A5100446147- Additive Manufacturing Materials and Processes
- High Entropy Alloys Studies
- Luminescence Properties of Advanced Materials
- Advanced materials and composites
- High-Temperature Coating Behaviors
- Advanced machining processes and optimization
- Microstructure and mechanical properties
- Additive Manufacturing and 3D Printing Technologies
- Welding Techniques and Residual Stresses
- Titanium Alloys Microstructure and Properties
- Advanced Surface Polishing Techniques
- Catalytic Processes in Materials Science
- Metal and Thin Film Mechanics
- Gas Sensing Nanomaterials and Sensors
- Inhalation and Respiratory Drug Delivery
- Radiation Detection and Scintillator Technologies
- Injection Molding Process and Properties
- GaN-based semiconductor devices and materials
- Quantum Dots Synthesis And Properties
- Advanced Photocatalysis Techniques
- Nanoplatforms for cancer theranostics
- Magnetic confinement fusion research
- Nanomaterials and Printing Technologies
- Occupational and environmental lung diseases
- Ultrasound and Hyperthermia Applications
The University of Sydney
1997-2025
National University of Singapore
2024
ShanghaiTech University
2024
Nanjing University of Posts and Telecommunications
2023
Jilin Jianzhu University
2022
University of Technology Sydney
2021-2022
North China University of Technology
2022
Wuhan National Laboratory for Optoelectronics
2018-2021
Huazhong University of Science and Technology
2018-2021
Sun Yat-sen University
2020
An FeCoCrNi high-entropy alloy (HEA) was deformed at ambient temperature and cryogenic temperatures down to 4.2 K. Phase transformation from a face-centered cubic (FCC) structure hexagonal close-packed (HCP) occurred during deformation. Lowering the promotes transformation. Atomic-scale structural characterisation suggested that formation of HCP achieved via glide Shockley partial dislocations on every other plane. Due kinetic limitation, occurrence this limited even though theoretical...
In situ TEM experiments reveal the crystalline-to-amorphous phase transformation in an ultrafine-grained Cantor alloy.
Titanium alloys are advanced lightweight materials, indispensable for many critical applications1,2. The mainstay of the titanium industry is α-β alloys, which formulated through alloying additions that stabilize α and β phases3-5. Our work focuses on harnessing two most powerful stabilizing elements strengtheners oxygen iron1-5, readily abundant. However, embrittling effect oxygen6,7, described colloquially as 'the kryptonite to titanium'8, microsegregation iron9 have hindered their...
Abstract Nanothermometers enable the detection of temperature changes at microscopic scale, which is crucial for elucidating biological mechanisms and guiding treatment strategies. However, monitoring micron-scale structures in vivo using luminescent nanothermometers remains challenging, primarily due to severe scattering effect tissue that compromises imaging resolution. Herein, a lanthanide luminescence nanothermometer with working wavelength beyond 1500 nm developed achieve...
Duplex stainless steels (DSSs) possess desirable combinations of mechanical properties and excellent corrosion resistance due to their composition equilibrium microstructure roughly equivalent fractions ferrite austenite. They are used in harsh environments such as marine infrastructures, oil & gas, paper pulp industries. Components with complex geometries often required for these applications. Additive manufacturing (AM) techniques laser powder bed fusion (LPBF) can be harnessed fabricate...
An oxygen-rich face-centred cubic (FCC) Ti phase was engineered in the microstructure of a Ti-6Al-4V alloy via additive manufacturing using laser powder bed fusion. Designated 'C', this FCC has lattice parameter 0.406 nm and exhibits an orientation relationship with parent α′ as follows: (0 0 1)α′//{1 1 1}C, 〈12¯10〉α′ //〈11¯0〉C. We propose that formation C is facilitated by combined effect thermal gradients, deformation induced martensitic transformation, local O enrichment. This enables...
Abstract Preparing atom probe tomography (APT) samples of dual-phase Ti alloys can be challenging. The existing focused ion beam (FIB) lift-out method is time-consuming and requires intensive experience in the process. Here, we combined electropolishing FIB annular milling as a novel approach for APT sample preparation alloys. Electrochemical polishing used to pre-sharpen tip, while fine polishing. This reduces time by 40% compared site-specific technique maintaining similar background noise...
This study aimed to investigate the effect of BaF2 on radiation-shielding ability lead telluride glass. A physical radioactive source was used estimate mass attenuation coefficient (μm) 60TeO2-20PbO-(20-x)ZnO-xBaF2 glass system (where x = 1,2,3,5,6,7,9 mol%). We tested μm values at seven energies (0.059, 0.081, 0.122, 0.356, 0.662, 1.173, 1.332 MeV). To determine accuracy obtained results, we compared experimental data with calculated using XCOM software. The for selected glasses different...
NaLuF 4 :Eu 3+ nanoscintillator with enhanced radioluminescence was boosted by the sensitization effect of Tb on Eu an excellent X-ray scintillation performance, and further applied in imaging high contrast for different samples.
Lanthanide upconversion nanoparticles are often coated with inert shells to reduce surface quenching and thereby enhance luminescence brightness. However, the enhancement factors reported by different studies vary widely depending on nanoparticle size, doping concentrations, excitation irradiance. Reported here results of a comprehensive empirical modeling study emission from highly (100%) doped range sizes shell thicknesses conducted at individual particle level. The effect coating...
Recent investigations have indicated that compositional heterogeneity, which is undulation of alloying elements in single-phase solid solutions, can enhance the strength without sacrificing ductility, similar to cluster strengthening, single-crystal nano-pillars and bulk nanocrystalline metallic materials. However, impact heterogeneity on mechanical properties coarse-grained materials not yet fully understood. In this study, we examine influence tensile a Cu-9Al (at.%) alloy with structure...
SUMMARY Australia implemented conjugate meningococcal C immunization in 2003 with a single scheduled dose at age 12 months and catch-up for individuals aged 2–19 years. Several countries have recently added one or more booster doses to their programmes maintain disease control. Australian surveillance vaccine coverage data were used assess longer term impact on invasive serogroup incidence mortality, review failures. Coverage was 93% 1-year-olds 70% cohorts. In 10 years, after adjusting...
Abstract Additive manufacturing (AM) techniques including laser powder bed fusion have been widely used to produce metallic components with microstructures and mechanical properties distinctly different from the conventionally manufactured counterparts. Understanding how AM parameters affect evolution of microstructure, texture, these is critical for appropriate manipulation their processing therefore properties. Here we conducted a systematic investigation texture face-centred cubic...
Light-emitting diodes (LEDs) are considered as a next-generation lighting due to their high luminous efficiency, low power consumption, and long lifetime. However, the heat dissipation of LEDs is an inevitable roadblock. Here, heat-conducting Cu nanoparticle (NP) paste was prepared demonstrated for high-power LEDs. The effects sintering temperature on electrical thermal properties NP were investigated. junction change resistance measured compared with traditional die-attach materials....