Welcome to the Amira-Avizo Software Use Case Gallery
Below you will find a collection of use cases of our 3D data visualization and analysis software. These use cases include scientific publications, articles, papers, posters, presentations or even videos that show how is used to address various scientific and industrial research topics.
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Open-cell foams as structured catalyst supports are promising candidates for the design of high throughput catalytic processes. In this contribution, we employ a coupled numerical and experimental approach to assess the pressure losses in foams. (…) we explore virtually-generated foam models and their 3D printed replicas for a combined CFD and experimental study of fluid dynamics in foams. In particular, we focus our analysis on the low Reynolds number regime, where deviations between t... Read more
Mauro Bracconi, Matteo Ambrosetti, Obinna Okafor, Victor Sans, Xun Zhang, Xiaoxia Ou, Claudio Pereira Da Fonte, Xiaolei Fan, Matteo Maestri, Gianpiero Groppi, Enrico Tronconi
An elemental sulfur electrode was imaged with X-ray micro and nano computed tomography and segmented into its constituent phases. Morphological parameters including phase fractions, pore and particle size distributions were calculated directly from labelled image data, and flux based simulations were performed to determine the effective molecular diffusivity of the pore phase and electrical conductivity of the conductive carbon and binder phase, Deff and σeff, that can be used as an input fo... Read more
Chun Tan, Matthew D. R. Kok, Sohrab R. Daemi, Dan Brett and Paul Shearing
Our novel procedure of injecting oil after reactive transport has revealed previously unidentified (ghost) regions of partially-dissolved grains of carbonate rock. X-ray micro-tomography and FIB-SEM techniques were used to identify and resolve these ghost regions in three-dimensions at the nm- to µm-scale. Considering the solid part of the ghost regions as macro (bulk) pore space can result in the overestimation of porosity and permeability predi... Read more
Kamaljit Singh , Benaiah U. Anabaraonye , Martin J. Blunt , John Crawshaw
The aim of this paper was to develop a model that can characterize the actual micropore structures in coal and gain an in-depth insight into water’s seepage rules in coal pores under different pressure gradients from a microscopic perspective. To achieve this goal, long-flame coals were first scanned by an X-ray 3D microscope; then, through a representative elementary volume (REV) analysis, the optimal side length was determined to be 60 μm; subsequently, by using Avizo software, the coal ... Read more
Gang Zhou, Lei Qiu, Wenzheng Zhang, and Jiao Xue
Porous binary Ti-10Mo alloys were prepared using non-spherical titanium, molybdenum powders by the powder metallurgy (PM) space holder technique. Based on the three-dimensional analysis of porosity characteristics, a detailed assessment of the effects of porosity on mechanical properties and corrosion resistances in phosphate-buffered saline (PBS) was carried out. For comparison, PM-fabricated CP-Ti with 50.5% porosity sintered at 1200 °C for 2 h and dense Ti-10Mo alloy sintered at 1450 °C ... Read more
Wei Xu, Xin Lu, Bing Zhang, Chengcheng Liu, Shaomin Lv, Shidi Yang and Xuanhui Qu
Laser-matter interactions in laser additive manufacturing (LAM) occur on short time scales (10-6 – 10-3 s) and have traditionally proven difficult to characterise. We investigate these interactions during LAM of stainless steel (SS316 L) and 13-93 bioactive glass powders using a custom built LAM process replicator (LAMPR) with in situ and operando synchrotron X-ray radiography. This reveals a range of melt track solidification phenomena as... Read more
Chu Lun Alex Leung, Sebastian Marussi, Michael Towrie, Jesus del Val Garcia, Robert C. Atwood, Andrew J. Bodey, Julian R. Jones, Philip J. Withers, Peter D.Lee
