Reactivity of Carbon-Carbon Composites. This project investigates the reactivity of pitch-coke carbon composites with the aim of minimising oxidative carbon loss from anodes during aluminium smelting. Such carbon loss accounts for about 15 percent of the total carbon consumption in smelting, and its reduction will provide considerable economic benefit besides contributing to mitigation of greenhouse gas emission. In the present project the effect of coke calcination and composite baking temper ....Reactivity of Carbon-Carbon Composites. This project investigates the reactivity of pitch-coke carbon composites with the aim of minimising oxidative carbon loss from anodes during aluminium smelting. Such carbon loss accounts for about 15 percent of the total carbon consumption in smelting, and its reduction will provide considerable economic benefit besides contributing to mitigation of greenhouse gas emission. In the present project the effect of coke calcination and composite baking temperatures on the relationship between anode microstructure and reactivity in oxygen as well as carbon dioxide will be investigated, and optimum process conditions determined for minimum reactive carbon loss during smelting.Read moreRead less
Modelling of Pulse Current Parameters and Design of Fuzzy Logic Controller for Uniform Metal Transfer in Pulsed Gas Metal Arc Welding of Aluminium Alloy. The use of aluminium alloys in automotive and aerospace industry is growing across the world. In order to improve the use of aluminium alloy in various industries, the welding process for aluminium need to be improved. The objective of this research is to develop an intelligent controller for welding power source, which is capable of selectin ....Modelling of Pulse Current Parameters and Design of Fuzzy Logic Controller for Uniform Metal Transfer in Pulsed Gas Metal Arc Welding of Aluminium Alloy. The use of aluminium alloys in automotive and aerospace industry is growing across the world. In order to improve the use of aluminium alloy in various industries, the welding process for aluminium need to be improved. The objective of this research is to develop an intelligent controller for welding power source, which is capable of selecting process parameters automatically for varying pulse conditions in welding of aluminium alloys. The fundamental understanding about development of proposed intelligent system with smart controller for uniform metal transfer will create global interest across the welding industry and will create a new market potential throughout world where use of aluminium as a base material is growing.Read moreRead less
Reactive barriers for the remediation of fluoride contamination in groundwater. This project will build the first pilot scale calcite permeable reactive barrier for the remediation of fluoride contamination in groundwater at VAW aluminium. At VAW, fluoride has contaminated groundwater at concentrations up to 3000mg/L, levels far higher than the drinking water guideline value of 1.5mg/L. The barrier design will be based on laboratory work from a previous SPIRT project with VAW and the CIs which h ....Reactive barriers for the remediation of fluoride contamination in groundwater. This project will build the first pilot scale calcite permeable reactive barrier for the remediation of fluoride contamination in groundwater at VAW aluminium. At VAW, fluoride has contaminated groundwater at concentrations up to 3000mg/L, levels far higher than the drinking water guideline value of 1.5mg/L. The barrier design will be based on laboratory work from a previous SPIRT project with VAW and the CIs which has shown that calcite can remove 99% of fluoride contamination from water. The project will prove the technology at the field scale and provide the basis for its application to other contaminants.Read moreRead less
"Metal dusting" of austenitic alloys: mechanisms and interventions. "Metal dusting" is a catastrophic form of metal corrosion which we do not yet understand. It affects industries important to Australia: reforming of natural gas and (potentially) ceramic oxide fuel cells. This project aims to understand the process of austenitic alloy dusting, and thereby design materials to resist this form of attack. This will allow new natural gas processing industries in Australia to be internationally compe ...."Metal dusting" of austenitic alloys: mechanisms and interventions. "Metal dusting" is a catastrophic form of metal corrosion which we do not yet understand. It affects industries important to Australia: reforming of natural gas and (potentially) ceramic oxide fuel cells. This project aims to understand the process of austenitic alloy dusting, and thereby design materials to resist this form of attack. This will allow new natural gas processing industries in Australia to be internationally competitive.
