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Characteristics of Functionalized Carbon Nanotube Composites to Reinforce Hydrogen Storage Applications
수소 저장 적용을 위한 기능화된 카본 나노 튜브 복합체의 강화 특징
Dong-Young Kim, Sung-Hoon Park
김동영, 박성훈
Korean J. Met. Mater. 2022;60(3):237-243.   Published online 2022 Feb 8
DOI: https://doi.org/10.3365/KJMM.2022.60.3.237

Abstract
Recent studies have extensively studied the use of composites of carbon nanotubes (CNTs) dispersed in epoxy resin to mechanically reinforce hydrogen storage and lightweight vehicle applications. The mechanical properties of the composite are strengthened due to load transfer from the epoxy matrix to the CNTs when an external force is..... More

                        
Thermal Properties of Copper Matrix-Ceramic Filler Composite Prepared by Polymer Solution Method
Bok-Hyun Oh, Chung-Il Ma, Ji-Yeon Kwak, Heon Kong, Sang-Jin Lee
Korean J. Met. Mater. 2022;60(1):68-75.   Published online 2021 Dec 10
DOI: https://doi.org/10.3365/KJMM.2022.60.1.68

Abstract
A copper (Cu) metal-ceramic filler composite with high thermal conductivity and a suitable thermal expansion coefficient was designed for application as a high-performance heat dissipation material. The purpose of the designed material was to utilize the high thermal conductivity of Cu while lowering its high coefficient of thermal expansion by..... More

                        
Nano Silicon Composite with Gelatin/Melamine Derived N-doped Carbon as an Efficient Anode Material for Li-ion Batteries
Venugopal Nulu
Korean J. Met. Mater. 2021;59(11):802-812.   Published online 2021 Oct 28
DOI: https://doi.org/10.3365/KJMM.2021.59.11.802

Abstract
Silicon (Si) has a high theoretical capacity and low working potential vs. Li/Li+, and has been investigated as the most capable negative electrode material for lithium-ion batteries (LIBs). However, Si undergoes significant volume changes during the Li+ alloying/ dealloying processes, leading to unstable cycle life and limiting its practical applicability..... More

                        
Synthesis and Sintering of Nanostructured ZrB<sub>2</sub>-Al<sub>2</sub>O<sub>3</sub> Composite
나노구조의 ZrB2-Al2O3 복합재료 합성과 소결
In-Jin Shon
손인진
Korean J. Met. Mater. 2021;59(10):692-697.   Published online 2021 Sep 6
DOI: https://doi.org/10.3365/KJMM.2021.59.10.692

Abstract
ZrB2 is considered a candidate material for ultra-high temperature ceramics because of its high thermal conductivity, high melting point, and low coefficient of thermal expansion. Despite these attractive properties, ZrB2 applications are limited by its low fracture toughness below the brittle-ductile transition temperature. To improve its ductile properties, the approach..... More

                        
Porous MnO<sub>2</sub>/ carbon Hybrid Material with Improved Electrochemical Performance
Venugopal Nulu
Korean J. Met. Mater. 2021;59(9):670-676.   Published online 2021 Aug 4
DOI: https://doi.org/10.3365/KJMM.2021.59.9.670

Abstract
In this work, MnO2 nanoparticles were embedded in a carbon matrix as a porous composite, fabricated using a simple chemical route followed by low-temperature annealing, with activated carbon (AC) as the carbon source in the composite preparation. The porous MnO2/carbon structures contained some selective nanoparticles coated with carbon. The structural..... More

                        
Synthesis of Three-Dimensionally Interconnected Hexagonal Boron Nitride Networked Cu-Ni Composite
Zahid Hussain, Hye-Won Yang, Byung-Sang Choi
Korean J. Met. Mater. 2021;59(7):505-513.   Published online 2021 Jun 16
DOI: https://doi.org/10.3365/KJMM.2021.59.7.505

