Effects of Phase Purity, Porosity and Oxygen Partial Pressure on the Thermal Stability of Nanolayered Ternary Carbides. The successful completion of this collaborative research will lead to (a) enhanced understanding of the roles of phase purity, porosity and atmosphere on the thermal stability of ternary carbides which is crucial for the design of high-performance ternary carbide heating elements; (b) fostering and strengthening of the continuing research collaboration between Curtin University ....Effects of Phase Purity, Porosity and Oxygen Partial Pressure on the Thermal Stability of Nanolayered Ternary Carbides. The successful completion of this collaborative research will lead to (a) enhanced understanding of the roles of phase purity, porosity and atmosphere on the thermal stability of ternary carbides which is crucial for the design of high-performance ternary carbide heating elements; (b) fostering and strengthening of the continuing research collaboration between Curtin University and the Institute of Metals Research; (c) development of high performance prototype ternary carbide heating elements for use in high temperature furnaces and ovens; and (d) potential joint ventures with local suppliers of furnaces in Australia and China, together with Kanthal of Sweden to assist in the manufacture of ternary carbide heating elements. Read moreRead less
Synthesis of Novel Nanostructured Ternary Carbide Composites. This research will lead to (a) new advances and provide contribution of new knowledge to the Priority Research Areas of Advanced Materials; (b) a novel vacuum heat-treatment process for nanostructured materials design. This will offer the ceramics industry in Australia a new technology for producing wear- and heat-resistant components for advanced engineering applications. (c) design of new layer-graded materials with a unique combina ....Synthesis of Novel Nanostructured Ternary Carbide Composites. This research will lead to (a) new advances and provide contribution of new knowledge to the Priority Research Areas of Advanced Materials; (b) a novel vacuum heat-treatment process for nanostructured materials design. This will offer the ceramics industry in Australia a new technology for producing wear- and heat-resistant components for advanced engineering applications. (c) design of new layer-graded materials with a unique combination of hardness for wear resistance and toughness for damage tolerance. This will enable the ceramics industry in Australia to compete internationally in the business of advanced and high performance ceramic products.Read moreRead less
Damage micromechanisms in alumina hybrid bilayers with graded interfaces. This project proposes a new design concept for high performance alumina hybrids with graded interfaces. The key to this process is the incorporation of thin graded interfaces between an outer homogeneous alumina layer for strength, hardness and wear resistance, and an inner heterogeneous alumina hybrid layer for damage tolerance. The project will explore unresolved issues concerning the effect of graded interfaces on the f ....Damage micromechanisms in alumina hybrid bilayers with graded interfaces. This project proposes a new design concept for high performance alumina hybrids with graded interfaces. The key to this process is the incorporation of thin graded interfaces between an outer homogeneous alumina layer for strength, hardness and wear resistance, and an inner heterogeneous alumina hybrid layer for damage tolerance. The project will explore unresolved issues concerning the effect of graded interfaces on the failure micromechanisms. Advances in this area will provide new strategy or insights for designing novel next generation layered materials.Read moreRead less
Evolution of Contact Damage in Layer Structures. Brittle layer structures (eg brittle coating on ceramic substrate) can be much more damage tolerant than their constituent material components - cracks tend to remain contained within the coating. Very little is known about the factors that control this behaviour. This project will exploit unique local expertise in modelling damage evolution to fill a niche in a large study being carried out at the National Institute of Standards (NIST) in the U ....Evolution of Contact Damage in Layer Structures. Brittle layer structures (eg brittle coating on ceramic substrate) can be much more damage tolerant than their constituent material components - cracks tend to remain contained within the coating. Very little is known about the factors that control this behaviour. This project will exploit unique local expertise in modelling damage evolution to fill a niche in a large study being carried out at the National Institute of Standards (NIST) in the U.S.A. An understanding of the factors that maximise the containment of cracks is essential to the design and development of the next generation of advanced layer composites for many biomechanical and other engineering applications.Read moreRead less
Boundary Effects on Bridging-Stress/Crack-Opening Relationship and Specific Fracture Energy. This project is to investigate the boundary/interface influence on fracture/material properties of composites and thin layered structures along crack path to free boundary and bi-material interface. The local fracture energy dissipation along crack path is emphasised and used to study the boundary influence on the cohesive law - the relationship between crack bridging stress and crack opening displaceme ....Boundary Effects on Bridging-Stress/Crack-Opening Relationship and Specific Fracture Energy. This project is to investigate the boundary/interface influence on fracture/material properties of composites and thin layered structures along crack path to free boundary and bi-material interface. The local fracture energy dissipation along crack path is emphasised and used to study the boundary influence on the cohesive law - the relationship between crack bridging stress and crack opening displacement. New fracture mechanics model is proposed that incorporates the boundary/interface influence and the more popular size effect. The new boundary/interface effect model will be more relevant to modern materials applications related to layered ceramics, thin films, coatings in electronic and bio-medical applications.Read moreRead less
