Enhancing the performance of high voltage direct current power cables by studying space charge accumulation in their synthetic polymeric insulation. Synthetic polymeric insulation has proved very successful in high voltage alternating current power transmission cables, and cable manufacturers have therefore sought to use it in high voltage direct current (HVDC) cables, for which there is a rapidly growing demand. Yet the accumulation of space charge in such cables presently severely limits the m ....Enhancing the performance of high voltage direct current power cables by studying space charge accumulation in their synthetic polymeric insulation. Synthetic polymeric insulation has proved very successful in high voltage alternating current power transmission cables, and cable manufacturers have therefore sought to use it in high voltage direct current (HVDC) cables, for which there is a rapidly growing demand. Yet the accumulation of space charge in such cables presently severely limits the maximum operating voltage and transmitted power. Nearly all this space charge is due to the temperature gradient in the insulation. We will analyze space charge profiles in polyethylene and other synthetic polymers, and derive basic scientific data which will inform the design of HVDC cables with greatly enhanced performance.Read moreRead less
Core loss mechanisms in soft magnetic nanostructures. This project aims to clarify the mechanism of power losses in magnetic cores used in the petrol-electric hybrid cars by investigating the relationship between the core losses and magnetic correlation lengths in iron alloys. This project expects to generate new knowledge on the effect of magneto-mechanical interaction on the anomalous core loss in iron based alloys. The intended outcomes include an experimental confirmation of the random aniso ....Core loss mechanisms in soft magnetic nanostructures. This project aims to clarify the mechanism of power losses in magnetic cores used in the petrol-electric hybrid cars by investigating the relationship between the core losses and magnetic correlation lengths in iron alloys. This project expects to generate new knowledge on the effect of magneto-mechanical interaction on the anomalous core loss in iron based alloys. The intended outcomes include an experimental confirmation of the random anisotropy model, a major theoretical model in nanostructured materials and identification of ideal magnetic domain configurations for lower power losses. These intended outcomes should bring great benefits to the development of low-carbon vehicle technologies for sustainable motorisation in Australia.Read moreRead less
Nanostructured soft magnetic alloys for low-carbon cars. The aim of this project is to prepare iron-based magnetic nanostructures that exhibit a magnetic induction of 1.9 tesla and core losses lower than those of iron-silicon steels, which would deliver smaller and efficient magnetic cores for petrol-electric hybrid cars. Preliminary results from the research team show that iron-metalloid alloys with an iron content of 87 per cent meet this magnetic induction with room for further improvement of ....Nanostructured soft magnetic alloys for low-carbon cars. The aim of this project is to prepare iron-based magnetic nanostructures that exhibit a magnetic induction of 1.9 tesla and core losses lower than those of iron-silicon steels, which would deliver smaller and efficient magnetic cores for petrol-electric hybrid cars. Preliminary results from the research team show that iron-metalloid alloys with an iron content of 87 per cent meet this magnetic induction with room for further improvement of magnetic softness. The project aims to systematically investigate the effect of metalloid and micro-alloying elements on the nano-crystallisation behaviour of the precursor amorphous alloys in order to identify the alloy composition and processing conditions for preparing magnetically soft nanostructures.Read moreRead less
Soft magnetic nanostructures for clean automotive technologies: origin of induced magnetic anisotropies. This project will clarify the mechanism of annealing-induced magnetic anisotropies in magnetic nanostructures and thereby establish a basis for further alloy development of efficient core materials for electric motors. The project outcomes will potentially lead to a significant reduction of the heat loss in petrol-electric hybrid cars.
Diamond-based wideband radiofrequency fibre-optic sensor. This project aims to address the growing problem of ultra-wide radiofrequency signal monitoring. Developing a rugged and portable solution for whole-spectrum monitoring is a critical unmet need for Defence and other industries, and an important scientific challenge. Our approach is based on a diamond radio frequency sensor with fibre-optic readout. The project is expected to generate knowledge in the areas of quantum science and photonics ....Diamond-based wideband radiofrequency fibre-optic sensor. This project aims to address the growing problem of ultra-wide radiofrequency signal monitoring. Developing a rugged and portable solution for whole-spectrum monitoring is a critical unmet need for Defence and other industries, and an important scientific challenge. Our approach is based on a diamond radio frequency sensor with fibre-optic readout. The project is expected to generate knowledge in the areas of quantum science and photonics by integrating advanced optical fibres with quantum-grade diamond. Expected outcomes of the project include the development of a strategic academic and industry alliance through the establishment of a sovereign capability that will benefit Australia in the areas of cybersecurity and advanced manufacturing.Read moreRead less