Abstract
A three-dimensionally interconnected hexagonal boron nitride (3Di-hBN) networked Cu-Ni (3DihBN-Cu-Ni) composite was successfully synthesized in situ using a simple two-step process which involved the compaction of mixed Cu-Ni powders (70 wt.% Cu and 30 wt.% Ni) into a disc followed by metal-organic chemical vapor deposition (MOCVD) at 1000 oC. During..... More

                           Cited By 1
Synthesis and Sintering of Nanostructured ZrB<sub>2</sub>-SiC Composite
나노구조의 ZrB2-SiC 복합재료 합성과 소결
In-Jin Shon
손인진
Korean J. Met. Mater. 2021;59(7):439-444.   Published online 2021 Jun 11
DOI: https://doi.org/10.3365/KJMM.2021.59.7.439

Abstract
ZrB2 is considered a candidate material for ultra-high temperature ceramics because of its high thermal conductivity, high melting point, and low coefficient of thermal expansion. Despite these attractive properties, applications of ZrB2 are limited by its low fracture toughness below the brittle-ductile transition temperature. To improve its ductile properties, the..... More

                           Cited By 1
Fabrication of WC-Graphene-Al Composites by Rapid Sintering and Their Mechanical Properties
급속소결에 의한 WC-Graphene-Al 복합재료 제조 및 기계적 성질
In-Jin Shon
손인진
Korean J. Met. Mater. 2021;59(6):384-391.   Published online 2021 May 26
DOI: https://doi.org/10.3365/KJMM.2021.59.6.384

Abstract
Tungsten carbides are very attractive because of their superior properties, e.g., high thermal and electrical conductivities, high melting point, high hardness, and relatively high chemical stability. Tungsten carbides with a binder metal, for example Ni or Co, are mainly used to fabricate nozzles, molds and cutting tools in the composite..... More

                           Cited By 1
Microstructure and Mechanical Properties of Cu-Ni-Zr-Ti Bulk Metallic Glass Composites by Spark Plasma Sintering
방전플라즈마 소결법에 의해 제조된 Cu-Ni-Zr-Ti 비정질 기지 복합재료의 미세조직 및 기계적 특성
Da Woon Shin, Hong Min, Jin Kyu Lee
신다운, 민 홍, 이진규
Korean J. Met. Mater. 2021;59(5):281-288.   Published online 2021 Apr 6
DOI: https://doi.org/10.3365/KJMM.2021.59.5.281

Abstract
In the present study, Cu54Ni6Zr22Ti18 bulk metallic glass composites were developed by spark plasma sintering(SPS) using gas atomized Cu54Ni6Zr22Ti18 metallic glass powders and Ta powders. Metallic glass composites with Ta phase were fabricated by SPS. The successful consolidation of Cu54Ni6Zr22Ti18 metallic glass matrix composites with the Ta phase was achieved..... More

                        
Rapid Sintering and Synthesis of Nanocrystalline Ta-ZrO<sub>2</sub> Composite
나노구조 Ta-ZrO2 복합재료 합성과 급속소결
Seong-Eun Kim, In-Jin Shon
김성은, 손인진
Korean J. Met. Mater. 2020;58(11):776-781.   Published online 2020 Oct 15
DOI: https://doi.org/10.3365/KJMM.2020.58.11.776

Abstract
ZrO2 is a promising candidate for knee and hip joint replacements due to its excellent combination of low density, corrosion resistance and biocompatibility. Nevertheless, a low fracture toughness of pure ZrO2 at room temperature limits its wider application in the industry. One of the most obvious ways to solve the..... More

                           Cited By 4
Mechanical Properties and Rapid Sintering of WC-BN-Al Composites
WC-BN-Al복합재료 급속소결 및 기계적 성질
Seong-Eun Kim, Su-Hwan Hong, In-Jin Shon
김성은, 홍수환, 손인진
Korean J. Met. Mater. 2020;58(7):453-458.   Published online 2020 Jul 5
DOI: https://doi.org/10.3365/KJMM.2020.58.7.453