Electrically conductive elastomeric composites by nanomaterials. Electrically conductive elastomeric composites by nanomaterials. This project aims to develop electrically conductive, mechanically robust, cost-effective elastomeric composites, by exploring new processing methods and studying the synergy between graphene sheets and multi-walled carbon nanotubes. Composites will be design, research and manufactured to suit the fabrication of rolling-resistance sensors that detect early-stage malfu ....Electrically conductive elastomeric composites by nanomaterials. Electrically conductive elastomeric composites by nanomaterials. This project aims to develop electrically conductive, mechanically robust, cost-effective elastomeric composites, by exploring new processing methods and studying the synergy between graphene sheets and multi-walled carbon nanotubes. Composites will be design, research and manufactured to suit the fabrication of rolling-resistance sensors that detect early-stage malfunctioning idler rolls. This technology could prevent the breakage of conveyor belts which are essential to the mining, processing and transportation of loose bulk materials; and improve the design and manufacturing of flexible sensors.Read moreRead less
Low-density high-performance proppants for hydraulic fracturing process . Australia has vast resources of unconventional oil/gas, which require hydraulic fracturing to stimulate production. This project aims to develop advanced low-density high-performance proppants from industry waste for hydraulic fracturing. This will be achieved by selecting purer SiO2 raw material, carefully designing the porous structure, and fully understanding its relationship with strength and pack conductivity. Low-den ....Low-density high-performance proppants for hydraulic fracturing process . Australia has vast resources of unconventional oil/gas, which require hydraulic fracturing to stimulate production. This project aims to develop advanced low-density high-performance proppants from industry waste for hydraulic fracturing. This will be achieved by selecting purer SiO2 raw material, carefully designing the porous structure, and fully understanding its relationship with strength and pack conductivity. Low-density means no chemicals in proppant transportation and application. Successful development of such high-performance proppants will significantly increase Australia oil/gas exploration and production with an environmental acceptable technology, a leap forward for the oil/gas industry in Australia and the world.Read moreRead less
Carbon nanotube fluidic channels for desalination - interplay of nanoscale confinement and electrostatics. Tiny tubes of carbon, ten thousand times smaller than human hair, allow water to pass through at extraordinary speed. This project aims to understand and improve their salt rejection properties using comprehensive experimental and theoretical approaches. This will provide the impetus and knowledge for developing advanced membranes for desalination
Development of next generation smart sucker rod wear guides . In a natural gas wells, sucker rod guides protect the production tubing from wear by the rod string. Premature and erratic failures are costing the industry tens of millions every year. In collaboration with two local SMEs, this project aims to develop the next generation of smart and durable wear guides. The project seeks to understand the complex three body wear mechanisms that drive guide and tubing wear, then use this knowledge to ....Development of next generation smart sucker rod wear guides . In a natural gas wells, sucker rod guides protect the production tubing from wear by the rod string. Premature and erratic failures are costing the industry tens of millions every year. In collaboration with two local SMEs, this project aims to develop the next generation of smart and durable wear guides. The project seeks to understand the complex three body wear mechanisms that drive guide and tubing wear, then use this knowledge to develop new wear resistant compounds and develop a smart guide that provides feedback on its wear state. This will enable the industry partners to supply cutting edge technology to the global oil and gas industry that not only reduces well operation cost but also enhances well resilience.Read moreRead less
Transistor-based sensor technology for fast, reliable and accurate in situ monitoring of recycled wastewater. Water recycling is becoming critical for water supplies worldwide, due to declining natural supplies of fresh water, combined with increasing demand. The greatest community and industry concerns over recycled water are quality assurance and relative cost. Ensuring quality requires monitoring of contaminants, yet no single real-time technology exists to measure the myriad of potential con ....Transistor-based sensor technology for fast, reliable and accurate in situ monitoring of recycled wastewater. Water recycling is becoming critical for water supplies worldwide, due to declining natural supplies of fresh water, combined with increasing demand. The greatest community and industry concerns over recycled water are quality assurance and relative cost. Ensuring quality requires monitoring of contaminants, yet no single real-time technology exists to measure the myriad of potential contaminants. This project will develop technology using AlGaN/GaN-based transistors, sensitised to different contaminants, enabling multi-analyte real-time sensor arrays. In situ monitoring systems based on such arrays will be fast, accurate, reliable, low-cost, and applicable to a broad variety of water recycling projects.Read moreRead less