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

High-resolution three-dimensional (3-D) imaging of heterogeneous metals was performed by high-energy magnified synchrotron tomography using Kirkpatrick–Baez focusing optics, achieving voxel sizes of (50–60 nm) 3. Holotomographic reconstructions were created based on absorption and phase contrast. Mi...

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Bibliographic Details
Published in:Scripta materialia 2009-10, Vol.61 (7), p.760-763
Main Authors: Requena, G., Cloetens, P., Altendorfer, W., Poletti, C., Tolnai, D., Warchomicka, F., Degischer, H.P.
Format: Article
Language:English
Subjects:
Aluminium alloys
Metal matrix composites
Synchrotron radiation
Synchrotron tomography
Titanium alloys
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Summary:High-resolution three-dimensional (3-D) imaging of heterogeneous metals was performed by high-energy magnified synchrotron tomography using Kirkpatrick–Baez focusing optics, achieving voxel sizes of (50–60 nm) 3. Holotomographic reconstructions were created based on absorption and phase contrast. Microstructural features as small as ∼180 nm were detected in ternary eutectic Al–Mg 2Si–Si, SiC-particle-reinforced AlCu4, near-β Ti–10V–2Fe–3Al, and in TiB-reinforced α + β Ti–6Al–4V. The phase-retrieval procedure yielded enough contrast to segment the individual phases and analyze their shapes and 3-D architecture.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2009.06.025