Abstract
Tungsten carbides are quite attractive for their superior properties, e.g., high melting point, high hardness, high thermal and electrical conductivities, and relatively high chemical stability. Tungsten carbides with a binder metal, for example Co or Ni, are mainly used to produce cutting tools, nozzles and molds in the composite form...... More

                           Cited By 6
Mechanical Properties and Fabrication of a Nanostructured Nb-Al<sub>2</sub>O<sub>3</sub> Composite by High Frequency Induction Heating
고주파 유도 가열에 의한 나노구조의 Nb-Al2O3 복합재료 제조와 기계적 성질
Seong-Eun Kim, Se-Hoon Oh, In-Jin Shon
김성은, 오세훈, 손인진
Korean J. Met. Mater. 2019;57(11):701-707.   Published online 2019 Nov 5
DOI: https://doi.org/10.3365/KJMM.2019.57.11.701

Abstract
Al2O3 has a high Young’s modulus (380 GPa), a low density (3.98 g· cm-3), good high-temperature mechanical properties, biocompatibility and excellent oxidation resistance. Al2O3 has been used for automotive, aerospace, bio-materials and various industrial applications. Despite its various merits, the low fracture toughness of the material below the brittle-ductile transition..... More

                           Cited By 1
High-Temperature Oxidation of Fe-12Cr-0.3C-4Mn-(13-15)Cu Composite Alloys
Min Jung Kim, Sang-Hwan Bak, Junhee Hahn, Seon Jin Kim, Dong Bok Lee
Korean J. Met. Mater. 2019;57(9):575-581.   Published online 2019 Aug 21
DOI: https://doi.org/10.3365/KJMM.2019.57.9.575

Abstract
Alloys of Fe-12Cr-0.3C-4Mn-(13, 14, 15)Cu (wt%) were cast using an induction furnace. They were structurally heterogeneous composites that consisted of a relatively stiff α-Fe matrix and a soft (Cu, Mn)-rich secondary phase. They were developed as self-lubricating, wear-resistant metals. Since the formation of oxides plays an important role in wear,..... More

                           Cited By 2
Thermal Conductivity of Three-Dimensionally Interconnected Graphene-Networked Cu Composite Fabricated by a Simple Two-Step Process
Xue Li, Terry Arthur Ring, Byung-Sang Choi
Korean J. Met. Mater. 2019;57(8):529-534.   Published online 2019 Jul 11
DOI: https://doi.org/10.3365/KJMM.2019.57.8.529

Abstract
A Cu composite reinforced by a three-dimensionally interconnected graphene network was synthesized in situ by a simple two-step process utilizing compacted Cu powder (99% purity) as a template for the growth of graphene. Cu composites with different graphene contents were obtained by controlling the processing parameters. The composites were approximated..... More

                           Cited By 4
Effect of BN Addition on the Mechanical Properties of AlN
AlN 기계적 성질에 미치는 BN 첨가 영향
Woo-Jin Cho, Se-Hoon Oh, In-Jin Shon
조우진, 오세훈, 손인진
Korean J. Met. Mater. 2019;57(5):310-315.   Published online 2019 Apr 10
DOI: https://doi.org/10.3365/KJMM.2019.57.5.310

Abstract
Aluminum nitride (AlN) has several attractive properties including high thermal conductivity, excellent electrical insulation, a thermal expansion coefficient close to that of Si and low density. Accordingly, it is considered a promising packing material and substrate for high power integrated circuits. However, its low fracture toughness at room temperature limits..... More

                           Cited By 8
Synthesis and Characterization of ZnO/TiO<sub>2</sub> Photocatalyst Decorated with PbS QDs for the Degradation of Aniline Blue Solution
Jong-Ho Lee, Hong-Joo Ahn, Jeong-Il Youn, Young-Jig Kim, Su-Jeong Suh, Han-Jun Oh
Korean J. Met. Mater. 2018;56(12):900-909.   Published online 2018 Dec 5
DOI: https://doi.org/10.3365/KJMM.2018.56.12.900

