Nanocrystalline Processing of Polycrystalline Ceramics Exhibiting the Giant Piezoelectric Effect. Piezoelectric materials interconvert electric and mechanical energy. They have been incorporated into a wide range of industrial, medical and domestic applications. The newest, known as PZN-PTs, are only available as single crystals. They have ten times the response of conventional piezoelectric materials, however they are expensive, mechanically fragile and have shape limitations. This project will ....Nanocrystalline Processing of Polycrystalline Ceramics Exhibiting the Giant Piezoelectric Effect. Piezoelectric materials interconvert electric and mechanical energy. They have been incorporated into a wide range of industrial, medical and domestic applications. The newest, known as PZN-PTs, are only available as single crystals. They have ten times the response of conventional piezoelectric materials, however they are expensive, mechanically fragile and have shape limitations. This project will tailor nanostructured intermediate states that will allow the production of stronger, more versatile polycrystalline PZN-PT ceramics. It will develop scientific results on nanocrystalline processing applicable to many materials and allow deeper insight into the mechanism of the anomalous piezoelectric response of these materials.Read moreRead less
Structural Origins of the Giant Piezoelectric Effect in Relaxor Ferroelectrics. This project addresses fundamental questions about the origins of the Giant Piezoelectric Effect. The solution of these questions will be will raise the profile of Australian science in this area as well as allowing new directions to be explored both in modifying existing materials and seeking new ones. It will expand the pool of personnel with experience in the synthesis and diffraction based study of these material ....Structural Origins of the Giant Piezoelectric Effect in Relaxor Ferroelectrics. This project addresses fundamental questions about the origins of the Giant Piezoelectric Effect. The solution of these questions will be will raise the profile of Australian science in this area as well as allowing new directions to be explored both in modifying existing materials and seeking new ones. It will expand the pool of personnel with experience in the synthesis and diffraction based study of these materials which are slated for inclusion in large numbers of 'Smart' technologies. The training of personnel in advanced diffraction methods is important in the lead up to the new Australian research reactor OPAL in 2006 and the new Australian synchrotron in 2007.Read moreRead less
Combustion Synthesis of Ternary Carbides. Ti3SiC2 belongs to a group of ternary carbides that exhibit an exciting combination of the high temperature properties of ceramics, with the electrical and thermal conductivity of metals. A great number of potential applications have been identified, however a cost effective large scale synthesis method has been lacking. Combustion synthesis, which uses the heat of reaction as the primary energy source, has great potential for this purpose. This program ....Combustion Synthesis of Ternary Carbides. Ti3SiC2 belongs to a group of ternary carbides that exhibit an exciting combination of the high temperature properties of ceramics, with the electrical and thermal conductivity of metals. A great number of potential applications have been identified, however a cost effective large scale synthesis method has been lacking. Combustion synthesis, which uses the heat of reaction as the primary energy source, has great potential for this purpose. This program will use advanced in-situ neutron diffraction experiments to map and quantify combustion synthesis reactions in the Ti-Si-C system and related systems. The results of these studies will be used to design methods of production for Ti3SiC2 and related materials.Read moreRead less
Ion implantation processing in Silicon Carbide for microelectronic applications. The aim of this project is to study the application of ion implantation to silicon carbide for dopant incorporation and defect engineering. The successful dopant incorporation, especially p-type doping will be crucial for SiC high power and high frequency devices. The outcomes of the project are (a) the understanding of extended and point defect formation in silicon carbide from ion implantation. (b) detailed charac ....Ion implantation processing in Silicon Carbide for microelectronic applications. The aim of this project is to study the application of ion implantation to silicon carbide for dopant incorporation and defect engineering. The successful dopant incorporation, especially p-type doping will be crucial for SiC high power and high frequency devices. The outcomes of the project are (a) the understanding of extended and point defect formation in silicon carbide from ion implantation. (b) detailed characterisation of the extended defects formed by ion implantation (c) establishment of dose regimes for point defects and extended defect formation and (d) development of procedures for the incorporation of dopants with minimum residual defect formation.Read moreRead less
