Field-Ion Microscopy and Atom Probe Tomography (FIM/APT)
In material science, field-ion Microscopy (FIM) and atomic probe Tomography (APT) are well-known techniques for imaging and analyzing materials at the atomic level. FIM allows the individual atom to be visualized on the surface, while APT gives 3-dimensional compositional mapping using sub-nanometer spatial resolution. These approaches provide unprecedented insights into the atomic structure and composition of materials.
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Introduction to FIM/APT
Field-ion microscopy enables the visualization of individual atoms on a material’s surface, and it was developed in the 1950s by Erwin Müller. APT is an extension of FIM. Atom Probe Tomography (APT) is a highly effective microscopy technique that produces a three-dimensional (3D) atom-by-atom reconstruction of a small volume within a material. The generated 3D atom maps depict the position and identification of individual atoms in a region that may contain hundreds of millions of atoms. FIM and APT play significant role in different fields like materials science, metallurgy, and nanotechnology. MaTestLab is one of the leading testing service providers in the USA and Canada. We have a large network of testing laboratories in the USA.
Principle and Methodology of FIM/APT
Field-Ion Microscopy (FIM)
FIM operates on the principle of field ionization. In FIM, a strong electric field ionizes rare gas atoms (imaging gas) near a needle-shaped object. Ion beams are created near the sample surface and projected onto a screen (phosphorous or digital), resulting in an atomic-scale representation of the sample surface’s topography.
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Atom Probe Tomography (APT)
APT extends FIM by incorporating time-of-flight mass spectrometry. An Atom Probe evaporates atoms from a small needle-shaped sample (usually < 100 nm in diameter) and projects them onto a position-sensitive detector. The detector detects the position of each atom’s impact, the order of arrival, and the duration of the atom’s trip from tip to detector. This information can be utilized to create a 3D picture of the material on an atomic scale.
Instrumentation
FIM instrumentation includes a sharp needle specimen, high voltage supply, and imaging screen for capturing and displaying ionized atoms. APT instrumentation includes a pulsed laser or voltage source for controlled atom evaporation, a time-of-flight detector for ion travel time, and a data acquisition system for 3D reconstruction of spatial and mass spectrometry data. These components work together to create a strong electric field for field ionization.
Applications of FIM/APT
FIM and APT are used in many scientific and industrial domains because of their capacity to deliver detailed atomic-level information. They are most typically used in the field of material science. They are particularly useful for studying metals, semiconductors, ceramics, and composites. However, recent advances in technology have broadened their application fields to include geological and biological sciences.
You can share your fim apt testing requirements with MaTestLab. MaTestLab has a vast network of material testing laboratories, spread across the USA and Canada. We support your all material testing needs ranging from specific fim apt test to various testing techniques.
How much do I need to pay for the fim apt test?
Please contact us for a detailed quote for your fim apt testing needs. Cost incurred to carry out different fim apt testing methodology depends on the type of raw material; number of samples, coupons, or specimens; test conditions, turn around time etc. Costs of some ASTM testing methods start from $100 and the final value depends upon the factors listed above. Please contact us for the best and latest prices.
How many samples are required for fim apt?
The required number of samples or specimens should comply with the procedure given in the fim apt standard. However, the MaTestLab operations team can assist you for your special requirements once you share your testing details with us.
How much discount can I get on the fim apt test?
MaTestLab has a vast testing laboratory network, hence we bring you the best testing facilities in a cost-effective way. We offer considerable discounts (15-20%) to our returning customers based on test volume and frequency.
How many days will it take to complete the fim apt test?
The turnaround time for fim apt test methodology depends upon the test procedure mentioned in the standard test document. However, we at MaTestLab understand your research requirements and hence try to get your test completed within the least possible time.
Where can I get the fim apt tested?
You can share your fim apt testing requirements with MaTestLab. MaTestLab has a vast network of material testing laboratories, spread across the USA and Canada. We support your all material testing needs ranging from specific fim apt test to various testing techniques.
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