Abstract
A ZnO/TiO2 photocatalyst decorated with PbS quantum dots (QDs) was synthesized to achieve high photocatalytic efficiency for the decomposition of dye in aqueous media. A TiO2 porous layer, as a precursor photocatalyst, was fabricated using micro-arc oxidation, and exhibited irregular porous cells with anatase and rutile crystalline structures. Then, a..... More

                           Cited By 9
Rapid Sintering of Nanocrystalline (W,Ti)C-Graphene Composites
나노구조 (W,Ti)C-Graphene 복합재료 급속소결
Seong-Eun Kim, In-Jin Shon
김성은, 손인진
Korean J. Met. Mater. 2018;56(12):854-860.   Published online 2018 Dec 5
DOI: https://doi.org/10.3365/KJMM.2018.56.12.854

Abstract
In spite of the many attractive properties of (W,Ti)C, its low fracture toughness limits its wide application. To improve the fracture toughness generally a second phase is added to fabricate a nanostructured composite. In this regard, graphene was considered as the reinforcing agent of (W,Ti)C. (W,Ti)C-graphene composites that were sintered..... More

                           Cited By 7
Liquid-Phase Reaction Sintering Behavior at below 200 C and Electrical Sheet Resistance of Sn-58Bi/Cu Composite Pastes
Sn-58Bi/Cu 복합 페이스트의 200 °C 미만 액상 반응 소결 거동과 전기저항 변화
Jun Ho Hwang, Dongshin Jeong, Jong-Hyun Lee
황준호, 정동신, 이종현
Korean J. Met. Mater. 2018;56(6):440-448.   Published online 2018 Jun 4
DOI: https://doi.org/10.3365/KJMM.2018.56.6.440

Abstract
To fabricate a film with the highest electrical conductivity through liquid-phase reaction sintering below 200 °C using composite pastes containing both Sn-58Bi and Cu particles as a filler material, the effects of process parameters, such as the mixing ratio of the fillers, reaction temperature, and reaction time, were evaluated and..... More

                           Cited By 1
Evaluations of Hydrogen Permeation on Ni-SCYb Nano-Composites Membrane by Sol-Gel Methods
Min Gyeom Kim, Tae Whan Hong
Korean J. Met. Mater. 2018;56(5):406-411.   Published online 2018 May 8
DOI: https://doi.org/10.3365/KJMM.2018.56.5.406

Abstract
Industrially meaningful hydrogen production process from mixture or syngas certainly must have a cooling process, which is typically pressure swing adsorption (PSA). However, the PSA process involves an exothermic reaction during adsorption. Recently, hydrogen separation research has been in progress in order to develop a cooling process to minimize or..... More

         Cited By 1
Electrical and Optical Investigation of the Growth Behavior of Au Nanoparticles Fabricated on Various Matrix Materials by the Alternating Sputtering Method
교번스퍼터링법에 의해 다양한 기지상 재료위에 형성된 Au 나노입자의 성장거동에 대한 전기, 광학적 분석
Bum-Joon Kim, Hyun Chul Kim, Jong-Geon Park, Kyeong-Seok Lee
김범준, 김현철, 박종건, 이경석
Korean J. Met. Mater. 2017;55(10):739-744.   Published online 2017 Sep 28
DOI: https://doi.org/10.3365/KJMM.2017.55.10.739

Abstract
Nanocomposite films, which are comprised of metal nanoparticles dispersed in a matrix layer, have attracted great interest due to their unique electrical and optical properties, which are mainly due to the excitation of localized surface plasmons. In this study, we employed an alternating sputtering method to fabricate such nanocomposite films...... More

      
Sintering of a Nanostructured CoZr-ZrO<sub>2</sub> Composite from Mechanochemically Synthesized Powders
기계화학적 합성과 나노구조 CoZr-ZrO2 복합재료 소결
In-Jin Shon, Jin-Kook Yoon, Kyung-Tae Hong
손인진, 윤진국, 홍경태
Korean J. Met. Mater. 2017;55(9):632-636.   Published online 2017 Aug 30
DOI: https://doi.org/10.3365/KJMM.2017.55.9.632