First-Principles Engineering of Advanced Multicomponent Materials for Clean, Energy Efficient Thermoelectric and Catalytic Technologies. The quantum mechanical, first-principles calculations for studying advanced multicomponent materials and surfaces of high current technological interest will produce significant results as well as fundamental knowledge of key mechanisms that will aid in the design and tailoring of new catalytic and thermoelectric materials. The project is directly relevant to ....First-Principles Engineering of Advanced Multicomponent Materials for Clean, Energy Efficient Thermoelectric and Catalytic Technologies. The quantum mechanical, first-principles calculations for studying advanced multicomponent materials and surfaces of high current technological interest will produce significant results as well as fundamental knowledge of key mechanisms that will aid in the design and tailoring of new catalytic and thermoelectric materials. The project is directly relevant to the designated priority area - Frontier Technologies for Building and Transforming Australian Industries. It will involve collaboration with leading international experts, thus enhancing Australia's knowledge base and research capacity. This clearly has immediate benefits through the transfer and propagation of cutting-edge knowledge and skills to students and post-docs.Read moreRead less
'Designer defects' - A new approach to functional oxide interfaces. The conventional approach to metal oxide interfaces is 'perfection at all costs' with growth tuned to minimise defects and unwanted chemical intermixing. This project aims to turn this approach on its head by creating interfaces with 'designer defects' that become the critical portion of a functional device. This project proposes that one can promote functionality by making use of new physical properties that arise from the deli ....'Designer defects' - A new approach to functional oxide interfaces. The conventional approach to metal oxide interfaces is 'perfection at all costs' with growth tuned to minimise defects and unwanted chemical intermixing. This project aims to turn this approach on its head by creating interfaces with 'designer defects' that become the critical portion of a functional device. This project proposes that one can promote functionality by making use of new physical properties that arise from the deliberate introduction of structural and electronic mismatches at an interface. Such purposely induced 'designer defects' in epitaxial oxide thin films will allow new properties to be achieved in nanoscale layers. This is expected to lead to a new class of functional materials to be used in sensors and nanoelectronics.Read moreRead less
Domain wall nanoelectronics : The wall is the device. This project investigates the nanofabrication and atomic-scale manipulation of domain walls in multiferroic oxide thin films. Proximal scanning probe writing in conjunction with nanolithography is exploited to precisely engineer domain wall configurations, to be used as functional elements. The experiments will be supported by the multiscale modeling theory of multiferroics. Domain wall control and engineering is proposed as the new paradigm ....Domain wall nanoelectronics : The wall is the device. This project investigates the nanofabrication and atomic-scale manipulation of domain walls in multiferroic oxide thin films. Proximal scanning probe writing in conjunction with nanolithography is exploited to precisely engineer domain wall configurations, to be used as functional elements. The experiments will be supported by the multiscale modeling theory of multiferroics. Domain wall control and engineering is proposed as the new paradigm for multiferroics used in future nanoelectronic devices. Read moreRead less
Novel Carbon Coatings for Exceptional Performance. Carbon coatings are technologically important and have many applications in automotive and biomedical industries worldwide. An example automotive application is as a coating for high performance fuel injectors. Carbon coatings have significant unrealised potential for applications in hostile environments such as those encountered in high performance engineering components and in the human body. This project will develop new types of carbon coat ....Novel Carbon Coatings for Exceptional Performance. Carbon coatings are technologically important and have many applications in automotive and biomedical industries worldwide. An example automotive application is as a coating for high performance fuel injectors. Carbon coatings have significant unrealised potential for applications in hostile environments such as those encountered in high performance engineering components and in the human body. This project will develop new types of carbon coatings with properties and performance tailored to applications in biomedical engineering, energy conversion, automotive engineering, manufacturing and microelectronics. The result will be a range of new carbon coatings with exceptional properties and cost-effective synthesis methods.Read moreRead less
Molecular dynamic simulation and experimental study on the mechanisms of high critical current density in superconductors. The aim of this project is to establish a collaboration between the Institute for Superconducting and Electronic Materials (ISEM) and the team at Nanjing University to study the mechanisms of high critical current density (or flux pinning) in superconductors. Molecular dynamic simulation combined with experimental techniques, such as transport and magnetic measurements will ....Molecular dynamic simulation and experimental study on the mechanisms of high critical current density in superconductors. The aim of this project is to establish a collaboration between the Institute for Superconducting and Electronic Materials (ISEM) and the team at Nanjing University to study the mechanisms of high critical current density (or flux pinning) in superconductors. Molecular dynamic simulation combined with experimental techniques, such as transport and magnetic measurements will be used. The results of this work will expand our understanding of the pinning mechanisms of high temperature superconductors and MgB2 superconductors, with the hope of further enhancing the current carrying capacity, and therefore promoting the practical applications of superconductors.Read moreRead less