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CHESS and CLASSE scientists take part in Expanding Your Horizons 2022
Expanding Your Horizons (EYH) is a one-day conference designed to stimulate participants’ interest in math and science through hands-on activities, provide female scientist role models, and foster awareness of opportunities in math and science-related careers. This year the event returned in-person and CHESS staff participated in a lab tour.
Nonprecious transition metal nitrides as efficient oxygen reduction electrocatalysts for alkaline fuel cells
CHEXS users have discovered a class of nonprecious metal derivatives that can catalyze fuel cell reactions about as well as platinum, at a fraction of the cost.
Engineers reveal cause of key sodium-ion battery flaw
Cornell researchers have uncovered the source of a persistent problem limiting the durability of sodium-ion batteries, providing manufacturers with new strategies for powering the 21st century.
Analysis of a three-dimensional slip field in a hexagonal Ti alloy from in-situ high-energy X-ray diffraction microscopy data
For the first time, a microscale plastic strain field (also known as crystallographic slip) has been non-destructively reconstructed in 3D in a deforming alloy.
How two cancer drugs can look the same but behave differently - revealed by serial room temperature crystallography
Many cancer cells require the enzyme glutaminase synthase C (GAC) to grow well. Consequently drugs that inhibit GAC are potential cancer treatments, and much work is being done to find the best ones. The Cerione group reports some of this work.
Measuring complex fluids under extreme flow conditions
Utilizing the unique focusing optics, flexible sample space, and SAXS capabilities at the FMB-beamline, a group of researchers from the National Institute of Standards and Technology measured the rheology and structure of complex fluids subjected to extreme flow velocities while confined within micrometer-sized capillaries.
Fermi Surface Mapping and Charge-Density-Wave Order in the Kagome Superconductor CsV3Sb5
Using a combination of synchrotron x-rays, quantum oscillations, and density functional theory, researchers have demonstrated a substantial reconstruction of the Fermi surface pockets associated with the vanadium orbitals due to the charge-density-wave.
Evolution of the Microstructure of Laser Powder Bed Fusion Ti-6Al-4V During Post-Build Heat Treatment
Ti64 components made via additive manufacturing typically exhibit poor structural properties arising from a non-equilibrium microstructure which forms under rapid cooling. The goal of the research reported here is to understand and design post-build heat treatments that can restore the desired structural properties to additively manufactured components. If a heat treatment procedure can be found which recreates the as-wrought microstructure, it would enable cost-effective advanced manufacturing of complex components in the future.