4 papers
Stacking fault segregation imaging with analytical field ion microscopy
F. F. Morgado, L. T. Stephenson, S. Bhatt +8
Stacking faults (SF) are important structural defects that play an essential role in the deformation of engineering alloys. However, direct observation of stacking faults at the at…
Scalable Substrate Development for Aqueous Biological Samples for Atom Probe Tomography
Eric V. Woods, Se-Ho Kim, Ayman A. El-Zoka +2
Reliable and consistent preparation of atom probe tomography (APT) specimens from aqueous and hydrated biological specimens remains a significant challenge. One particularly diffic…
The fate of water in hydrogen-based iron oxide reduction
Ayman A. El-Zoka, Leigh T. Stephenson, Se-Ho Kim +2
Gas-solid reactions are cornerstones of many catalytic and redox processes that will underpin the energy and sustainability transition. The specific case of hydrogen-based iron oxi…
Hydrogen and deuterium charging of site-specific specimen for atom probe tomography
Heena Khanchandani, Se-Ho Kim, Rama Srinivas Varanasi +3
Hydrogen embrittlement can cause a dramatic deterioration of the mechanical properties of high-strength metallic materials. Despite decades of experimental and modelling studies, t…