5 papers
Mircomechanical insights into unconstrained grain boundary sliding
Divya Sri Bandla, Subin Lee, Christoph Kirchlechner
Grain boundary sliding (GBS) is a key deformation mechanism at high homologous temperatures in polycrystalline materials, however, its intrinsic behavior is often obscured by addit…
Drastic softening of Pd nanoparticles induced by hydrogen cycling
Jonathan Zimmerman, Maria Vrellou, Stefan Wagner +3
Single crystalline faceted Pd nanoparticles attached to a sapphire substrate were fabricated employing the solid state dewetting method. The as-dewetted nanoparticles tested in com…
Columnar grain boundaries are the weakest link in hard coatings: Insights from micro-cantilever testing with bridge notches
Yinxia Zhang, Matthias Bartosik, Steffen Brinckmann +3
The effect of columnar grain boundaries on the fracture toughness was investigated using micro-cantilever fracture testing with a bridge notch, and a unique hard coating consisting…
Redundant Cross-Correlation for Drift Correction in SEM Nanoparticle Imaging
Iago Bischoff Montenegro, Konrad Prikoszovich, Subin Lee +3
Scanning Electron Microscopy (SEM) is a widely used tool for nanoparticle characterization, but long-term directional drift can compromise image quality. We present a novel algorit…
Data-efficient 4D-STEM in SEM: Beyond 2D Materials to Metallic Materials
Ujjval Bansal, Amit Sharma, Barbara Putz +2
Four-dimensional scanning transmission electron microscopy (4D-STEM) is a powerful tool that allows for the simultaneous acquisition of spatial and diffraction information, driven…