Mechanics of micro/nanoscale multilayers: theories and applications. The purpose of the project is to develop novel theoretical models, advanced numerical techniques and guidelines for the design and application of micro/nanoscale multilayers. The expected outcomes are fundamental contributions to the knowledge base of micro/nanoscale multilayered materials which are increasingly used in micro/nanotechnology.
Increase in Photocatalytic Activity of TiO2 through Intervalence Charge Transfer. Titanium dioxide (TiO2) has many proposed and realised applications in energy and the environment. The main problem that has hindered development and commercialisation of devices using TiO2 is its low photocatalytic activity, which results from its poor absorption of visible and infrared light. Most researchers modify the properties of TiO2 by conventional electrochemical methods to improve its performance but the ....Increase in Photocatalytic Activity of TiO2 through Intervalence Charge Transfer. Titanium dioxide (TiO2) has many proposed and realised applications in energy and the environment. The main problem that has hindered development and commercialisation of devices using TiO2 is its low photocatalytic activity, which results from its poor absorption of visible and infrared light. Most researchers modify the properties of TiO2 by conventional electrochemical methods to improve its performance but these attempts have been of limited success. The present research involves a completely new approach to the problem, which is based on the method used in the heat treatment of sapphire to improve its colour. This approach uses a phenomenon involving the modification of the optical properties to improve its absorption of light.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE100100195
Funder
Australian Research Council
Funding Amount
$1,000,000.00
Summary
Field-emission gun transmission electron microscope for the research in nanomaterials, metal alloys and biological sciences. The proposed facility is required by a large range of world-leading research programs in light metals, nanomaterials, fibres and biomaterials. These research programs are strongly supported by automobile, textile, mineral and advanced materials industries that have important roles in the current national economy and local communities. The facility will improve significan ....Field-emission gun transmission electron microscope for the research in nanomaterials, metal alloys and biological sciences. The proposed facility is required by a large range of world-leading research programs in light metals, nanomaterials, fibres and biomaterials. These research programs are strongly supported by automobile, textile, mineral and advanced materials industries that have important roles in the current national economy and local communities. The facility will improve significantly our current research ability and help the creation of new research areas in nanotechnology and energy materials beneficial to clean energy, environmental protections and health care. It is also important equipment for new research student training.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE210100975
Funder
Australian Research Council
Funding Amount
$415,775.00
Summary
Architectured ceramics to combine strength, toughness, and complex shapes. This project aims to develop ceramics that are simultaneously strong and tough, and to form them into complex shapes without compromising their mechanical properties – major challenges in science and engineering. Inspired by the internal architectures that confer these advantages on natural hard materials, it will produce novel ceramics with rationally-designed, highly-controlled dense architectures by developing a fast, ....Architectured ceramics to combine strength, toughness, and complex shapes. This project aims to develop ceramics that are simultaneously strong and tough, and to form them into complex shapes without compromising their mechanical properties – major challenges in science and engineering. Inspired by the internal architectures that confer these advantages on natural hard materials, it will produce novel ceramics with rationally-designed, highly-controlled dense architectures by developing a fast, scalable and versatile light-based 3D–4D printing technique combined with discrete element modelling. Outcomes will be toughened ceramics and new knowledge on processing-architecture-performance relationships, with significant benefits for biomaterials, defence, transport, high-temperature and aerospace applications.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE160100155
Funder
Australian Research Council
Funding Amount
$648,000.00
Summary
NanoMin; Quantitative Mineral Mapping of Nanoscale Processes. NanoMin: quantitative mineral mapping of nanoscale processes:
The project seeks to establish an electron microscope-based mineral mapping and analysis facility to provide rapid, quantitative and statistically reliable mineralogical, petrographic and metallurgical data unobtainable by other means in fine-grained materials. The proposed equipment can identify minerals in complex mixtures of sub-µm-grain size materials by virtue of an i ....NanoMin; Quantitative Mineral Mapping of Nanoscale Processes. NanoMin: quantitative mineral mapping of nanoscale processes:
