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Your search keyword '"Hinds, G."' showing total 3 results
Start Over Author "Hinds, G." Publication Type Electronic Resources
3 results on '"Hinds, G."'

1. Corrosion challenges towards a sustainable society

Author

Bender, R., Féron, D., Mills, D., Ritter, S., Bäßler, R., Bettge, D., De Graeve, I., Dugstad, A., Grassini, S., Hack, T., Halama, M., Han, E. -H, Harder, T., Hinds, G., Kittel, J., Krieg, R., Leygraf, Christopher, Martinelli, L., Mol, A., Neff, D., Nilsson, J. -O, Odnevall, Inger, Paterson, S., Paul, S., Prošek, T., Raupach, M., Revilla, R. I., Ropital, F., Schweigart, H., Szala, E., Terryn, H., Tidblad, J., Virtanen, S., Volovitch, P., Watkinson, D., Wilms, M., Winning, G., Zheludkevich, M., Bender, R., Féron, D., Mills, D., Ritter, S., Bäßler, R., Bettge, D., De Graeve, I., Dugstad, A., Grassini, S., Hack, T., Halama, M., Han, E. -H, Harder, T., Hinds, G., Kittel, J., Krieg, R., Leygraf, Christopher, Martinelli, L., Mol, A., Neff, D., Nilsson, J. -O, Odnevall, Inger, Paterson, S., Paul, S., Prošek, T., Raupach, M., Revilla, R. I., Ropital, F., Schweigart, H., Szala, E., Terryn, H., Tidblad, J., Virtanen, S., Volovitch, P., Watkinson, D., Wilms, M., Winning, G., and Zheludkevich, M.

Abstract

A global transition towards more sustainable, affordable and reliable energy systems is being stimulated by the Paris Agreement and the United Nation's 2030 Agenda for Sustainable Development. This poses a challenge for the corrosion industry, as building climate-resilient energy systems and infrastructures brings with it a long-term direction, so as a result the long-term behaviour of structural materials (mainly metals and alloys) becomes a major prospect. With this in mind “Corrosion Challenges Towards a Sustainable Society” presents a series of cases showing the importance of corrosion protection of metals and alloys in the development of energy production to further understand the science of corrosion, and bring the need for research and the consequences of corrosion into public and political focus. This includes emphasis on the limitation of greenhouse gas emissions, on the lifetime of infrastructures, implants, cultural heritage artefacts, and a variety of other topics., QC 20230404

Published
2022
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2. Influence of acoustic cavitation on the controlled ultrasonic dispersion of carbon nanotubes.

Author

Sesis, A, Hodnett, M, Memoli, G, Wain, AJ, Jurewicz, I, Dalton, AB, Carey, JD, Hinds, G, Sesis, A, Hodnett, M, Memoli, G, Wain, AJ, Jurewicz, I, Dalton, AB, Carey, JD, and Hinds, G

Abstract

Ultrasonication is the most widely used technique for the dispersion of a range of nanomaterials, but the intrinsic mechanism which leads to stable solutions is poorly understood with procedures quoted in the literature typically specifying only extrinsic parameters such as nominal electrical input power and exposure time. Here we present new insights into the dispersion mechanism of a representative nanomaterial, single-walled carbon nanotubes (SW-CNTs), using a novel up-scalable sonoreactor and an in situ technique for the measurement of acoustic cavitation activity during ultrasonication. We distinguish between stable cavitation, which leads to chemical modification of the surface of the CNTs, and inertial cavitation, which favors CNT exfoliation and length reduction. Efficient dispersion of CNTs in aqueous solution is found to be dominated by mechanical forces generated via inertial cavitation, which in turn depends critically on surfactant concentration. This study highlights that careful measurement and control of cavitation rather than blind application of input power is essential in the large volume production of nanomaterial dispersions with tailored properties.

Published
2013

3. X-ray imaging of failure and degradation mechanisms of lithium-ion batteries

Author

Finegan, D. P., Shearing, P., Brett, D., and Hinds, G.

Subjects
660
Abstract

Lithium-ion batteries are becoming increasingly energy and power dense, and are required to operate in demanding applications and under challenging conditions. Both safety and performance of lithium-ion batteries need to be improved to meet the needs of the current demand, and are inextricably linked to their microstructure and mechanical design. However, there is little understanding of the complex, multi-length scale, structural dynamics that occur inside cells during operation and failure. From the evolving particle microstructure during operation to the rapid breakdown of active materials during failure, the plethora of dynamic phenomena is not well understood. In this thesis, both ex-situ and operando X-ray imaging, and computed tomography, in combination with image-based modelling and quantification are used to characterise battery materials and components in 3D. Degradation mechanisms are investigated across multiple length-scales, from the electrode particle to the full cell architecture, and direct comparisons between materials in their fresh and failed states are made. Rapid structural evolution that occurs during operation and failure is captured using high-speed synchrotron X-ray imaging, and quantified by correlating sequential tomograms. Consistent degradation mechanisms that occur over fractions of a second are identified and are shown to contribute significantly towards uncontrolled and catastrophic failure, and previously unexplored interplay between the mechanical design of cells and their safety and performance is described. The experiments reported here assess the thermal and mechanical responses of cells to extreme operating and environmental conditions. The interaction between the dynamic architecture of active materials and the mechanical designs of commercial cells are revealed, highlighting the importance of the engineering design of commercial lithium-ion batteries and their efficacy to mitigate failure. These insights are expected to influence the future design of safer and more reliable lithium-ion batteries.

Published
2016

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