A5030542165- Intermetallics and Advanced Alloy Properties
- Aluminum Alloys Composites Properties
- Metal and Thin Film Mechanics
- Aluminum Alloy Microstructure Properties
- Advanced Materials Characterization Techniques
- GaN-based semiconductor devices and materials
- High Temperature Alloys and Creep
- Metallurgical and Alloy Processes
- Acoustic Wave Resonator Technologies
- MXene and MAX Phase Materials
- Copper Interconnects and Reliability
- Advanced materials and composites
- Engineering Applied Research
- Semiconductor materials and devices
- nanoparticles nucleation surface interactions
- Advanced ceramic materials synthesis
- Metallurgy and Material Forming
- Metal Alloys Wear and Properties
- Additive Manufacturing and 3D Printing Technologies
- Semiconductor materials and interfaces
- Microstructure and mechanical properties
- Metallic Glasses and Amorphous Alloys
- Microstructure and Mechanical Properties of Steels
- Material Properties and Applications
- Laser-Ablation Synthesis of Nanoparticles
Hoseo University
2007-2024
A numerical analysis is performed to investigate the aerodynamic characteristics and static height stability of endplate anhedral angle on an aspect-ratio-one wing-in-ground effect. The shows that ground effect increases lift by high pressure lower surface, reduces drag, suction upper considerably enhances lift-drag ratio. endplate, which prevents high-pressure air from escaping out surface influence wing-tip vortex, further augments Irodov's criteria are also numerically evaluated in order...
Aluminum nitride(AlN) is a compound (III-V group) of hexagonal system with crystal structure. Its Wurzite phase very wide band gap semiconductor material. It has not only high thermal conductivity, electrical resistance, insulating constant, breakdown voltage and an excellent mechanical strength but also stable chemical characteristics. This study on the preferred orientation characteristics AlN thin films by reactive evaporation using NH3. We have manufactured film then checked structure...
Morphology and formation processes of lamellar grain boundaries in titanium rich binary TiAl intermetallics were studied. alloys containing aluminum content 44 to 48 at.% induction-heated 1723 K followed by helium-gasquenching at various temperatures. For the Ti-44%Al, few lamellae observed samples quenched from higher than 1473 K. Although small peaks beta phase detected using X-ray diffraction, only ordered hexagonal (α2) with clear APB contrast was TEM observation. Ti-48 at.%Al alloy,...
The P/M processing of titanium aluminide using amorphous TiAl is developed by which it possible to overcome inherent fabricability problems and obtain a fine microstructure. A high quality powder produced reaction ball milling shows clear glass transition far below temperature at the onset crystallization in differential scanning calorimetry above heating rate 0.05 K/s. We obtained fully dense compact powders, encapsulated vacuumed can, via viscous flow hot isostatic pressing (HIP)....
The high temperature deformation behavior of Ni3Al and Ni3(Al,Mo) single crystals that were oriented near <112> was investigated at low strain rates in the range above flow stress peak temperature. Three types found under present experimental conditions. In relatively rate region, dependence is small, may be controlled by dislocation glide mainly on {001} slip plane both crystals. At rates, octahedral still active temperature, but system changes from to cube These results suggest controlling...