ProgramMaster Logo
Conference Tools for 2020 TMS Annual Meeting & Exhibition
Login
Register as a New User
Help
Submit An Abstract
Propose A Symposium
Presenter/Author Tools
Organizer/Editor Tools
About this Abstract
Meeting 2020 TMS Annual Meeting & Exhibition
Symposium Atom Probe Tomography for Advanced Characterization of Metals, Minerals and Materials III
Presentation Title Compositional Dependencies of Ni- and Fe-oxides to Experimental Parameters in Atom Probe Tomography
Author(s) Daniel K. Schreiber, Ann Chiaramonti, Karen Kruska
On-Site Speaker (Planned) Daniel K. Schreiber
Abstract Scope High-temperature oxidation of metals leads to a complex, 3D menagerie of nanoscopic oxides that can be analyzed successfully and uniquely by atom probe tomography (APT). The identities of these oxide phases can, in principle, be determined by their local composition (i.e. the concentration of oxygen and the ratios of specific cations). Phase identification is critical to revealing the dynamic oxidation processes, but the presence of unexpected and non-stoichiometric phases impedes facile analyses. Furthermore, APT analyses are prone to erroneous O quantification which is not fully understood. In this work, we present systematic analyses of bulk Ni and Fe oxides (NiO, FeO, Fe2O3, Fe3O4 and NiFe2O4) to gain a better understanding of the consistency and error associated with the compositional measurements. New insights into the field evaporation behavior of these metal oxides will also be discussed to suggest general operational parameters and limitations of APT oxide characterization.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Review of Atom Probe Tomography Technology: The Present and Future
APT-based Stoichiometry Measurements of Single Crystal ThO2
APT for Atomic-scale Insights to the Origins of Materials Properties
Atom Probe Tomography of Refractory High Entropy Alloys
Atom Probe Tomography Study of Fission Products in Neutron Irradiated U-Mo Fuel
Characterization of Mechanical Properties of the A356 Cast Aluminum Alloy in Accordance with the Cluster Formation Behaviors at Different Aging Temperatures
Compositional Dependencies of Ni- and Fe-oxides to Experimental Parameters in Atom Probe Tomography
Coupled APT and TEM Investigation of Cu Assisted Nucleation of L12 Precipitates in FCC-based High Entropy Alloys
Elucidating Solute Clustering and Precipitation of Al-Cu-Mg-Ag-Si Model Alloys
Material Alterations in Intense Mechanical and Chemical Contacts
Morphological Classification of Dense Objects in Atom Probe Tomography Data
Nanoparticle Sample Preparation for Atom Probe Tomography: Chemical Fixation and Cryo-Fixation
Quantifying Compositional Uncertainty Arising from Peak Overlaps
Understanding Early Stages of Nanoscale Hydriding and Oxidation Mechanisms in Metallic Systems via Atom Probe Tomography and Multimodal Chemical Imaging

Questions about ProgramMaster? Contact programming@programmaster.org