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
Advanced shield materials for compact fusion energy. We aim to predict how materials used for shielding sensitive components in nuclear fusion reactors will degrade over time. We will use this knowledge to design advanced alloys for radiation shield, which are critical for the development of more compact fusion reactors design, with lower construction cost, and shorter assembly time. These advanced shield materials may also be used in other applications in radiation fields (e.g. space, nuclear m ....Advanced shield materials for compact fusion energy. We aim to predict how materials used for shielding sensitive components in nuclear fusion reactors will degrade over time. We will use this knowledge to design advanced alloys for radiation shield, which are critical for the development of more compact fusion reactors design, with lower construction cost, and shorter assembly time. These advanced shield materials may also be used in other applications in radiation fields (e.g. space, nuclear medicine). The project also seeks to extend the Australian nuclear research capability by developing an innovative technique to study radiation damage using the OPAL reactor at ANSTO.Read moreRead less
Oxide-semiconductor epitaxy: towards next generation nanoelectronics. This project aims to integrate high quality functional oxide heterostructures with semiconductor platforms and address the fundamental obstacles in oxides for highly efficient and high-speed transistor applications by engineering their electronic band structures. The project aims to establish a bridge between the diverse electronic properties of oxides and the established semiconductor platform, and generate new devices and fu ....Oxide-semiconductor epitaxy: towards next generation nanoelectronics. This project aims to integrate high quality functional oxide heterostructures with semiconductor platforms and address the fundamental obstacles in oxides for highly efficient and high-speed transistor applications by engineering their electronic band structures. The project aims to establish a bridge between the diverse electronic properties of oxides and the established semiconductor platform, and generate new devices and functionalities. Expected outcomes include epitaxial functional oxides on Gallium arsenide with ultrahigh, room-temperature sheet electron mobility and a comprehensive understanding of its microscopic origin. This will fundamentally change the route toward novel transistors based on high speed and low energy oxide electronics.Read moreRead less
Beyond the Ferroelectric Field Effect Transistors. The von Neumann paradigm is the foundation of modern computing systems, which are based on the data exchange between central processing unit (CPU) and memory. The physical separation between the CPU and memory will cause von Neumann bottleneck – a memory wall to limit the data processing speed for contextually intelligent applications. This project aims to develop a novel ferroelectric field effect transistor that integrates a ferroelectric mat ....Beyond the Ferroelectric Field Effect Transistors. The von Neumann paradigm is the foundation of modern computing systems, which are based on the data exchange between central processing unit (CPU) and memory. The physical separation between the CPU and memory will cause von Neumann bottleneck – a memory wall to limit the data processing speed for contextually intelligent applications. This project aims to develop a novel ferroelectric field effect transistor that integrates a ferroelectric material into a semiconductor transistor structure to merge logic and memory functionalities in a single-device level. This will solve the memory wall problem while provide low power, high speed, high density and long data retention time for future logic-in-memory and data centric computing paradigms.Read moreRead less
Exploration of lead free ferroelectric crystals for transducer applications. This project aims to investigate lead free crystals, which are expected to possess high piezoelectric properties for medical imaging and underwater acoustics, as an alternative to toxic lead-based ferroelectrics which have been dominantly used in ultrasound transducers. The project will have significant impact on development of new lead-free ferroelectric crystals with desirable properties. This will benefit Australian ....Exploration of lead free ferroelectric crystals for transducer applications. This project aims to investigate lead free crystals, which are expected to possess high piezoelectric properties for medical imaging and underwater acoustics, as an alternative to toxic lead-based ferroelectrics which have been dominantly used in ultrasound transducers. The project will have significant impact on development of new lead-free ferroelectric crystals with desirable properties. This will benefit Australian industry by providing knowledge and technology of crystal growth, enabling advanced ultrasound transducers for medical imaging and underwater acoustic applications.Read moreRead less
AM of MAX Phase parts for applications in extreme environments. This project aims to develop techniques to synthesize MAX Phase compound materials in-situ using laser additive manufacturing. The project expects to increase jet engine fuel efficiency and thrust, and to fabricate longer-lasting parts for supersonic speed applications. The expected outcomes include well-developed additive manufacturing processes to make high performance engineering components with shape complexity for extreme envir ....AM of MAX Phase parts for applications in extreme environments. This project aims to develop techniques to synthesize MAX Phase compound materials in-situ using laser additive manufacturing. The project expects to increase jet engine fuel efficiency and thrust, and to fabricate longer-lasting parts for supersonic speed applications. The expected outcomes include well-developed additive manufacturing processes to make high performance engineering components with shape complexity for extreme environment applications, and new methods to increase the 3D printability of brittle materials. This should provide significant benefits to aerospace and defense industries through solving their long standing bottleneck material and processing problems. The outcomes also enhance Australia’s manufacturing capacity.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE240101106
