Jongmin Byun
YOU?
Author Swipe
View article: The Use of TiH2 to Refine Y2Ti2O7 in a Nano Mo-ODS Alloy
The Use of TiH2 to Refine Y2Ti2O7 in a Nano Mo-ODS Alloy Open
Mo-ODS alloys have excellent mechanical properties, including an improved recrystallization temperature, greater strength due to dispersed oxides, and the ability to suppress grain growth at high temperatures. In ODS alloys, the dispersed …
View article: Study on hydrogen reduction mechanism of MoO3 using Ti–Mo core–shell powder
Study on hydrogen reduction mechanism of MoO3 using Ti–Mo core–shell powder Open
In this study, the hydrogen reduction mechanism of MoO3 was analyzed in detail using Ti–Mo core–shell powder manufactured through a milling and reduction process. MoO3 and Ti powders were ball-milled to refine the MoO3 powder and coat it o…
View article: TiO2 Thin Film Coating on an Nb-Si–Based Superalloy via Atomic Layer Deposition
TiO2 Thin Film Coating on an Nb-Si–Based Superalloy via Atomic Layer Deposition Open
Nano-oxide dispersion–strengthened (ODS) superalloys have attracted attention because of their outstanding mechanical reinforcement mechanism. Dispersed oxides increase the material’s strength by preventing grain growth and recrystallizati…
View article: Hydrogen Reduction Behavior and Microstructure Characteristics of WO3-NiO-CuO Powder Mixture
Hydrogen Reduction Behavior and Microstructure Characteristics of WO3-NiO-CuO Powder Mixture Open
The characteristics and hydrogen reduction behavior of W-0.8 wt% Ni-0.4 wt% Cu powder synthesized from WO3-NiOCuO composite powder have been investigated. The metal oxide powder mixtures were prepared using a ball milling process. XRD anal…
View article: Preparation of W-Ni-Cu Alloy Powder by Hydrogen Reduction of Metal Oxides
Preparation of W-Ni-Cu Alloy Powder by Hydrogen Reduction of Metal Oxides Open
The effect of powder processing on the microstructure and sinterability of the heavy alloy W-Ni-Cu was investigated. The heavy alloy powders were prepared by the ball milling and hydrogen reduction of metal oxide powders. As the milling ti…
View article: Fabrication of Porous Sintered Body using Shape-Controled 316l Stainless Steel Powder by High-Energy Ball Milling
Fabrication of Porous Sintered Body using Shape-Controled 316l Stainless Steel Powder by High-Energy Ball Milling Open
In this study, 316L stainless steel powder was used to produce a porous body that could be used in a specific environment. In contrast to the existing method of producing filters using only spherical powders, we attempted to produce filter…
View article: Synthesis of Polycrystalline Bi-Doped Snse by Mechanical Alloying and Hydrogen Reduction
Synthesis of Polycrystalline Bi-Doped Snse by Mechanical Alloying and Hydrogen Reduction Open
In this study, Bi-doped SnSe was fabricated through the high energy ball milling and the hydrogen reduction of Bi2O3, and its thermoelectric properties were analyzed. The specimen with pure-Bi was fabricated as a control group and properti…
View article: Research Trends in Electromagnetic Shielding using MXene-based Composite Materials
Research Trends in Electromagnetic Shielding using MXene-based Composite Materials Open
Recent advancements in electronic devices and wireless communication technologies, particularly the rise of 5G, have raised concerns about the escalating electromagnetic pollution and its potential adverse impacts on human health and elect…
View article: Schottky Contacts to ZnO-Nanocoated SnSe Powders by Atomic Layer Deposition
Schottky Contacts to ZnO-Nanocoated SnSe Powders by Atomic Layer Deposition Open
In this study, SnSe powders are nanocoated with ZnO grown by atomic layer deposition (ALD) with different ALD ZnO pulse cycles. Subsequently, the current transport mechanisms of Pt/ZnO-coated SnSe junctions are electrically investigated. A…
View article: Simple synthesis of Black TiO 2 Nanofibers Via Calcination in Inert Atmosphere
Simple synthesis of Black TiO 2 Nanofibers Via Calcination in Inert Atmosphere Open
Black TiO 2nanofibers have recently emerged as a promising material that has both advantages of black metal oxide and one-dimensional nanostructure. However, current reduction-based synthesis approaches are not compatible with practical ap…
View article: Direct Energy Deposition of Mo Powder Prepared by Electrode Induction Melting Gas Atomization
Direct Energy Deposition of Mo Powder Prepared by Electrode Induction Melting Gas Atomization Open
Molybdenum (Mo) is used to form a barrier layer for metal wiring in displays or semiconductor devices. Recently, researches have been continuously attempted to fabricate Mo sputtering targets through additive manufacturing. In this study, …
View article: Homogeneous Dispersion of Yttrium Oxide Particles in Nickel-Based Superalloy by High Pressure Homogenizing and Ball Milling Method
Homogeneous Dispersion of Yttrium Oxide Particles in Nickel-Based Superalloy by High Pressure Homogenizing and Ball Milling Method Open
An optimum route to fabricate the Ni-based superalloy with homogeneous dispersion of Y2O3 particles is investigated. Ni-based ODS powder was prepared by high-energy ball milling of gas-atomized alloy powders and Y2O3 particles treated with…
View article: Effects of Adding Niobium and Vanadium to Fe-Based Oxide Dispersion Strengthened Alloy
Effects of Adding Niobium and Vanadium to Fe-Based Oxide Dispersion Strengthened Alloy Open
In this study, the effects of adding niobium and vanadium to Fe-based oxide dispersion strengthened alloys are confirmed.The composition of alloys are Fe-20Cr-1Al-0.5Ti-0.5Y 2 O 3 and Fe-20Cr-1Al-0.5Ti-0.3V-0.2Nb-0.5Y 2 O 3 .The alloy powd…
View article: Fabrication of Molybdenum Alloy with Distributed High-Entropy Alloy Via Pressureless Sintering
Fabrication of Molybdenum Alloy with Distributed High-Entropy Alloy Via Pressureless Sintering Open
In this study, a molybdenum alloy with dispersed high-entropy particles was fabricated using the powder metallurgy method.The high-entropy powder, composed of Nb, Ta, V, W, and Zr elements with a same atomic fraction, was prepared via high…
View article: Dilatometric Analysis of the Sintering Behavior of Bi2Te3 Thermoelectric Powders
Dilatometric Analysis of the Sintering Behavior of Bi2Te3 Thermoelectric Powders Open
The sintering behavior of p-type bismuth telluride powder is investigated by means of dilatometric analysis. The alloy powders, prepared by ball milling of melt-spun ribbons, exhibit refined and flake shape. Differential thermal analysis r…
View article: Effect of Tin Addition on the Melting Temperatures and Mechanical Properties of Al-Si-Cu Brazing Filler Metals
Effect of Tin Addition on the Melting Temperatures and Mechanical Properties of Al-Si-Cu Brazing Filler Metals Open
For the development of a low-melting point filler metal for brazing aluminum alloy, we analyzed change of melting point and wettability with addition of Sn into Al-20Cu-10Si filler metal. DSC results showed that the addition of 5 wt% Sn in…