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Korean J. Met. Mater.
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금속 용탕 탈성분법 공정에서 Mg 용탕에 첨가된 Al 합금원소가 Mg-Ti 복합재료의 미세조직에 미치는 영향
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장지은, 주수현, 박성혁
Korean J. Met. Mater.
2024;62(10):820-826. Published online 2024 Oct 5
DOI:
https://doi.org/10.3365/KJMM.2024.62.10.820
Abstract
This study investigates the effect of adding Al to Mg molten metal on the microstructural characteristics and hardness of Mg-Ti composites fabricated via a liquid metal dealloying (LMD) process. The addition of Al to the Mg melt significantly reduces the dealloying rate of Cu in a Ti
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precursor during LMD......
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고압비틀림 공정을 이용한 3차원 연속연결 Fe
80
Cr
20
-Mg 초미세립 헤테로구조 제작과 샘플 두께 영향 연구
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하수빈, 구강희, 김형섭, 주수현
Korean J. Met. Mater.
2024;62(9):673-684. Published online 2024 Sep 5
DOI:
https://doi.org/10.3365/KJMM.2024.62.9.673
Abstract
This study investigates the refinement of 3D interconnected Fe
80
Cr
20
-Mg heterostructure composite material fabricated via Liquid Metal Dealloying (LMD) followed by High-Pressure Torsion (HPT) process. The LMD process was executed using two distinct thicknesses of the (Fe
80
Cr
20
)
70
Ni
30
precursor alloy, specifically 0.8 mm and 1.5 mm, which were immersed in an 800.....
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방전플라즈마소결법을 이용한 구리-흑연 재료의 소결거동 및 열적 특성 평가
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양민혁, 박범순, 문형석, 박재철, 박현국
Korean J. Met. Mater.
2024;62(6):411-418. Published online 2024 May 31
DOI:
https://doi.org/10.3365/KJMM.2024.62.6.411
Abstract
The use of heat dissipation materials in various field such as power semiconductor device, LED and microelectronic system. Therefore, there is a need for heat dissipation materials using copper (Cu) and graphite (Gr). These materials have high thermal conductivity. In particular, graphite has high thermal stability with a low coefficient.....
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방전 플라즈마 소결법으로 제조된, AlN-MgO 소결체의 미세구조와 열적, 기계적 특성
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모한첸, 정명진, 안정원, 신승용, 박윤휘, 김선래, 남수용, 이우재, 권세훈
Korean J. Met. Mater.
2024;62(5):367-376. Published online 2024 May 5
DOI:
https://doi.org/10.3365/KJMM.2024.62.5.367
Abstract
AlN-MgO composites with different compositions were prepared by spark plasma sintering, and the effects of their composition on their microstructure, thermal properties, and mechanical properties were systemically investigated. MgO compositions in the AlN-MgO composites were controlled from 20 to 80 wt%. The results indicated that a phase transition did not.....
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Twin wire arc spray 공정을 통해 제작된 Al-Al
2
O
3
복합소재 미끄럼 방지 코팅의 우수한 마모 저항성
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권한솔, 박영진, 강용진, 김도현, 남욱희, 변응선
Korean J. Met. Mater.
2024;62(4):257-266. Published online 2024 Mar 29
DOI:
https://doi.org/10.3365/KJMM.2024.62.4.257
Abstract
In this study, novel non-skid Al-Al
2
O
3
coatings with improved wear resistance were fabricated using twin wire arc spray (TWAS). TWAS Al coating was prepared as a reference sample and representative TWAS parameters (working distance, process gas pressure, arc current) were controlled to fabricate different Al-Al
2
O
3
coatings. The Al-Al
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O
3
coatings showed.....
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압력 센서용 탄소 나노 튜브 폴리머 복합체의 필러 함량과 종횡비에 따른 압저항 특성
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유종찬, 김동영, 이동관, 남건우, 박성훈
Korean J. Met. Mater.
2023;61(10):793-799. Published online 2023 Sep 25
DOI:
https://doi.org/10.3365/KJMM.2023.61.10.793
Abstract
Polymer composites enriched with conductive fillers hold immense potential for flexible pressure sensors, because of the remarkable piezoresistive effect they possess. Research on polymer composite pressure sensors has been actively ongoing because of their flexibility and high electrical resistance performance. This paper presents a comprehensive comparison of the piezoresistive characteristics.....
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초미립 TiB
2
-ZrO
2
복합재료 합성 및 고속 소결
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손인진
Korean J. Met. Mater.
