Metal-air batteries with improved rate capability and safety for hearing applications. Hearing impairment affects on average 20% of the adult population in western society, with the impact being as high as 50% in older adults. Effective hearing devices require a significant amount of power, supplied by a battery, to support their function. Current batteries require very frequent replacement and represent a significant impediment to advances in the technology. This project will develop improved ....Metal-air batteries with improved rate capability and safety for hearing applications. Hearing impairment affects on average 20% of the adult population in western society, with the impact being as high as 50% in older adults. Effective hearing devices require a significant amount of power, supplied by a battery, to support their function. Current batteries require very frequent replacement and represent a significant impediment to advances in the technology. This project will develop improved energy and power density batteries which will lead to immediate implementation of more powerful signal processing algorithms, making hearing aids much more effective and appealing to the user. This, in turn, will improve recipient compliance and thus the quality of life for those with severe hearing impairment. Read moreRead less
Development of Deformation-Mechanism Based Parameters for Improved Design of Hard Coatings. The use of thin hard abrasion-resistant coatings is an important method for significantly improving the operational lifetime of components in a wide range of mechanical, biomedical and sensory applications. The optimal design of these coatings is however severely restricted by a lack of detailed knowledge of their material deformation mechanisms. The proposed project will use novel nano-indentation and el ....Development of Deformation-Mechanism Based Parameters for Improved Design of Hard Coatings. The use of thin hard abrasion-resistant coatings is an important method for significantly improving the operational lifetime of components in a wide range of mechanical, biomedical and sensory applications. The optimal design of these coatings is however severely restricted by a lack of detailed knowledge of their material deformation mechanisms. The proposed project will use novel nano-indentation and electron microscope techniques to create a basis for mechanism-based deformation models. These models will then be used to develop new coating architectures with improved operational lifetimes as well as predicting coating lifetimes and developing simple tools for coating assessment.Read moreRead less
Synthesis and processing of fine powders and nano-materials by electric discharge assisted milling under hot and cold plasmas. The discovery of a new materials synthesis and processing technique, called Electric Discharge Assisted Ball Milling, has generated great interest within the materials science community. Preliminary results, recently published in Nature, have demonstrated that mechanical milling using both hot and cold plasmas can result in extremely rapid synthesis of a wide range of ma ....Synthesis and processing of fine powders and nano-materials by electric discharge assisted milling under hot and cold plasmas. The discovery of a new materials synthesis and processing technique, called Electric Discharge Assisted Ball Milling, has generated great interest within the materials science community. Preliminary results, recently published in Nature, have demonstrated that mechanical milling using both hot and cold plasmas can result in extremely rapid synthesis of a wide range of materials. The fundamental mechanisms for this rapid mechano-synthesis method will be elucidated by detailed studies of a range of technologically important materials including, ultrafine, nanostructural and nanosized powders, carbides, nitrides and borides, and energy efficient high surface area products for hydrogen storage and electrode applications.Read moreRead less
Crack Propagation within Graded Interfaces. Functionally graded interfaces are a technologically new way of joining materials in a wide range of biomedical and industrial applications. The reduction in the interfacial stresses resulting from the graded interface increases the structural integrity of the component, however, existing models do not fully address issues of plasticity and cyclic fatigue to their fracture. The intention of this study is to investigate how modifications to the ductil ....Crack Propagation within Graded Interfaces. Functionally graded interfaces are a technologically new way of joining materials in a wide range of biomedical and industrial applications. The reduction in the interfacial stresses resulting from the graded interface increases the structural integrity of the component, however, existing models do not fully address issues of plasticity and cyclic fatigue to their fracture. The intention of this study is to investigate how modifications to the ductile reinforcement phase and how the cyclic loading influence crack extension within a graded interface. These results will assist in future design and prediction of the in-service lifetime of components containing gradient interfaces.Read moreRead less
