Atomic Scale Investigation of Cr Precipitation in Cu and Related Mechanical Properties.

2011 ◽  
Vol 172-174 ◽  
pp. 291-296
Author(s):  
Abdelahad Chbihi ◽  
Xavier Sauvage ◽  
Didier Blavette
Keyword(s):  
Mechanical Properties ◽  
Phase Diagram ◽  
Atom Probe Tomography ◽  
Quantitative Data ◽  
Volume Fraction ◽  
Early Stage ◽  
Atom Probe ◽  
Atomic Scale ◽  
Precipitation Sequence ◽  
The Relationship

The early stages of precipitation of Cr rich precipitates were investigated by Atom Probe Tomography (APT) in a Cu-1Cr-0.1Zr (wt.%). This way, quantitative data were obtained about their size, 3D shape, density, composition and volume fraction. Surprisingly, in the early stage of precipitation, nanoscaled precipitates exhibit various shapes (spherical, plates and ellipsoid) and contain a large amount of Cu (up to 50%), in contradiction with the equilibrium Cu-Cr phase diagram. APT data also show that some impurities (Fe) segregate along Cu/Cr interfaces. A precipitation sequence is proposed and the relationship between mechanical properties and microstructure is discussed.

Analytical Techniques for Aluminum

2019 ◽  
Author(s):  
Alexis Deschamps
Keyword(s):  
Atom Probe Tomography ◽  
Volume Fraction ◽  
Phase Particle ◽  
Analytical Techniques ◽  
Atom Probe ◽  
Precipitate Size ◽  
Crystallographic Structure ◽  
Second Phase ◽  
Precipitation Sequence ◽  
Geometrical Information

This article provides a guideline for selection of analytical methodologies for aluminum precipitates. These methodologies include: crystallographic structure, precipitate size, volume fraction, atom probe tomography, compositional chemistry, precipitation sequence, second phase particle characterization, and geometrical information analysis.

scholarly journals Atomic Scale Analysis of Dopants in CMOS Structures by Atom Probe Tomography

2016 ◽  
Vol 22 (S3) ◽  
pp. 1534-1535
Author(s):  
Isabelle Martin ◽  
Robert Estivill ◽  
Marc Juhel ◽  
Adeline Grenier ◽  
Ty J. Prosa ◽  
...  
Keyword(s):  
Atom Probe Tomography ◽  
Atom Probe ◽  
Atomic Scale ◽  
Scale Analysis

Challenges Associated with the Characterisation of Nanocrystalline Materials Using Atom Probe Tomography

2010 ◽  
Vol 654-656 ◽  
pp. 2366-2369 ◽  
Author(s):  
Feng Zai Tang ◽  
Talukder Alam ◽  
Michael P. Moody ◽  
Baptiste Gault ◽  
Julie M. Cairney
Keyword(s):  
Quantitative Analysis ◽  
Atom Probe Tomography ◽  
Nanocrystalline Materials ◽  
Atom Probe ◽  
Atomic Scale ◽  
Three Dimensions ◽  
Specimen Preparation ◽  
Compositional Information

Atom probe tomography provides compositional information in three dimensions at the atomic scale, and is therefore extremely suited to the study of nanocrystalline materials. In this paper we present atom probe results from the investigation of nanocomposite TiSi¬Nx coatings and nanocrystalline Al. We address some of the major challenges associated with the study of nanocrystalline materials, including specimen preparation, visualisation, common artefacts in the data and approaches to quantitative analysis. We also discuss the potential for the technique to relate crystallographic information to the compositional maps.

scholarly journals Atomic Scale Investigation of Orthopyroxene and Olivine Grain Boundaries by Atom Probe Tomography

2015 ◽  
Vol 21 (S3) ◽  
pp. 1315-1316 ◽  
Author(s):  
Mukesh Bachhav ◽  
Yan Dong ◽  
Philip Skemer ◽  
Emmanuelle A. Marquis
Keyword(s):  
Grain Boundaries ◽  
Atom Probe Tomography ◽  
Atom Probe ◽  
Atomic Scale

scholarly journals Interfaces and defect composition at the near-atomic scale through atom probe tomography investigations

2018 ◽  
Vol 33 (23) ◽  
pp. 4018-4030 ◽  
Author(s):  
Baptiste Gault ◽  
Andrew J. Breen ◽  
Yanhong Chang ◽  
Junyang He ◽  
Eric A. Jägle ◽  
...  
Keyword(s):  
Atom Probe Tomography ◽  
Atom Probe ◽  
Atomic Scale ◽  
Image Position

Abstract

scholarly journals A near atomic-scale view at the composition of amyloid-beta fibrils by atom probe tomography

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Kristiane A. K. Rusitzka ◽  
Leigh T. Stephenson ◽  
Agnieszka Szczepaniak ◽  
Lothar Gremer ◽  
Dierk Raabe ◽  
...  
Keyword(s):  
Amyloid Beta ◽  
Atom Probe Tomography ◽  
Atom Probe ◽  
Atomic Scale

scholarly journals Atom Probe Tomography for Catalysis Applications: A Review

2019 ◽  
Vol 9 (13) ◽  
pp. 2721 ◽  
Author(s):  
Cédric Barroo ◽  
Austin J. Akey ◽  
David C. Bell
Keyword(s):  
Sample Preparation ◽  
Atom Probe Tomography ◽  
Ion Beam ◽  
3D Structure ◽  
Atom Probe ◽  
Atomic Scale ◽  
High Mass ◽  
Preparation Methods ◽  
Catalytic Materials ◽  
Sample Preparation Methods

Atom probe tomography is a well-established analytical instrument for imaging the 3D structure and composition of materials with high mass resolution, sub-nanometer spatial resolution and ppm elemental sensitivity. Thanks to recent hardware developments in Atom Probe Tomography (APT), combined with progress on site-specific focused ion beam (FIB)-based sample preparation methods and improved data treatment software, complex materials can now be routinely investigated. From model samples to complex, usable porous structures, there is currently a growing interest in the analysis of catalytic materials. APT is able to probe the end state of atomic-scale processes, providing information needed to improve the synthesis of catalysts and to unravel structure/composition/reactivity relationships. This review focuses on the study of catalytic materials with increasing complexity (tip-sample, unsupported and supported nanoparticles, powders, self-supported catalysts and zeolites), as well as sample preparation methods developed to obtain suitable specimens for APT experiments.

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