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Related Experiment Video

Updated: Jan 23, 2026

Atom Probe Tomography Studies on the CuIn,GaSe2 Grain Boundaries
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3D grain reconstruction from laboratory diffraction contrast tomography.

Florian Bachmann1, Hrishikesh Bale2, Nicolas Gueninchault1

  • 1Xnovo Technology ApS, Theilgaards Alle 9, 1th., Køoge, 4600, Denmark.

Journal of Applied Crystallography
|June 26, 2019
PubMed
Summary
This summary is machine-generated.

A new method reconstructs 3D grain structures using X-ray diffraction contrast tomography. This technique efficiently reveals crystallographic microstructure for materials science applications.

Keywords:
DCTX-ray diffraction contrast microscopygrain mappingreconstruction schemesthree-dimensional X-ray diffraction (3DXRD)

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Area of Science:

  • Materials Science
  • Crystallography
  • Imaging Techniques

Background:

  • Accurate characterization of three-dimensional (3D) grain structure is crucial for understanding material properties.
  • Existing methods for microstructure analysis can be time-consuming or provide limited information.
  • Advancements in X-ray diffraction contrast tomography (XRDCT) offer new possibilities for non-destructive 3D structural analysis.

Purpose of the Study:

  • To present a novel method for reconstructing the 3D grain structure.
  • To utilize data from a laboratory-based X-ray diffraction contrast tomography system.
  • To enable efficient and fast analysis of crystallographic microstructure.

Main Methods:

  • Data acquisition using a laboratory-based X-ray diffraction contrast tomography system.
  • Recording diffraction contrast patterns in Laue-focusing geometry.
  • Extracting diffraction spots containing shape information.
  • Employing a reconstruction scheme that iteratively refines solution space.

Main Results:

  • Successful reconstruction of the three-dimensional crystallographic microstructure.
  • Demonstration of an efficient and fast reconstruction process.
  • Validation of the method for well-suited samples.

Conclusions:

  • The presented method provides an effective approach for 3D grain structure reconstruction.
  • X-ray diffraction contrast tomography combined with the novel scheme offers rapid insights into microstructure.
  • This technique has the potential to advance materials characterization and analysis.