Cyclic Fatigue Mechanisms in New Lead-Free Piezoelectric Ceramics. Piezoceramics are an important component in many items in modern day Australian life. However, they present a growing environmental concern, particularly for disposal, because they contain lead oxide and must often be disposed of prematurely due to component failure. Furthermore, many key Australian industries manufacture and use piezoceramics in fields ranging from mineral exploration, to imaging to biomedical devices. This proj ....Cyclic Fatigue Mechanisms in New Lead-Free Piezoelectric Ceramics. Piezoceramics are an important component in many items in modern day Australian life. However, they present a growing environmental concern, particularly for disposal, because they contain lead oxide and must often be disposed of prematurely due to component failure. Furthermore, many key Australian industries manufacture and use piezoceramics in fields ranging from mineral exploration, to imaging to biomedical devices. This project will enable the development of lead-free alternatives to current materials and more reliable materials which will reduce the need for waste disposal.Read moreRead less
Development of Cyclic Fatigue Degradation Criteria for Piezoelectric Ceramic Components. Piezoelectric ceramics are widely used in advanced engineering applications such as actuators in the automotive industry, sonars for submarine mineral exploration and defence, and a broad range of medical devices, e.g. ultrasound probes. The reliable operational lifetime of these devices is, however, severely limited because they suffer cyclic fatigue leading to both degradation in performance and device fai ....Development of Cyclic Fatigue Degradation Criteria for Piezoelectric Ceramic Components. Piezoelectric ceramics are widely used in advanced engineering applications such as actuators in the automotive industry, sonars for submarine mineral exploration and defence, and a broad range of medical devices, e.g. ultrasound probes. The reliable operational lifetime of these devices is, however, severely limited because they suffer cyclic fatigue leading to both degradation in performance and device failure. The proposed project seeks to develop an understanding of the mechanisms of fatigue and develop a design model for engineers such that piezoelectric ceramic devices can be operated for longer periods with higher levels of reliability.Read moreRead less
Designing starches for increased productivity in mineral flotation. Designing starches for increased productivity in mineral flotation. This project aims to understand the process of starch-mineral surface interactions, and design and develop tailored starch depressant/flocculant biopolymers for mineral beneficiation via the froth flotation process. Natural and modified starches are used as depressants and flocculants in mineral flotation, but scientists lack knowledge of mechanisms describing s ....Designing starches for increased productivity in mineral flotation. Designing starches for increased productivity in mineral flotation. This project aims to understand the process of starch-mineral surface interactions, and design and develop tailored starch depressant/flocculant biopolymers for mineral beneficiation via the froth flotation process. Natural and modified starches are used as depressants and flocculants in mineral flotation, but scientists lack knowledge of mechanisms describing starch-mineral surface interactions, particularly how they process base metal sulphides. This project also intends to develop starch characterisation techniques and novel methods for modifying starch structures and functionalities. Anticipated outcomes are new novel manufacturing applications for starch in Australia.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE140100042
Funder
Australian Research Council
Funding Amount
$190,000.00
Summary
UV to mid-infrared fluorescence spectrometer for use in mineral analysis, radiation dosimetry, and laser materials characterisation. Ultraviolet to mid-infrared fluorescence spectrometer for use in mineral analysis, radiation dosimetry and laser materials characterisation: This project will provide equipment with a vast capability to collect ultraviolet to mid-infrared fluorescence with high temporal measurement accuracy, and highly flexible excitation (spectral and temporal). This will enhance ....UV to mid-infrared fluorescence spectrometer for use in mineral analysis, radiation dosimetry, and laser materials characterisation. Ultraviolet to mid-infrared fluorescence spectrometer for use in mineral analysis, radiation dosimetry and laser materials characterisation: This project will provide equipment with a vast capability to collect ultraviolet to mid-infrared fluorescence with high temporal measurement accuracy, and highly flexible excitation (spectral and temporal). This will enhance active research into new glasses and laser crystals, probing of defect states resulting from ionising radiation absorption in environmental and medical dosimetry materials, investigation of novel fluorescence techniques for mineral identification, through to improving chemical detection capability (for example, detection of explosives). The instrument comprises modules that enable excitation in the ultraviolet, visible, and infrared from a tunable laser system, and high-efficiency collection and processing of fluorescence spectra.Read moreRead less