This study presents a technique to directly characterize the carbon and binder domain (CBD) in lithium-ion (Li-ion) battery electrodes in three dimensions and use it to determine the effective transport properties of a LiNi0.33Mn0.33Co0.33O2 (NMC) electrode. X-ray nanocomputed tomography (nano-CT) is used to image an electrode composed solely of carbon and binder, whereas focused ion beam–scanning electron microscopy is used to analyze cross-sect... Read more
Sohrab R. Daemi, Chun Tan, Tobias Volkenandt, Samuel J. Cooper, Anna Palacios-Padros, James Cookson, Dan J. L. Brett, and Paul R. Shearing
The electrochemical performance of Ni-YSZ SOFC anodes can quickly degrade during redox cycling. Mechanical damage at interfaces significantly decreases the number of active triple phase boundaries. This study firstly focuses on the sintering temperature impact on YSZ scaffold mechanical properties. The YSZ scaffold sintered at 1200 °C exhibited 56% Read more
B.Song; E.Ruiz-Trejo; N.P.Brandon
The flow distribution behaviour of open-cell metallic foam fuel cell flow-fields are evaluated using ex-situ optical analysis and X-ray computed tomography (X-ray CT). Five different manifold designs are evaluated and flow distribution and pressure drop ... Read more
A.Fly, D.Butcher, Q.Meyer, M.Whiteley, A.Spencer, C.Kim, P.R.Shearing, D.J.L.Brett, R.Chen
Cortical bone is permeated by a system of pores, occupied by the blood supply and osteocytes. With ageing, bone mass reduction and disruption of the microstructure are associated with reduced vascular supply. Insight into the regulation of the blood supply to the bone could enhance the understanding of bone strength determinants and fracture healing. Using synchrotron radiation-based computed tomography, the distribution of vascular canals and osteocyte lacunae was assessed in murine cortica... Read more
J.A. Núñez; A. Goring; B. Javaheri; H. Razi; D. Gomez-Nicola; E. Hesse; A.A. Pitsillides; P.J. Thurner; P. Schneider; E. Clarkin
We have experimentally investigated the impact of heterogeneity on the dissolution of two limestones, characterised by distinct degrees of flow heterogeneity at both the pore and core scales. The two rocks were reacted with reservoir-condition CO2-saturated brine at both scales and scanned dynamically during dissolution. First, 1 cm long 4 mm... Read more
Menke H.P; Reynolds C.A.; Andrew M.G.; Pereira Nunes J.P.; Bijeljic B; Blunt M.J.
The microstructure of food affects our sensorial perception, its attractiveness, and the manufactured product’s shelf-life.
Microstructural evolution in soft matter directly influences not only the material’s mechanical and functional properties, but also our perception of that material’s taste. Using synchrotron X-ray tomography and cryo-SEM we investigated the time–temperature evolution of ice cream’s microstructure. This was enabled via three adv... Read more
Enyu Guo, Guang Zeng, Daniil Kazantsev, Peter Rockett, Julian Bent, Mark Kirkland, Gerard Van Dalen, David S. Eastwood, David StJohn and Peter D. Lee
Catalyst aging effects were analyzed using X-ray absorption micro-computed tomography in combination with conventional characterization methods on various length scales ranging from nm to μm to gain insight into deactivation mechanisms.
For this purpose, a 4 wt% Pt/Al2O3 model exhaust gas catalyst was coated on a cordierite honeycomb and subjected to sequential thermal aging in static air at 950 °C for 4, 8, 12 and 24 hours. The ag... Read more
Georg Hofmann, Amélie Rochet, Elen Ogel, Maria Casapu, Stephan Ritter, Malte Ogurreck and Jan-Dierk Grunwaldt
Carbon capture and storage (CCS) offers a possible solution to curb the CO2 emissions from stationary sources in the coming decades, considering the delays in shifting energy generation to carbon neutral sources such as wind, solar and biomass.
