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.
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
The most common means of fabricating membrane electrode assemblies (MEAs) for polymer electrolyte fuel cells (PEFCs) involves a hot-press step. The conditions used to perform the hot-press impacts the performance and durability of the fuel cell.
However, the hot-press process is not essential for achieving operational MEAs and some practitioners dispense with the hot-press stage altogether by using a self-assembled approach. By performing the integration of the components in-situ durin... Read more
Jennifer Hack, T. M. M. Heenan, F. Iacoviello, N. Mansor, Q. Meyer, P. Shearing, N. Brandon and D. J. L. Brett
Lifetime-limiting failure of fuel cell membranes is generally attributed to their chemical and/or mechanical degradation. Although both of these degradation modes occur concurrently during operational duty cycles, their uncoupled investigations can provide useful insights into their individual characteristics and consequential impacts on the overall membrane failure.
X-ray computed tomography is emerging as an advantageous tool for fuel cell failure analysis due to its non-destructive ... Read more
Yadvinder Singh, Francesco P. Orfino, Monica Dutta, and Erik Kjeang
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
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
We had proposed an image-processing scheme using union operation suitable for extracting target features with hierarchical dimensions from the original data, and applied it to void analysis in a composite electrode of an all-solid-state lithium ion battery (LIB). Void analysis is very important in developing better composite electrodes for all-solid-state LIBs because internal voids should increase the interfacial resistance. Film formation of electrode-solid electrolyte composites by the aer... Read more
Yuta Yamamoto , Yasutoshi Iriyama, and Shunsuke Muto
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
Here, a review of tortuosity calculation procedures applied in the field of electrochemical devices is presented to better understand the resulting values presented in the literature. Visible differences between calculation methods are observed, especially when using porosity–tortuosity relationships and when comparing geometric and flux-based tortuosity calculation approaches.Read more
Bernhard Tjaden, Dan J. L. Brett, Paul R. Shearing