Unravelling the structural origin of cyclic fatigue in ferroelectrics. Ferroelectric materials have extensive applications in electromechanical devices and memories and in service are often subjected to repeat mechanical and/or electrical loading, leading to cyclic fatigue and failure. This project aims to apply in-situ electron microscopy techniques and computational modelling to explore cyclic ferroelectric fatigue behaviour and to understand the relationships between local atomic scale struct ....Unravelling the structural origin of cyclic fatigue in ferroelectrics. Ferroelectric materials have extensive applications in electromechanical devices and memories and in service are often subjected to repeat mechanical and/or electrical loading, leading to cyclic fatigue and failure. This project aims to apply in-situ electron microscopy techniques and computational modelling to explore cyclic ferroelectric fatigue behaviour and to understand the relationships between local atomic scale structure and fatigue. The structural origin of ferroelectric fatigue has not been clear because of the limitations of previous measurement capabilities. This project will provide guidance in materials design to increase ferroelectric fatigue lifetime for more reliable ferroelectric-based electronic devices.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE240100060
Funder
Australian Research Council
Funding Amount
$638,853.00
Summary
High speed multi modal in-situ Transmission Electron Microscopy platform. This project aims to establish an in situ transmission electron microscope that will allow the atomic scale imaging of materials, while simultaneously measuring physical, chemical, electrical and optical properties, using a novel combination of cutting edge in-situ sample holders and an instrument mounted laser system. The instrument will be optimised for imaging of dynamic phenomena and the combination of spatial resoluti ....High speed multi modal in-situ Transmission Electron Microscopy platform. This project aims to establish an in situ transmission electron microscope that will allow the atomic scale imaging of materials, while simultaneously measuring physical, chemical, electrical and optical properties, using a novel combination of cutting edge in-situ sample holders and an instrument mounted laser system. The instrument will be optimised for imaging of dynamic phenomena and the combination of spatial resolution in the picometre scale, with microsecond level temporal resolution will be unique. The instrument will accelerate research into hydrogen production and carbon dioxide transformation, and thus support Australia's move to a more sustainable economy. Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE210100036
Funder
Australian Research Council
Funding Amount
$950,000.00
Summary
A customised triple-beam microscope for precise fabricating/characterising . This project aims to establish a customised triple-beam microscope to enable precise fabrication and polishing (using ion beams) and characterisation (using electron beam) of a wide range of advanced materials. It will provide solutions to prepare ultra-high quality and artefact-free specimens for transmission electron microscopy studies, and allow fabrication of unique nanostructures and nanostructured templates for hi ....A customised triple-beam microscope for precise fabricating/characterising . This project aims to establish a customised triple-beam microscope to enable precise fabrication and polishing (using ion beams) and characterisation (using electron beam) of a wide range of advanced materials. It will provide solutions to prepare ultra-high quality and artefact-free specimens for transmission electron microscopy studies, and allow fabrication of unique nanostructures and nanostructured templates for high-performance applications. The customised features of the proposed instrument are the first of its kind in Australia. The new knowledge developed through this project will significantly impact on scientific insights and practical applications of new materials related to physics, chemistry, biology, geology and engineering.Read moreRead less
Biogenesis and functions of bacterial membrane vesicles. This project aims to investigate the mechanisms that regulate the production of bacterial membrane vesicles and how this determines their bacterial cargo and subsequent biological functions. Bacterial membrane vesicles are naturally produced nanoparticles released by all bacteria as part of their normal growth. These vesicles contain a range of bacterial cargo and function to promote bacterial survival and growth. This project will advance ....Biogenesis and functions of bacterial membrane vesicles. This project aims to investigate the mechanisms that regulate the production of bacterial membrane vesicles and how this determines their bacterial cargo and subsequent biological functions. Bacterial membrane vesicles are naturally produced nanoparticles released by all bacteria as part of their normal growth. These vesicles contain a range of bacterial cargo and function to promote bacterial survival and growth. This project will advance our knowledge regarding the regulation of bacterial membrane vesicle biogenesis, their composition and biological functions. Collectively, these findings will facilitate the development and refinement of membrane vesicle-based biotechnologies with broad applications.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE200101105
Funder
Australian Research Council
Funding Amount
$423,856.00
Summary
Probing the nanomechanics of single grain boundary with decorated solutes. Grain boundaries (GBs) are thermodynamically susceptible to attract solutes to reduce system energy. Elaborately manipulating the GB nanostructure and chemistry via segregation can essentially be conducive, rather than detrimental, to materials performance. However, the underlying mechanism of GB segregation and its detailed effect on material properties remain elusive due to the GB complexities in the polycrystals. Throu ....Probing the nanomechanics of single grain boundary with decorated solutes. Grain boundaries (GBs) are thermodynamically susceptible to attract solutes to reduce system energy. Elaborately manipulating the GB nanostructure and chemistry via segregation can essentially be conducive, rather than detrimental, to materials performance. However, the underlying mechanism of GB segregation and its detailed effect on material properties remain elusive due to the GB complexities in the polycrystals. Through correlative in-situ nanomechanical testing and atom probe tomography, this project aims to unravel the rationale of segregation behaviour of individual GBs and its effectiveness to enhance the material performance, and hence enable nanostructural design of advanced metallic materials with unprecedented properties.Read moreRead less
A Novel Multilevel Modelling Framework to Design Diamond Nanothread Bundles. This project aims to develop a novel, computationally-based framework to optimally and efficiently design new fibre materials based on the diamond nanothreads synthesized by the PI in 2014. The CIs (and others) have demonstrated the tremendous promise these materials hold to replace common carbon fibres. The proposed framework will combine advanced computer modelling, statistical learning, genetic algorithm-based optima ....A Novel Multilevel Modelling Framework to Design Diamond Nanothread Bundles. This project aims to develop a novel, computationally-based framework to optimally and efficiently design new fibre materials based on the diamond nanothreads synthesized by the PI in 2014. The CIs (and others) have demonstrated the tremendous promise these materials hold to replace common carbon fibres. The proposed framework will combine advanced computer modelling, statistical learning, genetic algorithm-based optimal design and experimental validations. It will accelerate the design of these new carbon-based fibres as game-changing materials in a wide range of areas. Ultimately this project has the potential to deliver significant economic benefits and will place Australia at the forefront of the industrial revolution of the future.Read moreRead less