The most mature technology for post-combustion capture uses a liquid sorbent, amine scrubbing. However, with the existing technology, a large amount of heat is required for the regeneration of the liquid sorbent, which... Read more
Matthew T. Dunstan, Serena A. Maugeri, Wen Liu, Matthew G. Tucker, Oluwadamilola O. Taiwo, Belen Gonzalez, Phoebe K. Allan, Michael W. Gaultois, Paul R. Shearing, David A. Keen, Anthony E. Phillips, Martin T. Dove, Stuart A. Scott, John S. Dennish and Clare P. Grey
The aim of this research is to model the deformation and fracture behaviour of brittle wafers often used in chocolate confectionery products.
Three point bending and compression experiments were performed on beam and circular disc samples respectively to determine the ‘apparent’ stress-strain curves in bending and compression. The deformation of the wafer for both these testing types was observed in-situ within an SEM. The wafer is modelled analytically and numerically as a composi... Read more
Idris K. Mohammeda, Maria N. Charalambides , J. Gordon Williams , John Rasburn
A multi-scale approach for fracture simulation, based on the Cellular Automata technique, has been developed and then applied to a nuclear graphite that is used in structural components of the UK Advanced Gas-cooled Reactors (AGR).
High resolution X-ray computed tomographs of Gilsocarbon grade
graphite, with up to 68% weight loss by radiolytic oxidation, provide quantitative descriptions of the porosity within its constitutive filler particles and their surrounding matrix. The st... Read more
Yelena Vertyagina, Thomas James Marrow
Microstructural properties play a key role to affect oil uptake and product quality during frying of foods. The objective of this study was to observe the complex microstructural changes and mass transfer mechanisms in potato disks during frying.
The potato disks of 1.65 mm thickness were fried at 190 °C for 0, 20, 40, 60, and 80 s. X‐ray micro‐computed tomography (CT) was used for 3‐dimensional (3D) imaging of microstructure of porous potato disks. Total porosity, pore size dis... Read more
Tanjila Alam Pawan S. Takhar
SiC-SiC ceramic matrix composites are candidate materials for fuel cladding in Generation IV nuclear fission reactors and as accident tolerant fuel clad in current generation plant.
Experimental methods are needed that can detect and quantify the development of mechanical damage, to support modelling and qualification tests for these critical components. In situ observations of damage development have been obtained of tensile and C-ring mechanical test specimens of a braided nuclear gr... Read more
L. Saucedo-Mora, T. Lowe, S. Zhao, P.D. Lee, P.M. Mummery, T.J. Marrow
This study aims to correlate the active triple phase boundaries (TPBs) to the variation of as-prepared anode microstructures and Ni densifications based on the reconstructed 3D volume of an SOFC anode, providing a point of comparison with theoretical studies that reveal the relationship of TPBs and the material microstructure using randomly packed spheres models.Read more
Xuekun Lu, Thomas M.M. Heenan, Josh J. Bailey, Tao Li, Kang Li, Daniel J.L. Brett, Paul R. Shearing, Electrochemical Innovation Lab, Department of Chemical Engineering, University College London, London
Metal additive manufacturing techniques such as the powder-bed systems are developing as a novel method for producing complex components.
This study uses synchrotron-based X-ray microtomography to investigate porosity in electron beam melted Ti-6Al-4V in the as-built and post-processed state for two different powders. The presence of gas porosity in the starting powder was shown to correlate to porosity in the as-built components. This porosity was observed to shrink after a hot isosta... Read more
Ross Cunningham, Andrea Nicolas, John Madsen, Eric Fodran, Elias Anagnostou, Michael D. Sangid & Anthony D. Rollett
Multiphase flow in porous media is strongly influenced by the wettability of the system, which affects the arrangement of the interfaces of different phases residing in the pores.
We present a method for estimating the effective contact angle, which quantifies the wettability and controls the local capillary pressure within the complex pore space of natural rock samples, based on the physical constraint of constant curvature of the interface between two fluids. This algorithm is ... Read more
Alessio Scanziani, Kamaljit Singh, Martin J. Blunt, Alberto Guadagnini