Funder
Australian Research Council
Funding Amount
$413,847.00
Summary
Experimental and numerical studies on internal erosion of granular soils. This research aims to improve our understanding of the mechanisms involved in internal erosion in soil that can trigger instabilities and damage in large scale infrastructures. Specifically, influences of morphology features, at both grain and structure scales, and applied stress on the initiation and evolution of internal erosion will be clarified, to predict where and when the catastrophic failure happens. The proposed p ....Experimental and numerical studies on internal erosion of granular soils. This research aims to improve our understanding of the mechanisms involved in internal erosion in soil that can trigger instabilities and damage in large scale infrastructures. Specifically, influences of morphology features, at both grain and structure scales, and applied stress on the initiation and evolution of internal erosion will be clarified, to predict where and when the catastrophic failure happens. The proposed proposal will not only surely benefit a broad range of science and engineering communities, but also directly address the second most urgent problems, 'soil and water', in Australia, by rephrasing the Australia standards or guidelines for construction, surveillance, and decommissioning of civil engineering structures.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE240100130
Funder
Australian Research Council
Funding Amount
$1,300,000.00
Summary
Thermophysical Property Analysers for Materials under Extreme Environments. The development of new materials with properties specifically tailored to withstand the extreme environments begins with understanding the physical nature of the processes involved, including the properties of atoms and molecules extending from the nanoscale to the collective behaviour at the macroscale. This relies on the knowledge achieved with new capabilities of analytical tools to open new avenues for developing the ....Thermophysical Property Analysers for Materials under Extreme Environments. The development of new materials with properties specifically tailored to withstand the extreme environments begins with understanding the physical nature of the processes involved, including the properties of atoms and molecules extending from the nanoscale to the collective behaviour at the macroscale. This relies on the knowledge achieved with new capabilities of analytical tools to open new avenues for developing the materials. This project aims to strengthen Australian research activities in the development of advanced materials for energy, defence and space, and advanced manufacturing technologies through establishing a high temperature, high pressure and high force materials characterisation suite for extreme environments at UNSW.Read moreRead less
New Ceramic: Fully Stabilised Monoclinic ZrO2 by Al2O3 + SiO2 Additions. Aim: To use conventional manufacturing and advanced manufacturing to produce an unprecedented form of zirconia: Fully stabilised monoclinic zirconia. Significance: The product utilises waste and inexpensive raw materials and it avoids the universal nanoscale transformation from the tetragonal and cubic forms of zirconia, which are commercialised. Outcomes: The product can have widespread uses in the chemical, refractory and ....New Ceramic: Fully Stabilised Monoclinic ZrO2 by Al2O3 + SiO2 Additions. Aim: To use conventional manufacturing and advanced manufacturing to produce an unprecedented form of zirconia: Fully stabilised monoclinic zirconia. Significance: The product utilises waste and inexpensive raw materials and it avoids the universal nanoscale transformation from the tetragonal and cubic forms of zirconia, which are commercialised. Outcomes: The product can have widespread uses in the chemical, refractory and mining industries and the technology aims to expand the industrial partner's commodity base from structural ceramics to high-tech ceramics. Benefits: Greater utilisation of waste and Australian raw materials, new commercialisation opportunities, new training and employment opportunities and breakthrough research.Read moreRead less
Design of Nanoporous BCN with Tunable Pores for CO2 Capture and Conversion. This project aims to design and develop advanced boron carbon nitride-based materials with high specific surface areas, tunable pores and functional groups, guided by theoretical calculations for the capture of CO2 at ambient conditions. By introducing single metal atoms in the above nanostructures, we also aim to design a novel catalytic system for the effective conversion of CO2 into fine chemicals. This project will o ....Design of Nanoporous BCN with Tunable Pores for CO2 Capture and Conversion. This project aims to design and develop advanced boron carbon nitride-based materials with high specific surface areas, tunable pores and functional groups, guided by theoretical calculations for the capture of CO2 at ambient conditions. By introducing single metal atoms in the above nanostructures, we also aim to design a novel catalytic system for the effective conversion of CO2 into fine chemicals. This project will offer new knowledge on the design of low-cost advanced materials with specific functionalities for the simultaneous capture and conversion of CO2. This project will make a significant impact on Australian industries and further offer job opportunities and economic benefits by offering new technologies for a clean environment.Read moreRead less