LEAP 5000XR
Ni-superalloy for gas turbines applications, studying phase partitioning/interfaces
Local Electrode Atom Probe (LEAP) 3000HR
3D ion maps reconstructed from APT data for Y, Y-O and Hf-O core-cluster ions in a ODS Fe-14Cr alloy containing Hf.
3D ion maps from HT9 alloy Fe ion irradiated to 10dpa at 470oC. 2.0 at% Ni isosurfaces highlighting Ni segregation to the high and low angle grain boundaries and dislocation lines present in the analised volume.

Variations in hardness of the 17-4PH with heat treatment time at 480 °C and 590 °C.
Atom maps of 17-4PH heat treated for 20 min at 590 °C.Atom maps of 17-4PH heat treated for 24 h at 590 °C.

Direct observation of trapped isotopic hydrogen within a ferritic steel containing vanadium-carbide. As can be seen from the top-down and side slices, heavy hydrogen atoms (2H) are correlated to the carbide positions.
  • LEAP 5000XR
  • Ni-superalloy for gas turbines applications, studying phase partitioning/interfaces
  • Local Electrode Atom Probe (LEAP) 3000HR
  • 3D ion maps reconstructed from APT data for Y, Y-O and Hf-O core-cluster ions in a ODS Fe-14Cr alloy containing Hf.
  • 3D ion maps from HT9 alloy Fe ion irradiated to 10dpa at 470oC. 2.0 at% Ni isosurfaces highlighting Ni segregation to the high and low angle grain boundaries and dislocation lines present in the analised volume.
  • Variations in hardness of the 17-4PH with heat treatment time at 480 °C and 590 °C.Atom maps of 17-4PH heat treated for 20 min at 590 °C.Atom maps of 17-4PH heat treated for 24 h at 590 °C.
  • Direct observation of trapped isotopic hydrogen within a ferritic steel containing vanadium-carbide. As can be seen from the top-down and side slices, heavy hydrogen atoms (2H) are correlated to the carbide positions.

News

Awarded to the poster "Atom probe tomography of Carlin type gold mineralisation", by Dr Phillip Gopon (Department of Earth Science)

Megan Carter, James Famelton and Charles Fletcher joined the Atom Probe group to start their respective PhD research projects

Megan Jones and Samantha Southern join the Atom Probe group to work on their Part II research projects



Atom Probe Group

Atom probe tomography is a microscopy technique that provides 3D atom-by-atom imaging of materials with a uniquely powerful combination of spatial and chemical resolution. For more than 40 years, the Atom Probe Research Group in the Department of Materials at the University of Oxford has maintained a tradition of pioneering field ion microscopy research and in particular the development and application of the atom probe technique. The group is currently active in all aspects of atom probe research, including: establishing new materials applications, instrumentation and the development of 3D reconstruction and data analysis techniques.

 

For further information about atom probe tomography or how to collaborate with us, please contact:

Prof Michael Moody (Head of Group) - michael.moody@materials.ox.ac.uk

Dr Paul Bagot (Atom Probe Staff Scientist) - paul.bagot@materials.ox.ac.uk