Application of the Tomographic Atom Probe to Selected Problems in Materials Science
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Abstract
Field-Ion Microscopy (FIM), equipped with a time of flight detection facility (Atom Probe APFIM) has been established as a sensitive analytical method for the investigation of the local chemical compositions on nanometer scales. Because of its high in-depth resolution of a few tenths of a nanometer, the magnification of some 107, and the equal detection sensitivity for all elements, this method has helped to solve key problems in surface science, materials research and materials engineering.
The newly developed Tomographic Atom Probe (TAP) is equipped with a position sensitive detection system and is able to provide spatially resolved information in real space on the chemical microstructure of materials and compounds with atomic resolution. The sampled volume is about two orders of magnitude larger than that usually analysed with the APFIM. The extended set of data collected by the TAP is stored and may be treated with special visualising tools. Three dimensional images can be created, which include all the information on microstructure and chemical composition of the sampled volume.
The paper demonstrates the capability of the TAP by presenting results from two investigations regarding phase separation and characterization of layer structures, respectively. For the first category TAP images of the time evolution of the decomposition of the Cu44.7Ni47.3Fe8 alloy during thermal ageing at 773 K are discussed. For the second one, results on the structure of the interfaces of sputter deposited Ni/Zr multilayers are treated. Such layers appear to be amorphous already after room temperature preparation. The thermal stability of Cu/Pd interfaces in sputter deposited multilayers is discussed with regard to the determination of interdiffusion coefficients from these data.
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© 1997 Carl Hanser Verlag, München
Articles in the same Issue
- Frontmatter
- Aufsätze
- Application of the Tomographic Atom Probe to Selected Problems in Materials Science
- Precipitation During Tempering of Chromium-rich Iron-based Martensite Alloyed with Carbon and Nitrogen
- Preparation, Structure and Physical Properties of Fe-, Co- and Ni-rich Melt-quenched Ribbons Containing Zr or Hf
- Phase Formation Kinetics of Titanium Aluminides Produced from Elemental Powder Mixtures
- Hydroxyapatite Coatings on TiNi Shape Memory Alloys
- Thermomechanical Tube Spinning of AA 2014 Aluminum Alloy
- Production of π-AlMgSiFe Crystals
- Gefügeausbildung bei der Umformung im Zweiphasengebiet
- Thermodynamic Evaluation of the Ti–Al–O Ternary System
- Thermodynamic Assessment of the Ag–Mg Binary System
- A Study of Thermal Properties for Fe–Ni –P–B Amorphous Nanosize Powders Prepared by Chemical Reduction
- Determination of Phase Equilibria in the Sm–Fe –Ti System at 600 °C
- Mitteilungen der Deutschen Gesellschaft für Materialkunde e.V.
- Personen
- Tagung
- Fortbildungspraktikum
- Buchbesprechung
- Terminkalender
Articles in the same Issue
- Frontmatter
- Aufsätze
- Application of the Tomographic Atom Probe to Selected Problems in Materials Science
- Precipitation During Tempering of Chromium-rich Iron-based Martensite Alloyed with Carbon and Nitrogen
- Preparation, Structure and Physical Properties of Fe-, Co- and Ni-rich Melt-quenched Ribbons Containing Zr or Hf
- Phase Formation Kinetics of Titanium Aluminides Produced from Elemental Powder Mixtures
- Hydroxyapatite Coatings on TiNi Shape Memory Alloys
- Thermomechanical Tube Spinning of AA 2014 Aluminum Alloy
- Production of π-AlMgSiFe Crystals
- Gefügeausbildung bei der Umformung im Zweiphasengebiet
- Thermodynamic Evaluation of the Ti–Al–O Ternary System
- Thermodynamic Assessment of the Ag–Mg Binary System
- A Study of Thermal Properties for Fe–Ni –P–B Amorphous Nanosize Powders Prepared by Chemical Reduction
- Determination of Phase Equilibria in the Sm–Fe –Ti System at 600 °C
- Mitteilungen der Deutschen Gesellschaft für Materialkunde e.V.
- Personen
- Tagung
- Fortbildungspraktikum
- Buchbesprechung
- Terminkalender