Two-dimensional plasmonic heterogeneous nanostructures for photocatalysis. This project aims to design and explore two-dimensional heterogeneous photocatalysts that can convert solar energy into usable chemical energy. This project will investigate the correlation between surface plasmonic resonance and photocatalytic activities on the atomic level. Heterogeneous engineering and in-situ investigation of atomic-level photocatalytic dynamics is expected to yield several new full-solar-spectrum pho ....Two-dimensional plasmonic heterogeneous nanostructures for photocatalysis. This project aims to design and explore two-dimensional heterogeneous photocatalysts that can convert solar energy into usable chemical energy. This project will investigate the correlation between surface plasmonic resonance and photocatalytic activities on the atomic level. Heterogeneous engineering and in-situ investigation of atomic-level photocatalytic dynamics is expected to yield several new full-solar-spectrum photocatalysts. The project is expected to contribute to the understanding of the processes and mechanisms underlying photocatalysis, and lead to useable, stable and durable photocatalytics. The outcomes will enable efficient, cost-effective and reliable production of clean energy in a low-emission way.Read moreRead less
Role of oxide grain boundaries in controlling high temperature corrosion of steels by carbon dioxide-rich gases. Advanced coal combustion technologies make carbon dioxide capture possible, but require improved materials to handle hot carbon dioxide-rich gases. These gases are surprisingly corrosive and the corrosion process is not fully understood. This project aims to achieve this understanding and to provide the basis for future alloy design.
Controlling nickel-base alloy high temperature corrosion in CO2-rich gases. Coal provides cheap energy for Australia but emits carbon dioxide (CO2) in large quantities. The solution is to improve the efficiency of coal fired power plants and use CO2 capture technology. This is feasible by raising steam temperatures and using oxyfuel process where coal is burnt in oxygen rather than in air. Thus the hot combustion gas is very rich in CO2 plus water vapour, which is however very corrosive at high ....Controlling nickel-base alloy high temperature corrosion in CO2-rich gases. Coal provides cheap energy for Australia but emits carbon dioxide (CO2) in large quantities. The solution is to improve the efficiency of coal fired power plants and use CO2 capture technology. This is feasible by raising steam temperatures and using oxyfuel process where coal is burnt in oxygen rather than in air. Thus the hot combustion gas is very rich in CO2 plus water vapour, which is however very corrosive at high temperatures. Traditional steels are inadequate. Instead, nickel-base alloys are needed. This project aims to investigate the corrosion behaviour of nickel base alloys in carbon dioxide - water atmospheres, and ways of preventing this corrosion by controlling gas composition and appropriate alloying, which is essential for next generation power plant design.Read moreRead less
Wear-resistant alloys for the mining industry. This project will create new metal matrix composite alloys that are extremely resistant to wear. They will be used in products that are designed and manufactured to meet the highest specifications for robust and reliable use in Australia's mines, which are among the world's most demanding environments.
Heat-resisting iron-nickel base alloys in challenging new applications: oxygen permeabilities and resistance to internal oxidation. There is a pressing need to develop heat resisting alloys which can function adequately in higher operating temperatures and gas mixtures rich in carbon and hydrogen to be handled in advanced technologies for power generation. The expected outcomes of this project will provide the basis for design/selection of these more corrosion-resistant alloys.
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0989180
Funder
Australian Research Council
Funding Amount
$150,000.00
Summary
Facility for studying the sorption properties of gases by nanostructured materials. The climate debate has put the issues that this research will address at the forefront of community concern. All of the initiatives discussed herein are relevant to alternative energy sources and greenhouse gas reduction. The facility will ensure that the research undertaken will be internationally cutting edge and will hasten the adoption of technologies that will flow from the research, thereby reducing the e ....Facility for studying the sorption properties of gases by nanostructured materials. The climate debate has put the issues that this research will address at the forefront of community concern. All of the initiatives discussed herein are relevant to alternative energy sources and greenhouse gas reduction. The facility will ensure that the research undertaken will be internationally cutting edge and will hasten the adoption of technologies that will flow from the research, thereby reducing the effects of the impending energy crisis and related global pollution issues. The current capability for accurately measuring gas sorption in materials for storage and sequestration is limited in W.A. and the proposed facility will address this situation.Read moreRead less