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.
Use the Domain selector to filter by main application area, and use the Search box to enter keywords related to specific topics you are interested in.
The hot pressing process for fabricating membrane electrode assemblies (MEAs) has been widely adopted, yet little is known of its effects on the microstructural properties of the different components of the MEA. In particular, the interaction of the electrolyte, electrode and gas diffusion layer (GDL) due to lamination is difficult to probe as conventional imaging techniques cannot access the internal structure of the MEA. Here, a novel approach is used, which combines characterisation of hot... Read more
Q. Meyer, N. Mansor, F. Iacoviello, P.L. Cullen, R. Jervis, D. Finegan, C. Tan, J. Bailey, P. R. Shearing, D. J. L. Brett
For many years, SFRPs (short fibre reinforced polyamides) have been used in the automotive industry as a means to reduce vehicle weight. However, their complex anisotropic and heterogeneous microstructure requires sophisticated material characterisation and simulation. This study aims at presenting the simulation strategy adopted by an automotive company address these challenges. The manufacturing process is first simulated and correlated with tomography analysis. Then, based on the numerical... Read more
Pablo Wilson, Peter Heyes
The effect of ultrasonic melting processing on three-dimensional architecture of intermetallic phases and pores in two multicomponent cast Al-5.0Cu 0.6Mn-0.5 Fe alloys is characterized using conventional microscopy and synchrotron X-ray microtomography. (…) The results show that ultrasonic melt processing (USP) significantly reduce the volume fraction, grain size, interconnectivity, and equivalent diameter of the intermetallic phases in both alloys. The volume fraction of pores in both ... Read more
Yuliang Zhao, Dongfu Song, Bo Lin, Chun Zhang, Donghai Zheng, Zhi Wang, Weiwen Zhang
We describe in detail a methodology to estimate the effective elastic parameters of nodular cast iron, using micro-tomography in conjunction with multiscale finite elements. We discuss the adjustment of the image acquisition parameters, address the issue of the representative-volume choice, and present a brief discussion on image segmentation. In addition, the finite-element computational implementation developed to estimate the effective elastic parameters from segmented microstructural imag... Read more
Andre Pereira, Marcio Costa, Carla Anflor, Juan Pardal and Ricardo Leiderman
We introduce the application of microbial-induced calcite precipitation via the ureolytic soil bacterium Sporosarcina Pasteurii in freeze-dried form, as a means of enhancing overall MICP efficiency and reproducibility for geotechnical engineering applications. We show that the execution of urea hydrolysis and CaCO3 precipitation persist as a “cell-free” mechanism upon the complete breakdown of rehydrated cell clusters. Further, strength and stiffness parameters of bio-cemented ... Read more
Dimitrios Terzis, Lyesse Laloui
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
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
Mass transport can significantly limit the rate of reaction and lead to concentration polarization in electrochemical devices, especially under the conditions of high operating current density.
In this study we investigate hierarchically structured micro-tubular solid
oxide fuel cells (MT-SOFC) fabricated by phase inversion technique and quantitatively assess the mass transport and electrochemical performance improvement compared to a conventional tubular SOFC. We present pioneer... Read more
Xuekun Lu, Tao Li, Antonio Bertei, Jason I S Cho , Thomas M.M. Heenan , Rabuni Mohamad, Kang Li, Dan JL Brett, Paul R Shearing
Composite cathodes comprising nanoscale
powders are expected to impart with high specific surface
area and triple phase boundary (TPB) density, which will lead
to better performance.
However, uniformly mixing nanosized heterophase powders remains a challenge due to their high surface energy and thus ease with which they agglomerate into their individual phases during the mixing and sintering
processes. In this study, we successfully synthesized La0.6Sr0.4Co0.2Fe... Read more
Dong Woo Joh, Areum Cha, Jeong Hwa Park, Kyeong Joon Kim, Kyung Taek Bae, Doyeub Kim, Young Ki Choi, Hyegsoon An, Ji Su Shin, Kyung Joong Yoon, and Kang Taek Lee
Nickel/zirconia-based nanostructured electrodes for solid oxide fuel cells suffer from poor stability even at intermediate temperature.
This study quantifies the electrochemical and microstructural degradation of nanostructured electrodes by combining 3D tomography, electrochemical impedance spectroscopy (EIS) and mechanistic modeling. For the first time, the electrochemical degradation of nanostructured electrodes is quantified according to the fractal nature of the three-phase bounda... Read more
A. Bertei, E. Ruiz-Trejo, K. Kareh, V. Yufit, X. Wang, F. Tariq, N.P. Brandon,
A simple chemical bath deposition is used to coat a complex porous ceramic scaffold with a conformal Ni layer.
The resulting composite is used as a solid oxide fuel cell electrode, and its electrochemical response is measured in humidified hydrogen. X‐ray tomography is used to determine the microstructural characteristics of the uncoated and Ni‐coated porous structure, which include the surface area to total volume, the radial pore size, and the size of the necks between the pores.... Read more
Dr. Enrique Ruiz‐Trejo, Milla Puolamaa, Brian Sum, Dr. Farid Tariq, Dr. Vladimir Yufit, Prof. Nigel P. Brandon
Ni-YSZ anodes for Solid Oxide Fuel Cells are vulnerable to microstructural damage during redox cycling leading to a decrease in the electrochemical performance.
