5 papers
Hydride growth mechanism in Zircaloy-4: investigation of the partitioning of alloying elements
Isabelle Mouton, Yanhong Chang, Poulami Chakraborty +4
The long-term safety of water-based nuclear reactors relies in part on the reliability of zirconium-based nuclear fuel. Yet the progressive ingress of hydrogen during service makes…
Quantification challenges for atom probe tomography of hydrogen and deuterium in Zircaloy-4
Isabelle Mouton, Andrew J. Breen, Siyang Wang +8
Analysis and understanding of the role of hydrogen in metals is a significant challenge for the future of materials science, and this is a clear objective of recent work in the ato…
Segregation assisted grain boundary precipitation in a model Al-Zn-Mg-Cu alloy
Huan Zhao, Frédéric De Geuser, Alisson Kwiatkowski da Silva +4
Understanding the composition evolution of grain boundaries and grain boundary precipitation at near-atomic scale in aluminum alloys is crucial to tailor mechanical properties and…
Atomic scale analysis of grain boundary deuteride growth front in Zircaloy-4
A. J. Breen, I. Mouton, W. Lu +11
Zircaloy-4 (Zr-1.5%Sn-0.2%Fe-0.1%Cr wt. %) was electrochemically charged with deuterium to create deuterides and subsequently analysed with atom probe tomography and scanning trans…
The Laplace project: an integrated suite for correlative atom probe tomography and electron microscopy under cryogenic and UHV conditions
Leigh T. Stephenson, Agnieszka Szczepaniak, Isabelle Mouton +13
We present sample transfer instrumentation and integrated protocols for the preparation and correlative characterization of environmentally-sensitive materials by both atom probe t…