Beyond Phononic Crystals-Building New Concepts to Enhance Thermoelectricity. Waste heat, which is discharged into the environment from industrial plants and vehicle exhausts, represents a huge amount of lost energy and is a major contributor to global warming. Thermoelectric materials, which can generate electricity from the waste heat, could play an important role in a global sustainable energy solution while reducing greenhouse emissions. This program is aimed at experimental and theoretical d ....Beyond Phononic Crystals-Building New Concepts to Enhance Thermoelectricity. Waste heat, which is discharged into the environment from industrial plants and vehicle exhausts, represents a huge amount of lost energy and is a major contributor to global warming. Thermoelectric materials, which can generate electricity from the waste heat, could play an important role in a global sustainable energy solution while reducing greenhouse emissions. This program is aimed at experimental and theoretical development of new concepts to engineer the interfaces with various atomic stacking sequence of two complex oxides and also the three-dimensional binary nanocube superlattices to enhance the energy conversion efficiency of oxide based thermoelectric materials by several times over today's state-of-the-art.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
Control of Nano-Structure for Enhancing the Performance of Magnesium Diboride Superconductor by Chemical Doping. Superconductor technology will play a significant role in a wide range of industry sectors and environments in the twenty first century. Widespread applications now depend significantly on cost-effective resolution of fundamental materials and fabrication issues. The aim of the proposed program is to bring together international experts from four leading groups to tailor the microstru ....Control of Nano-Structure for Enhancing the Performance of Magnesium Diboride Superconductor by Chemical Doping. Superconductor technology will play a significant role in a wide range of industry sectors and environments in the twenty first century. Widespread applications now depend significantly on cost-effective resolution of fundamental materials and fabrication issues. The aim of the proposed program is to bring together international experts from four leading groups to tailor the microstructure at nanoscale to improve flux pinning and the critical current density of the newly discovered magnesium diboride superconductors through readily available chemical doping. The expected outcome is the capability to produce a new generation of superconductors having high performance at low costRead moreRead less
Novel bioderived and biodegradable wood plastic composites from wastes. This project pioneers the development of high performance wood plastic composites from polyhydroxyalkanoates (PHAs) generated from pulp and paper waste. The key innovations are: developing a new bioderived and biodegradable high performance wood fibre composite with improved melt flow leading to better binding; and making direct use of PHA-rich biomass so avoiding the cost and environmental burden of polymer extraction. The ....Novel bioderived and biodegradable wood plastic composites from wastes. This project pioneers the development of high performance wood plastic composites from polyhydroxyalkanoates (PHAs) generated from pulp and paper waste. The key innovations are: developing a new bioderived and biodegradable high performance wood fibre composite with improved melt flow leading to better binding; and making direct use of PHA-rich biomass so avoiding the cost and environmental burden of polymer extraction. The project aims to lead to new products and more diverse markets for the Australian forestry industry and maximise Australia’s competitive advantage in biomass-based product development.Read moreRead less
Advanced high strength steels produced by energy efficient direct strip casting. Over one billion tonnes of steel is produced every year and one method of reducing the environmental footprint of this production is through strip casting. This process reduces the energy required to process liquid steel into thin sheet product by an astounding 90 per cent. This proposal aims to expand the application of this technology to new steel grades.
The development of super-toughened epoxies using a novel nanomaterial. Epoxy resins are widely used as structural adhesives and coatings in engineering structures. This project will address the problem of the intrinsic brittleness of epoxy by making it significantly tougher with superior performance and cost-effectiveness. Our technology for producing super-toughened epoxy will lead to a wide range of applications for new and existing products in the construction, automotive, aerospace, adhesive ....The development of super-toughened epoxies using a novel nanomaterial. Epoxy resins are widely used as structural adhesives and coatings in engineering structures. This project will address the problem of the intrinsic brittleness of epoxy by making it significantly tougher with superior performance and cost-effectiveness. Our technology for producing super-toughened epoxy will lead to a wide range of applications for new and existing products in the construction, automotive, aerospace, adhesive and microelectronics industries.Read moreRead less