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2012•Journal of Korean Powder Metallurgy InstituteOpen access

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

Pyuck‐Pa Choi, Ivan Povstugar

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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.

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What this paper is about

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.

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Available 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.

Key concepts: Atom probe, Materials science, Atomic units, Characterization (materials science), Atom (system on chip), Focused ion beam, Redistribution (election), Atomic number

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