A new systematic framework for crystallographic analysis of atom probe data.
In this article, after a brief introduction to the principles behind atom probe crystallography, we introduce methods for unambiguously determining the presence of crystal planes within atom probe datasets, as well as their characteristics: location; orientation and interplanar spacing. These methods, which we refer to as plane orientation extraction (POE) and local crystallography mapping (LCM) make use of real-space data and allow for systematic analyses. We present here application of POE and LCM to datasets of pure Al, industrial aluminium alloys and doped-silicon. Data was collected both in DC voltage mode and laser-assisted mode (in the latter of which extracting crystallographic information is known to be more difficult due to distortions). The nature of the atomic planes in both datasets was extracted and analysed.
Australian Centre for Microscopy and Microanalysis, University of Sydney, Australia; School of Aerospace, Mechanical and Mechatronic Engineering, University of Sydney, Australia. Electronic address: vicente.araullopeters@gmail.com.
Vicente J
VJ
Araullo-Peters
Australian Centre for Microscopy and Microanalysis, University of Sydney, Australia; School of Aerospace, Mechanical and Mechatronic Engineering, University of Sydney, Australia.
Andrew
A
Breen
Australian Centre for Microscopy and Microanalysis, University of Sydney, Australia; School of Aerospace, Mechanical and Mechatronic Engineering, University of Sydney, Australia.
Anna V
AV
Ceguerra
Department of Materials, University of Oxford, Parks Road, Oxford, UK.
Baptiste
B
Gault
Australian Centre for Microscopy and Microanalysis, University of Sydney, Australia; School of Aerospace, Mechanical and Mechatronic Engineering, University of Sydney, Australia.
Simon P
SP
Ringer
Australian Centre for Microscopy and Microanalysis, University of Sydney, Australia; School of Aerospace, Mechanical and Mechatronic Engineering, University of Sydney, Australia.
Julie M
JM
Cairney
Atom probe tomography; Crystallography