- Quantification of redox damage by coupling 3D tomography, EIS and nanoindentation.
- YSZ fracture, Ni detachment and agglomeration led to irreversible mechanical damage.
- Ni nanoparticles obtained upon redox cycling improve electrochemical performance.
- Loss in TPB densi... Read more
Bowen Song, Enrique Ruiz-Trejo, Antonio Bertei, Nigel P.Brandon
Electrospun all-fiber flexible supercapacitor with nanofiber electrodes/separator.
- Increased graphitic degree with the addition of MnACAC and thermal decomposition.
- Enhanced capacitive performance with the addition of MnO.
- Quantified nanofiber alignment and increased bias with MnO over undoped fibers.
- FIBSEM tomography of nanofibers showing MnO disitribution in carbon nanofibers.
We present an all-fiber flexible supercapacitor with compo... Read more
Xinhua Liu, Max Naylor Marlow, Samuel J. Cooper, Bowen Song, Xiaolong Chen, Nigel P. Brandon, Billy Wu
TRISO particles, a composite nuclear fuel built up by ceramic and graphitic layers, have outstanding high temperature resistance. TRISO fuel is the key technology for High Temperature Reactors (HTRs) and the Generation IV Very High Temperature Reactor (VHTR) variant.
TRISO offers unparalleled containment of fission products and is extremely robust during accident conditions. An understanding of the thermal performance and mechanical properties of TRISO fuel requires a detailed knowledg... Read more
T. Lowe, R.S. Bradley, S. Yue, K. Barii, J. Gelb, N. Rohbeck, J. Turner, P.J. Withers
Reprocessing of spent nuclear fuels using molten salt media is an attractive alternative to liquid-liquid extraction techniques.
Pyroelectrochemical processing utilizes direct, selective, electrochemical reduction of uranium dioxide, followed by selective electroplating of a uranium metal. Thermodynamic prediction of the electrochemical reduction of UO2 to U in LiCl-KCl eutectic has shown to be a function of the oxide ion activity. The pO2 of the salt may be affected by the microstruc... Read more
L.D. Brown, R. Abdulaziz, B. Tjaden, D. Inman, D.J.L. Brett, P.R. Shearing
Our parametric study shows that increasing the porosity in the spongy layer beyond 10% enhances the effective transport parameters of the spongy layer at an exponential rate, but linearly for the full anode. For the first time, local and global mass transport properties are correlated to the microstructure, which is of wide interest for rationalizing the design optimization of SOFC electrodes and more generally for hierarchical materials in batteries and membranes.Read more
Xuekun Lu, Oluwadamilola O. Taiwo, Antonio Bertei, Tao Li, Kang Li, Dan J.L. Brett, Paul R.Shearing
Fossil dental remains are an archive of unique information for paleobiological studies. Computed microtomography based on Xray microfocus sources (X-µCT) and Synchrotron Radiation (SR-µCT) allow subtle quantification at the micron and sub-micron scale of the meso- and microstructural signature imprinted in the mineralized tissues, such as enamel and dentine, through highresolution “virtual histology”. Nonetheless, depending on the degree of alterations undergone during fossiliza... Read more
Clément Zanolli, Laboratory AMIS, UMR 5288, University of Toulouse III - Paul Sabatier, France, and al.
The authors present for the first time a new methodology of contrast enhancement for 3D imaging, including novel advanced quantification, on a commercial Lithium Iron Phosphate (LFP) LiFePO4 cathode. The aim of this work is to improve the quality of the 3D imaging of challenging battery materials by developing methods to increase contrast between otherwise previously poorly differentiated phases. This is necessary to enable capture of the real geometry of electrode microstructures... Read more
Moshiel Biton, Vladimir Yufit, Farid Tariq, Masashi Kishimoto and Nigel Brandon
The microstructural degradation of a composite silicon electrode at different stages in its cycle life was investigated in 3D using X-ray nano-computed tomography. A reconstructed volume of 36 μm × 27 μm × 26 μm from the composite electrode was imaged in its pristine state and after 1, 10 and 100 cycles. Particle fracturing and phase transformation was observed within the electrode with increased cycling. In addition, a distinct, lower X-ray attenuating phase was clearly resolved,... Read more
Oluwadamilola O. Taiwo, Melanie Loveridge, Shane D.Beattie, Donal P.Finegan, Rohit Bhagat, Daniel J.L.Brett, Paul R.Shearing
Advanced nanotomographic analysis is still far from routine, and a number of challenges remain in data acquisition and post-processing. In this work, we present a number of techniques to improve the quality of the acquired data, together with easy-to-implement methods to obtain “advanced” microstructural quantifications. The techniques are applied to a solid oxide fuel cell cathode of interest to the electrochemistry community, but the methodologies are easily adaptable to a wide range of... Read more
Joshua A.Taillon, Christopher Pellegrinelli, Yi-Lin Huang, Eric D.Wachsman, Lourdes G. Salamanca-Riba