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pro vyhledávání: '"Stephenson, Leigh T."'
Reliable and consistent preparation of atom probe tomography (APT) specimens from aqueous and hydrated biological specimens remains a significant challenge. One particularly difficult process step is the use of a focused ion beam (FIB) instrument for
Externí odkaz:
http://arxiv.org/abs/2308.16672
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 oxide reduction is the foundation to render the global steel industry fos
Externí odkaz:
http://arxiv.org/abs/2301.06391
The upcoming flexible ultra-thin glass for foldable displays has attracted widespread attention as an alternative to rigid electronic smartphones. However, the detailed compositional effect of the chemical strengthening of the glass is not well under
Externí odkaz:
http://arxiv.org/abs/2203.16389
Autor:
Kim, Se-Ho, Antonov, Stoichko, Zhou, Xuyang, Stephenson, Leigh T., Jung, Chanwon, El-Zoka, Ayman A., Schreiber, Daniel K., Conroy, Michele, Gault, Baptiste
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 generated a surge of interest in battery technology. Understanding the facto
Externí odkaz:
http://arxiv.org/abs/2110.03716
Autor:
Khanchandani, Heena, Kim, Se-Ho, Varanasi, Rama Srinivas, Prithiv, TS, Stephenson, Leigh T., Gault, Baptiste
Hydrogen embrittlement can cause a dramatic deterioration of the mechanical properties of high-strength metallic materials. Despite decades of experimental and modelling studies, the exact underlying mechanisms behind hydrogen embrittlement remain el
Externí odkaz:
http://arxiv.org/abs/2109.13650
Autor:
Kim, Se-Ho, Yoo, Su-Hyun, Chakraborty, Poulami, Jeong, Jiwon, Lim, Joohyun, El-Zoka, Ayman A., Zhou, Xuyang, Stephenson, Leigh T., Hickel, Tilmann, Neugebauer, Jörg, Scheu, Christina, Todorova, Mira, Gault, Baptiste
Metal nano-aerogels combine a large surface area, a high structural stability, and a high catalytic activity towards a variety of chemical reactions. The performance of such nanostructures is underpinned by the atomic-level distribution of their cons
Externí odkaz:
http://arxiv.org/abs/2106.06342
The eutectic Ga-In (EGaIn) alloy has low vapor pressure, low toxicity, high thermal and electrical conductivities, and thus has shown a great potential for smart material applications. For such applications, EGaIn is maintained above its melting poin
Externí odkaz:
http://arxiv.org/abs/2105.12799
Autor:
Katnagallu, Shyam, Morgado, Felipe Felipe F., Mouton, Isabelle, Gault, Baptiste, Stephenson, Leigh T.
Atom probe tomography (APT) helps elucidate the link between the nanoscale chemical variations and physical properties, but it has limited structural resolution. Field ion microscopy (FIM), a predecessor technique to APT, is capable of attaining atom
Externí odkaz:
http://arxiv.org/abs/2103.11010
Autor:
Morgado, Felipe F., Katnagallu, Shyam, Freysoldt, Christoph, Klaes, Benjamin, Vurpillot, François, Neugebauer, Jörg, Raabe, Dierk, Neumeier, Steffen, Gault, Baptiste, Stephenson, Leigh T.
Imaging individual vacancies in solids and revealing their interactions with solute atoms remains one of the frontiers in microscopy and microanalysis. Here we study a creep-deformed binary Ni-2 at.% Ta alloy. Atom probe tomography reveals a random d
Externí odkaz:
http://arxiv.org/abs/2103.01639
Autor:
Gault, Baptiste, Klaes, Benjamin, Morgado, Felipe F., Freysoldt, Christoph, Li, Yue, De Geuser, Frederic, Stephenson, Leigh T., Vurpillot, François
Atom probe tomography is often introduced as providing "atomic-scale" mapping of the composition of materials and as such is often exploited to analyse atomic neighbourhoods within a material. Yet quantifying the actual spatial performance of the tec
Externí odkaz:
http://arxiv.org/abs/2103.01665