13 citations · 15 across the 9 of their papers we have counts for
8 papers · 1 filter
3D atomistic imaging of polymer nanocomposites with Atom Probe Tomography: experimental methodology, preliminary results and future outlook
James O. Douglas, Reza Salehiyan, Aparna Saksena +5
The use of polymer nanocomposites as gas barrier materials has seen increasing interest, including applications involving hydrogen transport and storage. Better understanding of ga…
Effect of crystallographic texture on dealloying kinetics and composition of nanoporous gold surface
Ezgi Hatipoğlu, Ayman A. El-Zoka, Yujun Zhao +4
Nanoporous metals allow for tailoring composition and surface-to-volume ratio, both aspects critical for applications in catalysis. Here, Ag70Au30 (2 at. %) films with a face-cente…
Grain boundaries control lithiation of solid solution substrates in lithium metal batteries
Leonardo Shoji Aota, Chanwon Jung, Siyuan Zhang +9
The development of sustainable transportation and communication systems requires an increase in both energy density and capacity retention of Li-batteries. Using substrates forming…
Towards establishing best practice in the analysis of hydrogen and deuterium by atom probe tomography
Baptiste Gault, Aparna Saksena, Xavier Sauvage +42
As hydrogen is touted as a key player in the decarbonization of modern society, it is critical to enable quantitative H analysis at high spatial resolution, if possible at the atom…
3D deep learning for enhanced atom probe tomography analysis of nanoscale microstructures
Jiwei Yu, Zhangwei Wang, Aparna Saksena +8
Quantitative analysis of microstructural features on the nanoscale, including precipitates, local chemical orderings (LCOs) or structural defects (e.g. stacking faults) plays a piv…
On the role of Grain Boundary Character in the Stress Corrosion Cracking of Nanoporous Gold Thin Films
Aparna Saksena, Ayman El-Zoka, Alaukik Saxena +3
For its potential as a catalyst, nanoporous gold (NPG) prepared through dealloying of bulk Ag-Au alloys has been extensively investigated. NPG thin films can offer ease of handling…
Nanoporous gold thin films as substrates to analyze liquids by cryo-atom probe tomography
E. V. Woods, A. Saksena, A. A. El-Zoka +7
Cryogenic atom probe tomography (cryo-APT) is being developed to enable nanoscale compositional analyses of frozen liquids. Yet, the availability of readily available substrates th…
Optimizing site-specific specimen preparation for Atom Probe Tomography by using hydrogen for visualizing radiation-induced damage
Aparna Saksena, Binhan Sun, Xizhen Dong +3
Atom probe tomography (APT) is extensively used to measure the local chemistry of materials. Site-specific preparation via a focused ion beam (FIB) is routinely implemented to fabr…