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Materials Science

原子探针断层扫描

Atom Probe Tomography

A characterization technique used to determine the three-dimensional composition of materials at near-atomic scale resolution. It involves the field evaporation of ions from a needle-shaped specimen and their subsequent time-of-flight mass analysis. / 原子探针断层扫描技术,一种用于在近原子尺度分辨率下确定材料三维成分的表征技术。

Knowledge type
工艺技术
First proposed or discovered
Proposer
Turkey Farm member
Creator
农场主
Last updated
2026-10-08 08:01:30
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Sub-knowledge points

Field Ion Microscopy (FIM)Time-of-Flight Mass Spectrometry (ToF-MS)3D reconstruction

Higher-order knowledge points

Main parameters and performance indicators

Field Evaporation Voltage: The voltage applied to the specimen to induce ion evaporation.Laser Pulse Energy: Energy used to assist field evaporation, particularly for insulating materials.Temperature: The specimen temperature during analysis.

Open problems

Quantitative analysis of light elementsImproving spatial resolution for insulating materials

Related literature

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Compositional metrology of atom probe applied to non-metallic materialsOpen source

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automated knowledge publish农场主2026-10-08 08:01:30

Record title: Atom Probe Tomography.