CNTs-modified polymer composites for tribological applications. The growth of the Australian economy relies on continuous improvements in all sectors of production, manufacturing, operation and management where tribology is playing a significant role. System failure relevant to wear and friction over years and its impact on the Australian economy have continued to be a challenge for the community in the new century. The project is at the forefront of materials research, and the outcomes will pro ....CNTs-modified polymer composites for tribological applications. The growth of the Australian economy relies on continuous improvements in all sectors of production, manufacturing, operation and management where tribology is playing a significant role. System failure relevant to wear and friction over years and its impact on the Australian economy have continued to be a challenge for the community in the new century. The project is at the forefront of materials research, and the outcomes will provide (1) novel technical ways to optimise tribological performance of industrial contacting components, and (2) development of new wear resistant materials. The project will give Australia a competitive edge in the advances of tribology and nanotechnologyRead moreRead less
A Self-Repairing Entropy-Stabilized Oxide as a Protective Coating. All biological organisms, from plants to living creatures, can heal minor wounds and damages. Based on the recent breakthrough by the CI’s team, this project aims to design and develop a new oxide containing multiple elements in a form of (AlCoCrCu0.5FeNi)3O4 that can resist damages through a self-repairing mechanism. Fabricated by radio frequency (RF) magnetron sputtering, this extraordinary self-repairing phenomenon makes this ....A Self-Repairing Entropy-Stabilized Oxide as a Protective Coating. All biological organisms, from plants to living creatures, can heal minor wounds and damages. Based on the recent breakthrough by the CI’s team, this project aims to design and develop a new oxide containing multiple elements in a form of (AlCoCrCu0.5FeNi)3O4 that can resist damages through a self-repairing mechanism. Fabricated by radio frequency (RF) magnetron sputtering, this extraordinary self-repairing phenomenon makes this new material highly desirable as a coating to protect structures and machinery working in hash conditions. Therefore, it has broad applications in space technologies, nuclear power facilities and aerospace industry, as well as in shipbuilding industry. Read moreRead less
Building Novel Solid State Electric Double Layer Transistors with Interface Engineering of Ionic Conductive Oxide Superlattices. Transistors are the fundamental building blocks of modern electronic devices, which continue to diminish in size to achieve higher speeds. However, the development of this technology has been impeded by low carrier density in the gate dielectric materials. Therefore, increasing the attainable carrier density has become critically important for both scientific research ....Building Novel Solid State Electric Double Layer Transistors with Interface Engineering of Ionic Conductive Oxide Superlattices. Transistors are the fundamental building blocks of modern electronic devices, which continue to diminish in size to achieve higher speeds. However, the development of this technology has been impeded by low carrier density in the gate dielectric materials. Therefore, increasing the attainable carrier density has become critically important for both scientific research and industrial applications. This project aims at experimental and theoretical development of advanced ionic conductive oxide superlattices with colloidal nanocubes for novel solid state electric double layer transistors, which possess ultrahigh carrier density and mobility, to surmount the fundamental limit of current silicon semiconductor technologies.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE120102664
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
A micro-compression study of aluminium alloys: establishing the nanoscale mechanisms of precipitate-induced strengthening to achieve stronger alloys. This project will study the strengthening mechanisms of aluminium alloys by directly observing how dislocations interact with solute nanostructures. The research will advance our knowledge of dislocation dynamics in precipitation-strengthening alloys, and provide a quantitative method for controlling those nanostructures to achieve higher strength ....A micro-compression study of aluminium alloys: establishing the nanoscale mechanisms of precipitate-induced strengthening to achieve stronger alloys. This project will study the strengthening mechanisms of aluminium alloys by directly observing how dislocations interact with solute nanostructures. The research will advance our knowledge of dislocation dynamics in precipitation-strengthening alloys, and provide a quantitative method for controlling those nanostructures to achieve higher strength alloys.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
Electrical arc machining of polycrystalline diamond with a wheel electrode. This project aims to discover new theories to overcome the core challenge in electrical discharge machining of polycrystalline diamond. Diamond materials provide the ultimate performance in cutting difficult-to-machine materials such as titanium alloys which are widely used in the aerospace and biomedical industries. However, the extremely slow erosion speed of electrical discharge machining severely impedes their applic ....Electrical arc machining of polycrystalline diamond with a wheel electrode. This project aims to discover new theories to overcome the core challenge in electrical discharge machining of polycrystalline diamond. Diamond materials provide the ultimate performance in cutting difficult-to-machine materials such as titanium alloys which are widely used in the aerospace and biomedical industries. However, the extremely slow erosion speed of electrical discharge machining severely impedes their applications. The project will use high energy electrical arcs for the fast machining of polycrystalline diamond. The expected outcome is a new approach and breakthroughs in fundamental knowledge that pave the way for developing new electrical machining methods and lead to significant reductions in manufacturing costs.Read moreRead less
Temper Development Using Secondary Precipitation for Stress Corrosion Cracking Resistance in 7xxx Series Alumimium Alloys. The work has the potential for very substantial benefit to Australia. Novel stress corrosion cracking resistant tempers with improved strength have the potential for widespread application in the aircraft industry. Since the patent for the interrupted ageing process is held by CSIRO there is the potential for substantial economic benefit to Australia from the licensing of th ....Temper Development Using Secondary Precipitation for Stress Corrosion Cracking Resistance in 7xxx Series Alumimium Alloys. The work has the potential for very substantial benefit to Australia. Novel stress corrosion cracking resistant tempers with improved strength have the potential for widespread application in the aircraft industry. Since the patent for the interrupted ageing process is held by CSIRO there is the potential for substantial economic benefit to Australia from the licensing of the novel tempers world-wide. Additionally, it would be possible to develop the novel tempers in-situ on existing aircraft structures to improve their performance. This would be of particular benefit to the Royal Australian Airforce with its fleet of ageing aircraft.Read moreRead less
Nanostructuring and nanocharacterisation of organic semiconductor devices. This research project will utilise new approaches to pattern organic solar cells on the nanoscale to realise improved efficiencies and improved understanding of device operation. It will also develop soft x-ray techniques to probe the nanostructure of organic semiconductor films with increased chemical and interfacial specificity.
Using anisotropic thermal expansion in organic semiconductor thin films. This project aims to capitalise upon the recent discovery of negative thermal expansion in high-performance organic semiconductor films. Certain molecules’ chemical structures have a planar conjugated core and flexible sidechains. When highly anisotropic thermal expansion occurs, the sidechains take up most of the thermal expansion. When a negative thermal expansion occurs, the pi-pi stacking distance decreases upon anneali ....Using anisotropic thermal expansion in organic semiconductor thin films. This project aims to capitalise upon the recent discovery of negative thermal expansion in high-performance organic semiconductor films. Certain molecules’ chemical structures have a planar conjugated core and flexible sidechains. When highly anisotropic thermal expansion occurs, the sidechains take up most of the thermal expansion. When a negative thermal expansion occurs, the pi-pi stacking distance decreases upon annealing. This effect has been linked with higher charge mobilities, and a tighter molecular packing is locked in upon cooling. The potential applications of these high performance organic semiconductors includes chemical/biosensors, electronic paper, and radio frequency identification cards.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