Sub-micrometer synchrotron tomography of multiphase metals using Kirkpatrick–Baez optics

Requena, Guillermo; Cloetens, Peter; Altendorfer, W.; Poletti, María Cecilia; Tolnai, D.; Warchomicka, Fernando; Degischer, H. P.

doi:10.1016/j.scriptamat.2009.06.025

Cited by 69 publications

(33 citation statements)

References 14 publications

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“…76 Harder X-rays are particularly well suited to the study of metals and matrix composites. Requena et al used 17?5 keV for Al-based systems and 29 keV for Ti systems 77 at around 100 nm. Electron microscope optics: Horn and Waltinger 78 were perhaps the first to realise that a SEM could be used for X-ray projection microscopy exploiting the highly focussed spot formed by the electron beam.…”

Section: Very High Resolution Imagingmentioning

confidence: 99%

Quantitative X-ray tomography

Maire¹,

Withers²

2013

International Materials Reviews

1,086

601

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X-ray computer tomography (CT) is fast becoming an accepted tool within the materials science community for the acquisition of 3D images. Here the authors review the current state of the art as CT transforms from a qualitative diagnostic tool to a quantitative one. Our review considers first the image acquisition process, including the use of iterative reconstruction strategies suited to specific segmentation tasks and emerging methods that provide more insight (e.g. fast and high resolution imaging, crystallite (grain) imaging) than conventional attenuation based tomography. Methods and shortcomings of CT are examined for the quantification of 3D volumetric data to extract key topological parameters such as phase fractions, phase contiguity, and damage levels as well as density variations. As a non-destructive technique, CT is an ideal means of following structural development over time via time lapse sequences of 3D images (sometimes called 3D movies or 4D imaging). This includes information needed to optimise manufacturing processes, for example sintering or solidification, or to highlight the proclivity of specific degradation processes under service conditions, such as intergranular corrosion or fatigue crack growth. Besides the repeated application of static 3D image quantification to track such changes, digital volume correlation (DVC) and particle tracking (PT) methods are enabling the mapping of deformation in 3D over time. Finally the use of CT images is considered as the starting point for numerical modelling based on realistic microstructures, for example to predict flow through porous materials, the crystalline deformation of polycrystalline aggregates or the mechanical properties of composite materials.

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Section: Very High Resolution Imagingmentioning

confidence: 99%

Quantitative X-ray tomography

Maire¹,

Withers²

2013

International Materials Reviews

1,086

601

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show abstract

“…In projection mode at 17-29 keV, with inherent propagation-based phase contrast, a spatial resolution of 180 nm in 3D has been reported in Requena et al (2009). In full-field mode and Zernike phase contrast a spatial resolution of 30 nm was demonstrated for the 2D case in Chen et al (2011) and beyond 200 nm for 3D in and Takeuchi et al (2011).…”

Section: Introductionmentioning

confidence: 95%

X-ray mosaic nanotomography of large microorganisms

Quaroni

Marone

Irvine

et al. 2012

Journal of Structural Biology

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“…Microtomography excels today with its fast [17][18][19] and high-resolution [20,21] versions. Tomographic studies of void growth have already been performed during uniaxial deformation at room temperature on a dual-phase steel [19] and a model composite [22].…”

Section: Introductionmentioning

confidence: 99%