Abstract
Since their development in the 1970s ZrO2 ceramics have been shown to be promising alternative materials for total hip arthroplasty (THA) and total knee arthroplasty (TKA). However, ZrO2 is so brittle that in vivo failure can result from fracture of the ceramic femoral head and fracture of the ceramic acetabular..... More

      
Effect of Preparation Methods on the Electrochemical Performance of All-solid-state Li-S Batteries
탄소-황 복합 전극 제조 방법에 따른 리튬-황 전고체 전지 성능 변화
Han Ul Choi, Ju Sung Jin, Hyung-Tae Lim
최한울, 진주성, 임형태
Korean J. Met. Mater. 2017;55(7):503-508.   Published online 2017 Jul 4
DOI: https://doi.org/10.3365/KJMM.2017.55.7.503

Abstract
All-solid-state Li-S batteries were fabricated with lithium silicide anodes (Li4.4Si), sulfide-based glass electrolyte (Li2S-P2S5), and a sulfur composite cathode. The sulfur based composite cathode was prepared using two methods; (Case 1) mortar-mixing and (Case 2) planetary ball milling at a rotation speed of 370 rev/min for 15 min. SEM analysis..... More

         Cited By 2
Fabrication and Characterization of Ge<sub>2</sub>Sb<sub>2</sub>Te<sub>5</sub> Nanowire Arrays and PEDOT: PSS Hybrid Thermoelectric Composites
Ge2Sb2Te5 nanowire arrays와 PEDOT: PSS를 이용한 유・무기 열전 복합소재 합성 및 특성평가
Sang-Hyun Roh, Jiwon Kim, Woon-Ik Park, Yang-Do Kim, Jae-Hong Lim
노상현, 김지원, 박운익, 김양도, 임재홍
Korean J. Met. Mater. 2017;55(6):432-439.   Published online 2017 Jun 1
DOI: https://doi.org/10.3365/KJMM.2017.55.6.432

Abstract
Hybrid organic/inorganic composites have recently been investigated in the thermoelectric field in an effort to interdependently manipulate the charge carriers, which are interconnected with electrical and thermal transport. The decoupling of a charge carrier’s roles in the hybrid structures can result in enhanced thermoelectric performance, by only exploiting the high..... More

         Cited By 2
Effect of Graphene Addition on Mechanical Properties of TiN
그래핀 첨가가 TiN 기계적 성질에 미치는 영향
In-Jin Shon, Jin-Kook Yoon, Kyung-Tae Hong
손인진, 윤진국, 홍경태
Korean J. Met. Mater. 2017;55(3):179-183.   Published online 2017 Mar 3
DOI: https://doi.org/10.3365/KJMM.2017.55.3.179

Abstract
Despite of many attractive properties of TiN, the current concern about the TiN focuses on its low fracture toughness below the ductile-brittle transition temperature. To improve its mechanical properties, the approach generally utilized has been the addition of a second phase to form composites and to make nanostructured materials. In..... More

      
Temperature Dependency of the Tensile Characteristics and Transition of Fracture Behaviors in a Novel Infiltrated TiC-SKD11 Composites
TiC-SKD11 함침 복합재의 온도에 따른 인장 특성과 파괴거동 변화
Nu-Ri Oh, Sang-Kwan Lee, Seung-Chan Cho, Il-Guk Jo, Keum-Cheol Hwang, Dae-Ha Kim, Young-Tae Cho, Dong-Woo Suh, Hyun-Uk Hong
오누리, 이상관, 조승찬, 조일국, 황금철, 김대하, 조영태, 서동우, 홍현욱
Korean J. Met. Mater. 2017;55(3):156-164.   Published online 2017 Mar 3
DOI: https://doi.org/10.3365/KJMM.2017.55.3.156

Abstract
A composite having 60 vol% of TiC particles was successfully fabricated by the infiltration of molten SKD11 tool steel into a TiC preform. The density of this composite was achieved to be 25% lighter than conventional steels. The penetration of the liquid metal reached geometrically complex regions without any interfacial..... More