The project seeks to establish an electron microscope-based mineral mapping and analysis facility to provide rapid, quantitative and statistically reliable mineralogical, petrographic and metallurgical data unobtainable by other means in fine-grained materials. The proposed equipment can identify minerals in complex mixtures of sub-µm-grain size materials by virtue of an integrated software and hardware system called NanoMin which incorporates a spectral deconvolution engine combined with a mineral spectra database. A key limitation in understanding complex materials is sub-micron to nanometer scale spatial variability of mineralogical phases. Imaging and quantifying these phases is now possible with the NanoMin system. This promises to open up petrological, geobiological, and materials science research in complex fine-grained materials.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
Some Outstanding Mechanics Problems in Layered Ferroelectromagnetic Composites with Enhanced Magnetoelectric Effect. The proposed research has high impact on both science and technology of ferroelectromagnetic materials. The outcomes will expand Australia's knowledge base and research capability in this emerging field. Relevant industries, such as smart materials and devices, can benefit from the results of this project. The theoretical, experimental and numerical results can be directly transfo ....Some Outstanding Mechanics Problems in Layered Ferroelectromagnetic Composites with Enhanced Magnetoelectric Effect. The proposed research has high impact on both science and technology of ferroelectromagnetic materials. The outcomes will expand Australia's knowledge base and research capability in this emerging field. Relevant industries, such as smart materials and devices, can benefit from the results of this project. The theoretical, experimental and numerical results can be directly transformed to design and application guidelines for the materials engineers and scientists to develop innovative and structurally/functionally reliable ferroelectromagnetic composites and their various devices and products.Read moreRead less
Surface Polymorphism of Hard Brittle Materials. The knowledge gained from this project will be of great value in creating components of hard brittle materials with enhanced properties and expanded margins of application. The outcome will have impact on the ultra-precision manufacturing giving a competitive edge to the Australian fabrication industry. The fundamental knowledge gained from this project has the potential to facilitate the development of new devices and techniques such as those requ ....Surface Polymorphism of Hard Brittle Materials. The knowledge gained from this project will be of great value in creating components of hard brittle materials with enhanced properties and expanded margins of application. The outcome will have impact on the ultra-precision manufacturing giving a competitive edge to the Australian fabrication industry. The fundamental knowledge gained from this project has the potential to facilitate the development of new devices and techniques such as those required for bio-medical, photonic and electronic technologies.Read moreRead less
Engineering of Crystalline Ternary Ceramic Precursors. Ti3SiC2 belongs to a large group of ternary carbides that exhibit an unique combination of high temperature ceramic properties, with the electrical and thermal conductivity of metals. A great number of potential applications have been identified, but are currently limited by residual intermediate compounds, that degrade the properties. This project will use crystal structure similarities between TiCx and Ti3SiC2 to engineer a crystalline pre ....Engineering of Crystalline Ternary Ceramic Precursors. Ti3SiC2 belongs to a large group of ternary carbides that exhibit an unique combination of high temperature ceramic properties, with the electrical and thermal conductivity of metals. A great number of potential applications have been identified, but are currently limited by residual intermediate compounds, that degrade the properties. This project will use crystal structure similarities between TiCx and Ti3SiC2 to engineer a crystalline precursor, Ti3C2, which circumvents intermediate compound formation. This innovative methodology will also reduce the cost and time of fabrication. Advanced in-situ neutron diffraction techniques will be used to quantify the synthesis kinetics and optimize the method.Read moreRead less
Oxide Bioceramics for Drug Delivery. Australia has the highest rate of skin cancer in the world. One out of every two Australians will develop skin cancer at some stage during their lives. On average, 740,000 new cases of skin cancer are diagnosed in Australia every year (1 million in the USA). The cost to Australia is over $200 million/year. While today more people are aware of the dangers of UV, the desire to be fashionable outweighs their health concerns. Melanotan is a novel sunscreen soluti ....Oxide Bioceramics for Drug Delivery. Australia has the highest rate of skin cancer in the world. One out of every two Australians will develop skin cancer at some stage during their lives. On average, 740,000 new cases of skin cancer are diagnosed in Australia every year (1 million in the USA). The cost to Australia is over $200 million/year. While today more people are aware of the dangers of UV, the desire to be fashionable outweighs their health concerns. Melanotan is a novel sunscreen solution: a drug that stimulates the body's natural defence mechanism against UV light. Alumina and zirconia bioceramics are ideal implantable drug delivery vehicles because of the long leaching periods possible.Read moreRead less