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Atom probe tomography

Diffusivity and Solubility of Cu in a Reactor Pressure Vessel Steel Studied by Atom Probe Tomography [Editor's Announcement]

Diffusivity and Solubility of Cu in a Reactor Pressure Vessel Steel Studied by Atom Probe Tomography [Editor's Announcement]

... Atom probe tomography (APT) can obtain Cu concen- tration profiles in the range of several hundreds of nano- meters because of its atomic-scale ...

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Analysis of Excitation Pulsed Signal Propagation for Atom Probe Tomography System

Analysis of Excitation Pulsed Signal Propagation for Atom Probe Tomography System

... in Atom Probe Tomography. After brief description of the atom probe functioning principle, we examine the excitation electrical pulse signal integrity along the electric pulser ...

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Composition Analysis of III Nitrides at the Nanometer Scale: Comparison of Energy Dispersive X ray Spectroscopy and Atom Probe Tomography

Composition Analysis of III Nitrides at the Nanometer Scale: Comparison of Energy Dispersive X ray Spectroscopy and Atom Probe Tomography

... As optoelectronic devices push towards higher perform- ance, engineering the quantum confinement at the nanoscale become the key for device design. However, such a fine tuning of the physical properties faces one major ...

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Controlling residual hydrogen gas in mass spectra during pulsed laser atom probe tomography

Controlling residual hydrogen gas in mass spectra during pulsed laser atom probe tomography

... an atom probe instrument limits the ability to measure H con- centration in metals and ...in atom probe instruments could help reduce these ...laser atom probe ...

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3D atom probe tomography study on segregation of yttrium in modified Al Si alloys

3D atom probe tomography study on segregation of yttrium in modified Al Si alloys

... Yttrium segregation behavior in Al-Si alloys has been studied using the three- dimensional atom probe tomography technique. Al-Si alloys were prepared by casting method, and yttrium was added to ...

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Atom probe tomography analysis of the reference zircon gj-1: An interlaboratory study

Atom probe tomography analysis of the reference zircon gj-1: An interlaboratory study

... parallel, atom probe tomography (APT) has recently emerged as a technique providing three-dimensional, subnanometer-scale analysis of minerals with a unique combination of chemical/isotopic ...

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Experimental Investigation of the Early Stage of Precipitation on Binary Al Li, Al Cu Alloys and Ternary Al Li Cu Alloys by Means of Atom  Probe Tomography

Experimental Investigation of the Early Stage of Precipitation on Binary Al Li, Al Cu Alloys and Ternary Al Li Cu Alloys by Means of Atom Probe Tomography

... Aluminum-based alloys play a key role in modern engineering and are widely used in construction components in aircraft, automobiles and other means of transporta- tion due to their light weight and superior mechanical ...

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Atomic characterization of Si nanoclusters embedded in SiO2 by atom probe tomography

Atomic characterization of Si nanoclusters embedded in SiO2 by atom probe tomography

... electron tomography has been performed by Yurtsever et ...one, atom probe tomography (APT) was performed in order to study the microstructure of SRSO/SiO 2 ...

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An environmental transfer hub for multimodal atom probe tomography

An environmental transfer hub for multimodal atom probe tomography

... analysis. Atom probe tomography is a rapidly expand- ing technique for three-dimensional structural and chemical analysis, but commercial instruments remain limited to loading specimens under ambient ...

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Elemental distributions within multiphase quaternary Pb chalcogenide thermoelectric materials determined through three dimensional atom probe tomography

Elemental distributions within multiphase quaternary Pb chalcogenide thermoelectric materials determined through three dimensional atom probe tomography

... (3D) atom-­‐probe tomography (APT) to provide high sensitivity measurements of matrix and precipitate compositions, and to determine the spatial distribution of sodium both between and within ...

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Intergranular Segregation in the Pressure Vessel Steel of a Commercial Nuclear Reactor Studied by Atom Probe Tomography

Intergranular Segregation in the Pressure Vessel Steel of a Commercial Nuclear Reactor Studied by Atom Probe Tomography

... shows atom maps near a GB as a projection onto the x­z plane, in which the view direction (y) is parallel to the GB; the GB plane is perpendicular to the picture ...

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Understanding and mitigating hydrogen embrittlement of steels : a review of experimental, modelling and design progress from atomistic to continuum

Understanding and mitigating hydrogen embrittlement of steels : a review of experimental, modelling and design progress from atomistic to continuum

... The objective of this paper is to give a reader insight into the changes caused by hydrogen residing in materials, a process that can have catastrophic effects. We mainly focus on iron and steels; other metal systems are ...

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Understanding and mitigating hydrogen embrittlement of steels: a review of experimental, modelling and design progress from atomistic to continuum

Understanding and mitigating hydrogen embrittlement of steels: a review of experimental, modelling and design progress from atomistic to continuum

... The objective of this paper is to give a reader insight into the changes caused by hydrogen residing in materials, a process that can have catastrophic effects. We mainly focus on iron and steels; other metal systems are ...

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Nano structuring of micro alloyed steels via nano precipitate formation

Nano structuring of micro alloyed steels via nano precipitate formation

... Abbreviations AHSS – Advanced High Strength Steel ACV – Alloy Contrast Variation Method APT – Atom Probe Tomography DP – Dual Phase Steel EBSD – Energy Dispersive Backscatter Diffraction[r] ...

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Nuclear Materials Characterization by Tomographic Atom Probe

Nuclear Materials Characterization by Tomographic Atom Probe

... Tomographic Atom Probe, nanoanalytical technique with atomic resolution. Atom Probe Tomography (APT) is an extension in 3D of the atom-probe field ion microscope (APFIM), ...

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Influence of Concentration Fluctuations on Relaxation Processes in Spin Glasses

Influence of Concentration Fluctuations on Relaxation Processes in Spin Glasses

... resolved atom probe tomography (APT) and volume averaged neutron (resonance) spin echo (NRSE and NSE) experiments, the influence of nano-scaled clusters on the spin relaxation in spin glasses was ...

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Variation of nanoparticle fraction and compositions in two stage double peaks aging precipitation of Al−Zn−Mg alloy

Variation of nanoparticle fraction and compositions in two stage double peaks aging precipitation of Al−Zn−Mg alloy

... nanoparticles. Atom probe tomography (APT), a novel alternative high-resolution characterization method pro- viding three-dimensional (3D) elemental information, can precisely measure both the ...

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Measuring nothing

Measuring nothing

... the atom. The motion of the atom is reversed in the case of measuring the atom in | g i in or- der to replace a subtracted ...the atom to be adiabatically transported, measured, and re- ...and ...

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Visualising shear stress distribution inside flow geometries containing pharmaceutical powder excipients using photo stress analysis tomography and DEM simulations

Visualising shear stress distribution inside flow geometries containing pharmaceutical powder excipients using photo stress analysis tomography and DEM simulations

... Albaraki, S, Antony, SJ and Arowosola, CB (2013) Visualising shear stress distribution inside flow geometries containing pharmaceutical powder excipients using photo stress analysis tomography and DEM simulations. ...

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Dynamics of atom–atom correlations in the Fermi problem

Dynamics of atom–atom correlations in the Fermi problem

... The results reported in this paper have double merit. On the one hand, they give a more complete picture of the dynamics of correlations in the two-atom Fermi problem. In fact, to the best of our knowledge, this ...

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