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Atom Probe Tomography: A Characterization Method for Three-dimensional Elemental Mapping at the Atomic Scale

  • Choi, Pyuck-Pa (Max-Planck-Institut fur Eisenforschung, Department of Microstructure Physics and Alloy Design) ;
  • Povstugar, Ivan (Max-Planck-Institut fur Eisenforschung, Department of Microstructure Physics and Alloy Design)
  • Received : 2012.01.17
  • Accepted : 2012.02.10
  • Published : 2012.02.28

Abstract

The present paper gives an overview about the Atom Probe Tomography technique and its application to powder materials. The preparation of needle-shaped Atom Probe specimens from a single powder particle using focused-ion-beam milling is described. Selected experimental data on mechanically alloyed (and sintered) powder materials are presented, giving insight into the atomic-scale elemental redistribution occurring under powder metallurgical processing.

Keywords

References

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