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In-situ transmission electron microscopy nanoindentation investigation of advanced structural metallic materials. This project will apply in-situ transmission electron microscopy nanoindentation to understand the relationships among microstructures, deformation mechanisms and mechanical properties of advanced metallic materials, including nanostructured alloys and metallic amorphous-crystalline composites. The results will deliver the fundamental science to design materials with optimum mechanic ....In-situ transmission electron microscopy nanoindentation investigation of advanced structural metallic materials. This project will apply in-situ transmission electron microscopy nanoindentation to understand the relationships among microstructures, deformation mechanisms and mechanical properties of advanced metallic materials, including nanostructured alloys and metallic amorphous-crystalline composites. The results will deliver the fundamental science to design materials with optimum mechanical properties for a wide range of applications, such as fuel-efficient aircraft and road vehicles. The project will bring a cutting-edge technique to Australian science that adds an important arm to our already prominent research strengths in materials science, and will provide Australian scientists greater capability to understand and design advanced materials.Read moreRead less
Quantitative Atom Probe Tomography for Nanostructural Analysis of Materials. The ultimate in microscopy would involve the ability to image and chemically identify every atom or molecule in a specimen. This project involves the development of reconstruction and analysis methodologies for more accurately determining relative atomic positions in atom probe tomography. We will develop a comprehensive, platform-independent approach to enable quantitative atom probe tomography for the Australian resea ....Quantitative Atom Probe Tomography for Nanostructural Analysis of Materials. The ultimate in microscopy would involve the ability to image and chemically identify every atom or molecule in a specimen. This project involves the development of reconstruction and analysis methodologies for more accurately determining relative atomic positions in atom probe tomography. We will develop a comprehensive, platform-independent approach to enable quantitative atom probe tomography for the Australian research community. This development will be used to address current questions on the influence of the chemistry, crystallography, type and dispersion of sub-critical atomic clusters and supra-critical nanoscale precipitates on the strengthening mechanisms in light alloys used for structural applications in transport.Read moreRead less
Development of a novel process for recovering fluoride from spent pot-lining as AlF2(OH) using industrial waste solutions. Every year approximately 40,000 tonnes of a hazardous waste known as spent pot-lining is generated by Australia’s aluminium industry. It contains significant levels of leachable cyanide and fluoride and is currently being stored awaiting a suitable treatment technology. This project will develop a novel low-energy and low-cost process for extracting the fluoride as a usefu ....Development of a novel process for recovering fluoride from spent pot-lining as AlF2(OH) using industrial waste solutions. Every year approximately 40,000 tonnes of a hazardous waste known as spent pot-lining is generated by Australia’s aluminium industry. It contains significant levels of leachable cyanide and fluoride and is currently being stored awaiting a suitable treatment technology. This project will develop a novel low-energy and low-cost process for extracting the fluoride as a useful aluminium fluoride product that can be recycled back into the aluminium industry; destroy the cyanide; and recover other components for use in the metallurgical industry. If commercialised the benefit will be an end to the stockpiling of spent pot-lining in Australia, a more sustainable aluminium industry, and protection of the world’s natural fluoride resources.Read moreRead less
A Novel Surface Alloying Technique to Improve the Corrosion and Wear Resistance of Magnesium Alloys. Surface mechanical attrition treatment will be used to generate nanometer-sized grains in the surface layer of engineering magnesium alloys, and therefore activate the surface of this material. Together with the use of efficient activators, the project will develop a novel low temperature surface alloying technique to significantly improve the wear and corrosion resistance of magnesium alloys wi ....A Novel Surface Alloying Technique to Improve the Corrosion and Wear Resistance of Magnesium Alloys. Surface mechanical attrition treatment will be used to generate nanometer-sized grains in the surface layer of engineering magnesium alloys, and therefore activate the surface of this material. Together with the use of efficient activators, the project will develop a novel low temperature surface alloying technique to significantly improve the wear and corrosion resistance of magnesium alloys without changing the substrate properties. Microstructural features and the wear and corrosion resistance of the ultrafine-grained surface layer will be examined. In addition, it may be possible to combine the surface alloying process with the conventional ageing process together in order to save energy.Read moreRead less
The Development of High Strength Aluminium and Magnesium Alloys Using "Edge-to-edge" Matching Model. The theoretical, crystallographic "edge-to-edge" matching model for diffusion-controlled phase transformations will be applied to the practical development of improved industrial aluminium and magnesium alloys with assistance of computer simulations. The model will be used to enhance the precipitation hardening response and to identify more effective grain refiners in these light alloys. The aim ....The Development of High Strength Aluminium and Magnesium Alloys Using "Edge-to-edge" Matching Model. The theoretical, crystallographic "edge-to-edge" matching model for diffusion-controlled phase transformations will be applied to the practical development of improved industrial aluminium and magnesium alloys with assistance of computer simulations. The model will be used to enhance the precipitation hardening response and to identify more effective grain refiners in these light alloys. The aims will be the development of one high strength aluminium alloy with good ductility and one high strength magnesium alloy with good creep resistance at elevated temperatures. A computer program that will help to identify the most effective grain refiners for specific light alloys will also be produced.Read moreRead less
Low temperature carbothermal reduction of alumina. Australia is the world's largest producer of alumina and bauxite; and the aluminium industry is our second largest commodity exporter. This project targets the development of fundamentals of an advanced technology for aluminium production with advantages of low energy consumption, low production costs and being more environment-friendly. This frontier technology will enhance the competitiveness of the Australian aluminium industry and contribute ....Low temperature carbothermal reduction of alumina. Australia is the world's largest producer of alumina and bauxite; and the aluminium industry is our second largest commodity exporter. This project targets the development of fundamentals of an advanced technology for aluminium production with advantages of low energy consumption, low production costs and being more environment-friendly. This frontier technology will enhance the competitiveness of the Australian aluminium industry and contribute to making an environmentally sustainable Australia. The project will also provide high quality education to final year undergraduate students. The project will contribute to the theory of metallurgical processes, particularly to the gas-solid reactions in the reduction and carburisation processes. Read moreRead less