Multi-Scale Model-Based Simulation of Glass Fragmentation under Blast Loading. It is estimated that most injuries from bomb blasts can be attributed to airborne sharp glass fragments. The proposed project will help us gain better understanding of glass failure mechanism under impact/blast loading. The results from the proposed project are expected to help in developing more effective blast-resistant transparency, ensuring the reliability and quality of buildings and facilities, mitigating injury ....Multi-Scale Model-Based Simulation of Glass Fragmentation under Blast Loading. It is estimated that most injuries from bomb blasts can be attributed to airborne sharp glass fragments. The proposed project will help us gain better understanding of glass failure mechanism under impact/blast loading. The results from the proposed project are expected to help in developing more effective blast-resistant transparency, ensuring the reliability and quality of buildings and facilities, mitigating injury or death due to flying glass fragments, and eventually enhancing public safety and security.Read moreRead less
Viscous extensional flow and drop breakoff. Honey falling from a spoon is an everyday example of a viscous fluid in a free extensional flow which may eventually break up into drops. Such flows are important in modern technologies including ink-jet printing, welding, soldering and molten metal processing, polymer and glass fibre spinning, and for rheological measurement. We seek to increase understanding of the mechanisms governing such flows, particularly the role of initial conditions and the ....Viscous extensional flow and drop breakoff. Honey falling from a spoon is an everyday example of a viscous fluid in a free extensional flow which may eventually break up into drops. Such flows are important in modern technologies including ink-jet printing, welding, soldering and molten metal processing, polymer and glass fibre spinning, and for rheological measurement. We seek to increase understanding of the mechanisms governing such flows, particularly the role of initial conditions and the geometry of the original containing vessel, together with balances between forces such as inertia, gravity, viscosity, viscoelasticity, and surface tension, through a theoretical, computational and experimental study of the fluid mechanics.Read moreRead less
Early animal evolution: reconstructing the last common metazoan ancestor through the analysis of developmental and structural genes in sponges. All animals, from the simplest invertebrates to humans, arose from a common ancestor. Reconstruction of this ancestor requires the comparison of metazoan developmental genetic architectures. Here we contribute to this pursuit by studying a phylogenetically and biological appropriate metazoan system - marine sponge embryos and larvae. Using high-throughp ....Early animal evolution: reconstructing the last common metazoan ancestor through the analysis of developmental and structural genes in sponges. All animals, from the simplest invertebrates to humans, arose from a common ancestor. Reconstruction of this ancestor requires the comparison of metazoan developmental genetic architectures. Here we contribute to this pursuit by studying a phylogenetically and biological appropriate metazoan system - marine sponge embryos and larvae. Using high-throughput gene profiling techniques, we will analyse the developmental genetics underlying the sponge body plan. Commonalities shared between sponges and more sophisticated animals are likely to have been present in the "genetic toolkit" of the most ancient metazoan ancestor and, as such, is the genetic foundation from which all animal biodiversity arose.Read moreRead less
Complex Dopant Diffusivity in Photonic Crystal Fibres and Applications. The outcomes of this research in the area of doped photonic crystal fibres will enable Australia to commercialise the technology and provide an opportunity for leading commercial ventures using novel doped PCF. These opportunities will eventually become large-scale industrial activities developed from the research in fields such as sensing, biophotonics, medical and defence and will result in significant economic benefit for ....Complex Dopant Diffusivity in Photonic Crystal Fibres and Applications. The outcomes of this research in the area of doped photonic crystal fibres will enable Australia to commercialise the technology and provide an opportunity for leading commercial ventures using novel doped PCF. These opportunities will eventually become large-scale industrial activities developed from the research in fields such as sensing, biophotonics, medical and defence and will result in significant economic benefit for Australia. Fundamental research outcomes in glass and dopants that can boost devices and introduce novel devices resulting from this project will contribute to all National Research Priorities.Read moreRead less
A New Paradigm for the Solid State Synthesis of Layered Materials. Advanced ceramic materials with outstanding properties or combinations of properties are usually made from three (ternary) or more components. Their solid-state synthesis is hampered by the formation and retention of intermediate phases which degrade their performance. We have devised a method for circumventing intermediate phase formation in advanced materials and reducing synthesis temperatures by up to 600 degrees. This projec ....A New Paradigm for the Solid State Synthesis of Layered Materials. Advanced ceramic materials with outstanding properties or combinations of properties are usually made from three (ternary) or more components. Their solid-state synthesis is hampered by the formation and retention of intermediate phases which degrade their performance. We have devised a method for circumventing intermediate phase formation in advanced materials and reducing synthesis temperatures by up to 600 degrees. This project will explore the underlying atomic scale mechanism of the method. This knowledge will allow the low cost, low greenhouse gas emission synthesis of advanced ceramics for use in renewable, conventional and nuclear power generation.Read moreRead less
Manufacture of precision optical components: ground-breaking through innovative constitutive modeling. It has been a worldwide challenge to make high precision optical elements using glass moulding though it is the most effective process. This project aims to develop a novel way to optimise precision glass moulding processes. The success of this research will significantly reduce the development cost and improve the quality of the moulding products.
