3D Materials Analytics Highlights

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Timing of carbon uptake by oceanic crust determined by rock reactivity

Elmar Albers, Svenja Jöns, Axel Gerdes, Andreas Klügel, Christoph Beier, Simone A. Kasemann, Wolfgang Bach

Geology 51(2023), 875


Carbonate formation during the alteration of oceanic crust is a global CO2 sink. Its timing and controls are not well understood,…

XRM image
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Gas Atomization of Duplex Stainless Steel Powder for Laser Powder Bed Fusion

Cui, Chengsong, Felix Stern, Nils Ellendt, Volker Uhlenwinkel, Matthias Steinbacher, Jochen Tenkamp, Frank Walther, and Rainer Fechte-Heinen.

Materials. 2023; 16(1):435.


Duplex stainless steel powders for laser additive manufacturing have not been developed…

3D Materials Analytics| Spectroscopy|

Enhanced weathering in the seabed: Rapid olivine dissolution and iron sulfide formation in submarine volcanic ash

Wolf-Achim Kahl,  Andreas Klügel,  Wolfgang BachMangir Murshed

American Mineralogist (2022) 107 (9): 1668–1680.


In basaltic volcanic ash recovered from a seamount at 3000 m water depth, we discovered marcasite and pyrite precipitation within cavities that…

3D model of rock fabric
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Morphological transition during prograde olivine growth formed by high-pressure dehydration of antigorite-serpentinite to chlorite-harzburgite in a subduction setting

Nicole Dilissen, Károly Hidas Carlos J. Garrido, Vicente López Sánchez-Vizcaíno, Wolf-Achim Kahl

Lithos (2021) 382-383, 105949


Crystal morphologies are essential for deciphering the reaction history of igneous and metamorphic rocks because they often…

3D printing colloidal assembly
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Strong Macroscale Supercrystalline Structures by 3D Printing Combined with Self‐Assembly of Ceramic Functionalized Nanoparticles

Berta Domènech, Alvin T. L. Tan, Hans Jelitto, Eduardo Zegarra Berodt, Malte Blankenburg, Oliver Focke, Jaclyn Cann, C. Cem Tasan, Lucio Colombi Ciacchi, Martin Müller, Kaline P. Furlan, A. John Hart, Gerold A. Schneider

Advanced Engineering Materials (2020) 22, 2000352


3D Material Analyse
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Crystal surface reactivity analysis using a combined approach of X-ray micro-computed tomography and vertical scanning interferometry

Wolf-Achim Kahl, Tao Yuan, Till Bollermann, Wolfgang Bach, Cornelius Fischer

American Journal of Science (2020) 320, 27-52.

doi: 10.2475/01.2020.03 

Dissolution rates of porous crystalline materials reflect the superposition of transport and surface control, mainly via the parameters saturation…

Picture of A new test system for unraveling the effects of soil components on the uptake and toxicity of silver nanoparticles (NM-300K) in simulated pore water
3D Materials Analytics|

A new test system for unraveling the effects of soil components on the uptake and toxicity of silver nanoparticles (NM-300K) in simulated pore water

Moira S. McKee, Jan Köser, Oliver Focke, Juliane Filser

Science of The Total Environment (2019) 673, 13-621


Fate, bioavailability and toxicity of silver nanoparticles (AgNP) are largely affected by soil properties. Here we focused on how these…

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Morphology, shape variation and movement of skeletal elements in starfish (Asterias rubens)

Lena Schwertmann, Oliver Focke, Jan‐Henning Dirks

Journal of Anatomy (2019) 234, 656-667


Starfish (order: Asteroidea) possess a complex endoskeleton composed of thousands of calcareous ossicles. These ossicles are embedded in a body wall mostly consisting of a…

3D Analytics Picture
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Textural evolution during high-pressure dehydration of serpentinite to peridotite and its relation to stress orientations and kinematics of subducting slabs: Insights from the Almirez ultramafic massif

Nicole Dilissen, Károly Hidas, Carlos J.Garrido, Wolf-Achim Kahl,Vicente López Sánchez-Vizcaíno, José Alberto Padrón-Navarta

Lithos (2018) 320-321, 470-489


The Almirez ultramafic massif (SE Spain) preserves the transformation of high-P antigorite…

3D Material Picture
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Ambient occlusion – A powerful algorithm to segment shell and skeletal intrapores in computed tomography data

J.Titschack, D. Baum, K. Matsuyama, K. Boos, C. Färber, W.-A. Kahl, K. Ehrig, D. Meinel, C. Soriano, S.R. Stock

Computers & Geosciences (2018) 115, 75-87


During the last decades, X-ray (micro-)computed tomography has gained increasing attention for the…

3D Material picture
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Classical and new bioerosion trace fossils in Cretaceous belemnite guards characterised via micro-CT

Max Wisshak, Jürgen Titschack, Wolf-Achim Kahl, Peter Girod

Fossil Record (2017) 20, 173–199


The ongoing technical revolution in non-destructive 3-D visualisation via micro-computed tomography (micro-CT) finds a valuable application in the studies of bioerosion trace…

3D Material Picture
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3-D microstructure of olivine in complex geological materials reconstructed by correlative X-ray µ-CT and EBSD analyses

Kahl, W.-A., Dilissen, N., Hidas, K., Garrido, C. J., López-Sánchez-Vizcaíno, V. and Román-Alpiste, M. J.

Journal of microscopy (2017) 268, 193-207


We reconstruct the 3‐D microstructure of centimetre‐sized olivine crystals in rocks from the Almirez ultramafic…

3D Material Picture
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Reaction-induced porosity and onset of low-temperature carbonation in abyssal peridotites: insights from 3D high-resolution microtomography

Niels Jöns, Wolf-Achim Kahl, Wolfgang Bach

Lithos (2016) 268-271, 274-284.


In a drillcore sample of serpentinized harzburgite from the uppermost oceanic crust (Mid-Atlantic Ridge, ODP Leg 209, Site 1270), we demonstrate using high-resolution…

3D Material Picture
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A new X-ray-transparent flow-through reaction cell for a μ-CT-based concomitant surveillance of the reaction progress of hydrothermal mineral–fluid interactions

Wolf-Achim Kahl, Christian Hansen, Wolfgang Bach

Solid Earth (2016) 7, 651-658


A new flow-through reaction cell consisting of an X-ray-transparent semicrystalline thermoplastic has been developed for percolation experiments. Core holder, tubing and all confining parts…

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