Revealing Filler Morphology in 3D-Printed Thermoset Nanocomposites by Scanning Microbeam X-ray Scattering
3D printing leads to many defects and interfaces within printed parts. Failure during performance in the road-to-road and layer-by-layer processed parts appears at these interfaces and defects. Understanding the root cause of these limitations is key.
Congratulations to Jacob Ruff, New Director of CHEXS
Jacob Ruff has been named the new director of the Center for High-Energy X-ray Sciences at CHESS (CHEXS @ CHESS). In his role, Jacob will lead research at the five beamlines of CHEXS while supporting education and training, particularly of researchers in biological sciences, engineering, and materials research.
Darren Pagan awarded AFRL grant
Former CHESS Staff Scientist Darren Pagan has been awarded a Young Investigator Research Program grant through the Air Force Office of Scientific Research (AFOSR).
In-situ high energy X-ray diffraction probes elastic response of metastable engineered alloys
Recent research at CHESS provides a framework by which the single crystal elastic constants of complex alloys can be determined experimentally in a straightforward manner.
Validation of Welding Model for Digital Twin of Thick-Plate Joint: Mapping Residual Strains in HSLA Steel using High Energy X-rays
The US Navy is seeking to establish digital twin prototypes across the Fleet, which will require material processing data (residual stress and distortion) included in the input model to increase accuracy of the lifecycle analysis. This work will establish the evolution of residual stress across numerous steps throughout the fabrication process: incoming plate, post-machining, and post-welded assembly.
Breakdown of the Small-Polaron Hopping Model in Higher-Order Spinels
The authors present an updated “small-polaron hopping model” to include contributions of decoupled pathways for the flow of electrons in spinel oxides. Their work provides a route for custom-tailoring the properties of oxides used in technologies such as fuel cells, batteries, and solar cells.
CHESS receives $32.6M from NSF for new X-ray beamline
The National Science Foundation has awarded the Cornell High Energy Synchrotron Source (CHESS) $32.6 million to build a High Magnetic Field (HMF) beamline, which will allow researchers to conduct precision X-ray studies of materials in persistent magnetic fields that exceed those available at any other synchrotron.
X-rays uncover “hidden” quantum states
Quantum materials research involves manipulating and measuring the collective quantum states of electrons in materials. The NSF-funded user facilities at CHESS and the National High Magnetic Field Laboratory (aka the MagLab) have long been important resources in this pursuit.