A5009541281- Additive Manufacturing Materials and Processes
- Aluminum Alloy Microstructure Properties
- Aluminum Alloys Composites Properties
- High Entropy Alloys Studies
- Additive Manufacturing and 3D Printing Technologies
- Silicon Carbide Semiconductor Technologies
- Advanced Data Storage Technologies
- Ferroelectric and Piezoelectric Materials
- Advancements in Semiconductor Devices and Circuit Design
- Computational Fluid Dynamics and Aerodynamics
- Semiconductor materials and devices
- Fluid Dynamics and Turbulent Flows
- Magnetic properties of thin films
- Aerodynamics and Acoustics in Jet Flows
- Copper Interconnects and Reliability
- Solar Thermal and Photovoltaic Systems
- Polymer Surface Interaction Studies
- High Temperature Alloys and Creep
- Magnetic Properties of Alloys
- Block Copolymer Self-Assembly
- High-Temperature Coating Behaviors
- Pickering emulsions and particle stabilization
- Microstructure and Mechanical Properties of Steels
- Thermal Radiation and Cooling Technologies
- Sensor Technology and Measurement Systems
National Cheng Kung University
2021-2024
Minghsin University of Science and Technology
2024
National Yang Ming Chiao Tung University
2019-2020
Seagate (United States)
2009-2015
National Kaohsiung First University of Science and Technology
2012
Carnegie Mellon University
2006
In this study, the Al-Ni-Cu-Fe alloy was fabricated using laser powder bed fusion (LPBF), with controlled Fe content, to investigate its metallurgical effects. Furthermore, microstructural differences between coarse-grained (CG), fine-grained (FG) regions, and melt pool boundary were compared. The results showed that FG region exhibited grain-boundary precipitation strengthening grain orientation in randomly distributed, leading oriented columnar grains a small ratio of low-angle...
Heat Assisted Magnetic Recording (HAMR) is widely considered the leading technology to further extend areal density growth of hard disk drives beyond current perpendicular magnetic recording (PMR). The progress and maturity HAMR are evidenced by Seagate's 1.0Tbpsi spin-stand basic demonstration [1] subsequent a fully functional drive with more than 1000 WPOH (write power on hours) [2, 3]. Tremendous has been made design reliability nano-scale near-field optical transducer (NFT) since first...
Al-Ni-Cu alloys are used in energy, automotive, and aerospace industries because of their excellent mechanical properties, corrosion resistance, high-temperature stability. In this study, alloy powder was subjected to selective laser melting (SLM). The SLM manufactured using appropriate printing parameters, its properties were investigated. results revealed that the As-printed material exhibited a typical pool stack structure, with an ultimate tensile strength 725 MPa but high brittleness...
We present a method for data storage in continuous ferroelectric (FE) media, applicable to systems based on one or more scanning probes. Written FE domains are read back destructive fashion by applying constant voltage of magnitude greater than the coercive voltage, as is done random access memory (FeRAM). The resulting flow screening charges through readback amplifier provides sufficient signal allow minimum dimension order 10 nm at MHz rates, orders faster previously demonstrated techniques media.
Al-Mg-Sc-Zr alloy fabricated through selective laser melting (SLM) is an additive manufacturing with promising industrial potential. In this study, as-printed specimens were subjected to either single-stage or two-stage heat treatment processes investigate the effect of temperature from room high on specimens' tensile and fatigue properties establish a reliable reference for aerospace applications. The test results indicated that contributed determine nanoprecipitate Al3(Sc, Zr)...
In this article, the optical properties of multilayer films SiO2/W/SiO2 for solar selective absorber fabricated by sputtering deposition are simulated and fabricated. The with various layer thicknesses studied. And relationships between film thickness reflectance found. An area contour map optimized photo-thermal conversion efficiency (PTCE) more than 92% is One 96/7/87 nm that has maximum PTCE 94%
A new method for characterizing the evolution of oxide charge (Q <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">T</sub> ) generation during program/erase (P/E) cycles is developed. The concentration Q can be separated from floating gate (QFG) by statistically analyzing distribution transconductance reduction (ΔGm,max) after P/E cycles. effect number and position discrete on ΔGm,max studied. cycling dependence given a fractional equation that...
The melt refining process of Martensitic stainless steel smelting is closely related to the characteristics matrix; formation mechanism and distribution carbides, especially, influence mechanical properties steel. In this study, three different processes 440 were used for analysis: aluminum reduction (440M-Al), silicon (440M-Si), electro slag remelting (440C-ESR). results show main carbides after are M7C3 M23C6. 440M-Al 440M-Si fine particles; carbide 440C-ESR a small block. micron-...
This study comprehensively investigates the impact of time interval (t <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">wait</sub> ) between program/erase (P/E) cycles on oxide quality NAND Flash memory devices. It is observed that, at room temperature, P/E with a shorter t yield better than those longer . The charge (Q xmlns:xlink="http://www.w3.org/1999/xlink">T</sub> evolution by distributed can be well described an analytical equation through...
Al-Si alloys exhibit promising wear resistance, thus being mainly employed to weld Al alloy parts and processed into components of equipment. During the new continuous casting direct rolling (CCDR) process, raw material gradually cools solidifies, simultaneously plastically deformed. Hence, materials manufactured through CCDR process presented an unparalleled microstructure. The experimental results indicated that strength can be increased cold rolling. A two-stage heat treatment (solid...
Phase separation under convection, related to the Marangoni instability, is critical in development of advanced polymer processing technologies. The formation mechanisms patterns driven by phase however, still require further investigations. In this work, we study polystyrene (PS)/poly(methyl methacrylate) (PMMA) bilayer films during spin-coating processes. PMMA film-coated glass substrates are dripped PS solutions toluene before spinning. concentration gradients and swollen cause surface...
Although various strategies have been developed to prepare anisotropic polymeric particles, it remains challenging fabricate monolayers of which can extend the applications particles. Here, we develop a novel and facile approach Monolayers polystyrene (PS) microspheres with mean diameter 10 μm are deposited on glass substrates coated poly(methyl methacrylate) films, followed by sequential selective solvent on-film annealing processes. such as snowman-like PS successfully fabricated. Such...
Using modified conventional formulas to fit the measured characteristic curves of transistors appears feasible. Even if no equivalent circuits are considered, fitting works and some important parameters (kN, Vth, λ) successfully determined. Somehow, IDS versus VDS do not perfectly match data as shown. The differences between both squared summed over can be used tell how is. bigger discrepancy is recognized at around VDS= (VGS-Vth) named ``kink'' where saturation approached from triode...
Article Examination of Interactions Between Turbulence and Combustion in Diffusion Flame was published on September 1, 1992 the journal International Journal Turbo & Jet-Engines (volume 9, issue 3).