A5101966058- Metal and Thin Film Mechanics
- High Entropy Alloys Studies
- Advanced Surface Polishing Techniques
- Additive Manufacturing Materials and Processes
- Titanium Alloys Microstructure and Properties
- High-Temperature Coating Behaviors
- Additive Manufacturing and 3D Printing Technologies
- Quantum Dots Synthesis And Properties
- Copper Interconnects and Reliability
- Concrete and Cement Materials Research
- Smart Materials for Construction
- Advanced ceramic materials synthesis
- Diamond and Carbon-based Materials Research
- Nonlocal and gradient elasticity in micro/nano structures
- GaN-based semiconductor devices and materials
- Advanced Energy Technologies and Civil Engineering Innovations
- Integrated Circuits and Semiconductor Failure Analysis
- Advanced Materials and Mechanics
- 3D Surveying and Cultural Heritage
The University of Queensland
2018-2023
Titanium (Ti) alloys are often the materials of choice used in light-weighting strategies manufacturing. However, their tribological performance needs to be improved. In this work, a laser surface engineering process using titania/alumina (TiO2/Al2O3) composite powders was developed for Ti–6Al–4V alloy enhance its wear resistance. This resulted formation novel AlxOy/TiOxNy/α-Ti coating. The AlxOy particles were firmly embedded matrix, forming semi-coherent interface with TiOxNy dendrites,...
Abstract The Young’s modulus of individual ZnS nanobelts with thicknesses ranging from 30 to 110 nm is measured by a mechanical resonance method over temperature range 300–650 K. Nanobelts above ∼80 exhibit very close their corresponding bulk value 88 GPa, whilst thinner down ∼70 GPa. Incrementally heating nanobelt thickness K presents linearly decreasing modulus. thus found possess coefficient −125.4 ± 2.8 ppm −1 , which comparable −147 . for below 100 demonstrates strong size effect, and...
Adhesion assessments of an embedded interface in a multilayer system that contains ductile layer are challenging. The occurrence plastic deformation the often leads to additional complexity analysis. In this study, innovative "push-out" technique was devised evaluate interfacial toughness (Gin) SiN/GaAs Au/SiN/GaAs system. Focus ion beam (FIB) milling utilized manufacture miniaturized specimen and scratching with conical indenter used apply load. This approach effectively minimized soft Au...
The present work proposed a novel 3D printing approach for fabricating ternary eutectic ceramics (Al2O3-YAG-ZrO2, or AYZ in short) using laser engineered net shaping (LENS) technique. Highly dense (≥ 98%) thin wall components with refined microstructures were successfully fabricated. as-fabricated ceramic eutectics mainly consist of cellular three phases interpenetrated. In each deposited layer, the solidified microstructure changes from planar to along building direction. evolution...
The notoriously low wear resistance of Ti alloys is impeding their engineering applications. In this work, a novel TiOxNy/α-Ti composite coating was developed by laser cladding TiO2 powders on Ti-6Al-4V substrate in air. TiOxNy reinforcements were synthesized situ via atmospheric nitriding TiOx, chemically bonded with α-Ti matrix that solidified from the partially-melted substrate. has an average hardness 1417 HV0.3 (quadruple Ti-6Al-4V), superior to most coatings reported previously....