- High-Temperature Coating Behaviors
- Intermetallics and Advanced Alloy Properties
- Advanced ceramic materials synthesis
- Metal and Thin Film Mechanics
- MXene and MAX Phase Materials
- Aluminum Alloys Composites Properties
- Semiconductor materials and devices
- Advanced materials and composites
- Hydrogen embrittlement and corrosion behaviors in metals
- Metallurgical Processes and Thermodynamics
- Nuclear Materials and Properties
- High Temperature Alloys and Creep
- Magnesium Alloys: Properties and Applications
- Aluminum Alloy Microstructure Properties
- Titanium Alloys Microstructure and Properties
- Metal Alloys Wear and Properties
- Corrosion Behavior and Inhibition
- Diamond and Carbon-based Materials Research
- Catalytic Processes in Materials Science
- Microstructure and Mechanical Properties of Steels
- Thermal and Kinetic Analysis
- Boron and Carbon Nanomaterials Research
- Metallurgical and Alloy Processes
- Material Properties and Applications
- GaN-based semiconductor devices and materials
Sungkyunkwan University
2012-2022
Suwon Research Institute
2015
Government of the Republic of Korea
2015
Here we report the design of a ceramic phosphor plate made up different functional materials, such as SiO<sub>2</sub> and MgO, Lu<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>:Ce<sup>3+</sup> (LuAG:Ce) for fabrication remote phosphors in high-power LED applications.
Ti-6Al-4V alloys consisting of α-Ti grains and intergranular β-Ti islands were nitrided at 850°C for 1 to 12 h under a nitrogen pressure Pa. With increasing nitriding time, the Ti-N compound layer became thicker, diffusion zone containing dissolved wider. In layer, initially formed Ti2N TiN as progressed. The nitride layers oxidized rutile-TiO2 after oxidation 700°C 10 in air.
In this work, the high-temperature corrosion behaviour of pure Ni3Al (P–Ni3Al) and alloyed (2.99 wt.%Ti) (Ti–Ni3Al) was investigated in Ar-0.2%SO2 gas at 900–1100 °C for up to 100 h. The kinetics P–Ni3Al Ti–Ni3Al reveal that Ti addition increased total weight gain all temperatures by approximately 10 times than without (P–Ni3Al). alloy initially gained more with increase temperature; but later on, changed. Because extensive scale spallation during cooling, which causes creation large deep...
Hydrogen forced that SIM distributed locally in a α′/γ laminated structure. changed dislocation structure from only cellular to planar dislocations. promoted strain-induced ordering and suppressed the formation of SIM.
In this paper, we introduce a novel approach for systematically solving dataset condensation problem in an efficient manner by exploiting the regularity given dataset. Instead of condensing directly original input space, assume generative process with set learnable codes defined compact latent space followed tiny decoders which maps them differently to space. By combining different and interchangeably, can dramatically increase number synthetic examples essentially same parameter count,...
In this paper, we address the problem of cost-sensitive multi-fidelity Bayesian Optimization (BO) for efficient hyperparameter optimization (HPO). Specifically, assume a scenario where users want to early-stop BO when performance improvement is not satisfactory with respect required computational cost. Motivated by scenario, introduce utility, which function predefined each user and describes trade-off between cost BO. This utility function, combined our novel acquisition stopping criterion,...
Fe-2.25%Cr-1%Mo alloys were corroded at 600, 700 and 800 oC for up to 70 h in 1 atm of N2/H2O/H2S-mixed gases. The base metal sulfidized FeS. This the outer scale formed by outwardly diffusing Fe ions, whereas that inner inwardly sulfur ions. Some FeS further reacted with Cr2S3 FeCr2S4 spinel. alloying elements Cr Mo ions scale. Although can suppress sulfidation a certain extent, fast, owing formation nonstoichiometric