      
Effect of Graphene Addition on the Mechanical Properties of TiO<sub>2</sub>
TiO2 기계적 성질에 미치는 그래핀 첨가 영향
In-Jin Shon
손인진
Korean J. Met. Mater. 2017;55(2):110-114.   Published online 2017 Feb 2
DOI: https://doi.org/10.3365/KJMM.2017.55.2.110

Abstract
Despite of the many attractive properties of TiO2, its low fracture toughness limits many industrial applications. To improve its fracture toughness, the approach commonly utilized has been the addition of a second phase, to form composites, and to make nanostructured composites. In this regard, highly dense nanostructured TiO2 and TiO2-graphene..... More

         Cited By 3
Effect of Added Gas-Atomized Al-Si/SiC<sub>p</sub> Composite Powder on the Sinterability and Mechanical Properties of Alumix 431 fabricated by Hot-Pressing Process
Eunsun Lee, Jeong-Jung Oak, Yongjin Kim, Yongho Park
Korean J. Met. Mater. 2017;55(2):98-109.   Published online 2017 Feb 2
DOI: https://doi.org/10.3365/KJMM.2017.55.2.98

Abstract
The aim of this study is to establish an optimized hot-press sintering condition for aluminum matrix composites (AMCs) by analyzing their sintered microstructure and mechanical properties. The fabricated AMCs in this study consisted of a blend of commercial Ecka Alumix 431 powder, and Al-Si/SiCp powder manufactured by gas atomizer (Al-Si/SiCp)...... More

         Cited By 1
in situ Fabrication of Fe-TiB<sub>2</sub> Nanocomposite Powder by Planetary Ball Milling and Subsequent Heat-treatment of FeB and TiH<sub>2</sub> Powder Mixture
FeB와 TiH2 혼합분말의 유성볼밀 및 후속열처리에 의한 Fe-TiB2 나노복합분말 in situ 제조
Xuan-Khoa Huynh, Sun-Woo Bae, Ji Soon Kim
Xuan-Khoa Huynh, 배선우, 김지순
Korean J. Met. Mater. 2017;55(1):10-15.   Published online 2017 Jan 5
DOI: https://doi.org/10.3365/KJMM.2017.55.1.10

Abstract
Fe-TiB2 powder was synthesized in-situ by the planetary ball milling and subsequent heat-treatment of an iron boride (FeB) and titanium hydride (TiH2) powder mixture. Mechanical activation of the (FeB+TiH2) powder mixtures was observed after a milling time of 3 hours at 700 rpm of rotation speed, but activation was not..... More

         Cited By 4
Rapid Sintering of Nanocrystalline SiC-Graphene Composites
나노구조 SiC-Graphene 복합재료 급속소결
In-Jin Shon
손인진
Korean J. Met. Mater. 2016;54(12):893-898.   Published online 2016 Dec 5
DOI: https://doi.org/10.3365/KJMM.2016.54.12.893

Abstract
The low mechanical properties of SiC limit its wide application despite many attractive properties. To improve the mechanical properties, a second phase has been generally added to make a nanostructured composite. In this respect, graphene was evaluated as the reinforcing agent of SiC. SiC-graphene composites were sintered within 2 min..... More

         Cited By 3
Synthesis and Rapid Sintering of Nanocrystalline CoTi-ZrO<sub>2</sub> Composite
나노구조 CoTi-ZrO2 복합재료 합성과 급속소결
In-Jin Shon
손인진
Korean J. Met. Mater. 2016;54(11):826-830.   Published online 2016 Nov 5
DOI: https://doi.org/10.3365/KJMM.2016.54.11.826

Abstract
CoTi and ZrO2 nanopowders were mechanochemically synthesized from CoTiO3 and Zr powders according to the reaction (2CoTiO3 + 3Zr → 2CoTi + 3ZrO2). The milled powders were then consolidated by pulsed current-activated sintering within two minutes under an applied pressure of 80MPa. The average hardness and fracture toughness of the..... More

         Cited By 3
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