International Congress on 3D Materials Science (3DMS 2021): Thursday Invited
Program Organizers: Dorte Juul Jensen, Technical University of Denmark; Erica Lilleodden, Fraunhofer Insitute for Microstructure of Materials and Systems (IMWS); Scott Barnett, Northwestern University; Keith Knipling, Naval Research Laboratory; Matthew Miller, Cornell University; Akira Taniyama, The Japan Institute of Metals and Materials; Hiroyuki Toda, Kyushu University; Lei Zhang, Chinese Academy of Sciences
Thursday 1:10 PM
July 1, 2021
Room: Virtual A
Location: Virtual
Session Chair: Erica Lilleodden, Fraunhofer Insitute for Microstructure of Materials and Systems (IMWS)
1:10 PM Invited
New Opportunities in Scanning Intragranular Deformation at the Materials Science Beamline at the ESRF: Peter Reischig1; Wolfgang Ludwig2; Jon Wright3; 1InnoCryst Ltd, European Synchrotron Radiation Facility ; 2Université de Lyon, European Synchrotron Radiation Facility; 3European Synchrotron Radiation Facility
The current ESRF source upgrade is delivering an order of magnitude higher photon flux for the Materials Science beamline, ID11, and, together with newly installed state-of-the-art detectors and control software, this will greatly enhance polycrystal diffraction imaging performance. The “nanoscope” instrument provides a 100nm to 1µm size monochromatic point or line focus beams for single crystal, powder and PDF measurements. Grain boundary and intragranular strain scanning using an adaptive tomographic reconstruction have been demonstrated at submicron spatial and ~10-4 strain resolution. The “3D-XRD microscope” in the same hutch offers point, line or box beam illumination for 3D-XRD to obtain grain average properties in the far-field, and grain boundaries and sub-grain properties in the near-field (via Diffraction Contrast Tomography and Topo- Tomography), as well as phase- and absorption contrast imaging. Novel hardware calibration and reconstruction methods are increasing the sensitivity to intragranular misorientation and strain in the near-field for in-situ studies.
1:40 PM Invited
Next Generation TriBeam Systems and 3D Data Workflows: McLean Echlin1; Andrew Polonsky1; Toby Francis1; Will Lenthe2; Marie-Agathe Charpagne1; Jean-Charles Stinville1; Steven Randolph3; Jorge Filevich3; Aurélien Botman3; Remco Geurts3; Marcus Straw4; B.S. Manjunath1; Marc De Graef2; Tresa Pollock1; 1University of California, Santa Barbara; 2Carnegie Mellon University; 3Thermo Fisher Scientific; 4Applied Physics Technologies
TriBeam experiments have proven to be a path forward for cubic-mm scaled, micron resolution, 3D microanalytical data acquisition. In this talk we review new hardware developments that have enabled low damage laser ablation over larger (>1.5mm) fields of view, with high current (μA) Xenon plasma FIB for surface cleanup if necessary, and EBSD detectors than can capture 3000-5000 fps with greater electron sensitivity than existing systems. Sub-micron layers of material are laser ablated using the standard microscope stages and pre-tilt specimen holders. Data acquisition times have decreased with this new hardware, and the balance between reasonable acquisition times, imaging modalities, and data volumes are presented. Raw EBSD patterns are processed systematically, in parallel, using the spherical indexing method (EMSphInx) running on a co-located high performance computing center. Discussion of the advancements in the 3D data acquisition workflow, reconstruction and analysis software, and the collaborative data infrastructure BisQue will be made.