Understanding and optimising the microstructure of Germanium-Arsenic-Selenium glasses for superior device performance. The project will seek to use a combined theoretical and experimental approach to develop 'state of the art' optical glass materials for use in integrated nonlinear optical components. Such materials could be used as optical waveguides in broadband communication systems and offer the possibility of significant improvement in telecommunication performance.
New Pillared Nanoporous Materials for Hydrogen Production by Photoinduced Water Splitting. The increasing concern over the limited supply of conventional energy sources has triggered world-wide efforts in developing alternative energy generation systems. Hydrogen produced from sunlight and water is considered as an ultimate solution for the hydrogen economy. This project addresses the material needs for more efficient and cleaner means of generating/utilising energy. The novel nanoporous materia ....New Pillared Nanoporous Materials for Hydrogen Production by Photoinduced Water Splitting. The increasing concern over the limited supply of conventional energy sources has triggered world-wide efforts in developing alternative energy generation systems. Hydrogen produced from sunlight and water is considered as an ultimate solution for the hydrogen economy. This project addresses the material needs for more efficient and cleaner means of generating/utilising energy. The novel nanoporous materials with increased photocatalytic water splitting efficiency will lead to new breakthrough in technologies for energy conversion materials. The preparation approach is also applicable to other functional layered materials, providing new opportunities for innovative nanotechnology to more efficient and greener energy industries.Read moreRead less
Failure of Complex Biomechanical Structures. Layer structures are replete in biological systems, both natural and artificial. Issues concerning the lifetime of such systems are paramount to the quality of life and economic well being of our aging society. Our project will analyse damage in brittle layer systems that simulate dental crown structures. We are now at a critical point in the understanding of how these structures fail, and are beginning to make substantive predictions to improve des ....Failure of Complex Biomechanical Structures. Layer structures are replete in biological systems, both natural and artificial. Issues concerning the lifetime of such systems are paramount to the quality of life and economic well being of our aging society. Our project will analyse damage in brittle layer systems that simulate dental crown structures. We are now at a critical point in the understanding of how these structures fail, and are beginning to make substantive predictions to improve designs for prolonged life. The project is connected to the dental community and international crown material manufacturers through a broader NIH project in the USA. The improved materials and crown designs resulting from this project will have impact worldwide, including Australia.Read moreRead less
Production and nano-characterisation of II-VI semiconductor quantum dots from plant cell cultures. Nanocrystallites with semiconductor properties have potential applications in medicine, microelectronics and waste treatment. Cheap, reliable methods for producing large quantities of monodisperse nanoparticles are required. Solution techniques have been used most commonly; however, production of stable, high-quality particles remains difficult. Biological synthesis using plant cell culture offers ....Production and nano-characterisation of II-VI semiconductor quantum dots from plant cell cultures. Nanocrystallites with semiconductor properties have potential applications in medicine, microelectronics and waste treatment. Cheap, reliable methods for producing large quantities of monodisperse nanoparticles are required. Solution techniques have been used most commonly; however, production of stable, high-quality particles remains difficult. Biological synthesis using plant cell culture offers several important advantages. As peptide capping is incorporated into the biological assembly process, the nanoparticles are restricted in size, their stability is improved, and their surfaces are passivated. Application of plant cultures for nanocrystallite production is a novel approach with the potential to yield significant improvements in the quality of manufactured quantum dots.Read moreRead less