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Suppression of Grain Boundary Nitrogen Degradation by Boron in Superalloys
C. Crabb, G. Topore, J. O. Douglas +3
Superalloys enable the hottest sections of jet engines to operate at high temperatures, but environmentally assisted degradation limits their lifetime. In polycrystalline alloys, n…
Helium-Cooled Cryogenic STEM Imaging and Ptychography for Atomic-Scale Study of Low-Temperature Phases
Noah Schnitzer, Mariana Palos, Geri Topore +7
Much of the exotic functionality of prime interest in quantum materials emerges from structural and electronic ground states that can only be accessed at cryogenic temperatures. Un…
Quantifying Phase Transformations in Alloying Anodes via In-Situ Liquid Cell Hard X-ray Spectroscopy and Cryogenic Microscopy
Neil Mulcahy, Syeda Ramin Jannat, Yaqi Li +7
Understanding electrochemical phenomena at complex liquid solid interfaces requires linking real time structural dynamics with atomic scale interfacial chemistry. Here, we integrat…
Time-Dependent Oxidation and Scale Evolution of a Wrought Co/Ni-based Superalloy
Cameron. Crabb, Zachary. T. Kloenne, Samuel. R. Rogers +4
Understanding how protective oxide scales evolve over time is necessary for improving the long term resistance of superalloys. This work investigates the time-dependent oxidation b…
Probing the Liquid Solid Interfaces of 2D SnSe MXene Battery Anodes at the Nanoscale
Lukas Worch, Kavin Arunasalam, Neil Mulcahy +5
Understanding degradation processes in lithium ion batteries is essential for improving long term performance and advancing sustainable energy technologies. Tin selenide (SnSe) has…
Degradation and SEI Evolution in Alloy Anodes Revealed by Correlative Liquid-Cell Electrochemistry and Cryogenic Microscopy
Neil Mulcahy, Syeda Ramin Jannat, Geri Topore +5
Understanding solid liquid interfaces at high spatial and chemical resolution is crucial for advancing electrochemical energy storage technologies, yet this remains a persistent ch…
Navigating Chiral Spin Architectures in Non-Collinear Antiferromagnetic Thin Films
Freya Johnson, Jan Zemen, Geri Topore +6
Noncollinear antiferromagnets offer much promise for antiferromagnetic spintronics and neuromorphic applications with a plethora of functional properties surpassing many competing…
A Workflow for Correlative in-situ Nano-chip Liquid Cell Transmission Electron Microscopy and Atom Probe Tomography Enabled by Cryogenic Plasma Focused Ion Beam
Neil Mulcahy, James O. Douglas, Syeda Ramin Jannat +5
Operando/in-situ liquid cell transmission electron microscopy (LCTEM) allows for real time imaging of dynamic nanoscale liquid-based processes. However, due to the thick liquid cel…
Look What You Made Me Glue: SEMGluTM Enabled Alternative Cryogenic Sample Preparation Process for Cryogenic Atom Probe Tomography Studies
Neil Mulcahy, James O Douglas, Michele Conroy
Extensive efforts over the past number of years have been applied to develop workflows for sample preparation of specimens for atom probe tomography at cryogenic temperatures. This…
Atom probe analysis of battery materials: challenges and ways forward
Se-Ho Kim, Stoichko Antonov, Xuyang Zhou +6
The worldwide developments of electric vehicles, as well as large-scale or grid-scale energy storage to compensate the intermittent nature of renewable energy generation has genera…