2023;61(5):324-329. Published online 2023 Apr 20
DOI:
https://doi.org/10.3365/KJMM.2023.61.5.324
Abstract
TiB
2
is considered candidate materials for ultra-high temperature ceramics and cutting tools because of its a high thermal conductivity, a low coefficient of thermal expansion, a high hardness and high melting temperature. Despite these attractive properties, TiB2 applications are limited because it has a low fracture toughness below the brittle-ductile.....
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Korean J. Met. Mater.
2023;61(2):120-125. Published online 2023 Jan 27
DOI:
https://doi.org/10.3365/KJMM.2023.61.2.120
Abstract
In the present study, we analyzed the thermal and mechanical properties of Cu-graphite composites (CGCs) with spatially anisotropic graphite layers. These composites were fabricated using a combination of electroless plating and spark plasma sintering (SPS) processes. Thermal conductivities and thermal expansion coefficients of the composites were measured using differential thermal.....
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Web of Science 2
Crossref 2
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Korean J. Met. Mater.
2023;61(1):54-59. Published online 2022 Dec 28
DOI:
https://doi.org/10.3365/KJMM.2023.61.1.54
Abstract
Despite the recent advances in nature-inspired superhydrophobic surfaces with multifunctional properties such as self-healing, self-cleaning, antibacterial material, anti-biofouling, and oil-water separation in various industrial applications, there have been very few reports of robust superhydrophobic surfaces fabricated via a low-cost method. Herein, we report a rationally designed, self-healable, robust, and superhydrophobic.....
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Web of Science 1
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분말 사출 성형된 Fe-Cr-B/316L 스테인레스강 복합재료의 미세조직과 기계적 특성에 미치는 Fe-Cr-B의 영향
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김영균, 주연아, 윤태식, 이기안
Korean J. Met. Mater.
2023;61(1):9-17. Published online 2022 Dec 28
DOI:
https://doi.org/10.3365/KJMM.2023.61.1.9
Abstract
Stainless steel-based composites (SMCs) mixed with 316L stainless steel powder and Fe-Cr-B based M alloys powder ed M) powder were manufactured using the powder injection molding (PIM) process, and their microstructure and mechanical properties were investigated. To examine the effect of M content on the properties of SMCs, the M.....
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Web of Science 1
Crossref 1
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금속 박막 두께가 크랙 기반 신축성 하이브리드 압저항 전극의 스트레인 감지 특성에 미치는 영향
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노지연, 김미래, 김종만
Korean J. Met. Mater.
2022;60(12):933-939. Published online 2022 Nov 25
DOI:
https://doi.org/10.3365/KJMM.2022.60.12.933
Abstract
In recent decades, many research efforts have been devoted to developing high-performance stretchable strain sensors due to their potential for application in various emerging wearable sensor systems. This work presents a facile yet highly efficient way of modulating the sensing performance of a thin metal film/conductive composite hybrid piezoresistor-based stretchable.....
More
Web of Science 1
Crossref 1
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Forsterite 리튬 이온 배터리 음극 제조 및 전기화학적 반응 탐침
D
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김동주, 박병남
Korean J. Met. Mater.
2022;60(11):851-857. Published online 2022 Oct 31
DOI:
https://doi.org/10.3365/KJMM.2022.60.11.851
Abstract
In an effort to minimize irreversible capacity loss and volume expansion, research on Si nanocomposite materials with a SiO
x
/Mg
2
SiO
4
/SiO
x
structure through a magnesiothermic reduction process (MTR) has attracted much attention from researchers. Mg
2
SiO
4
(forsterite) has been shown to improve the initial coulombic efficiency (ICE) by minimizing the irreversible capacity loss due.....
More
Web of Science 2
Crossref 1
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단일벽 탄소나노튜브와 다중벽 탄소나노튜브 사용에 따른 고분자 복합체의 기계적, 전기적 물성
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강병호, 허오녕, 홍순국, 박성훈
Korean J. Met. Mater.
2022;60(9):694-700. Published online 2022 Aug 30
DOI:
https://doi.org/10.3365/KJMM.2022.60.9.694
Abstract
To manufacture composites with required properties, it is extremely important to select an appropriate filler. Carbon-based nano materials such as carbon black, graphene and carbon nanotube (CNT) have been extensively investigated as reinforcing and conducting fillers. Because of their high aspect ratio coupled with superior physical properties, 1-dimensional CNTs are.....
More
Web of Science 7
Crossref 7
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수소 저장 적용을 위한 기능화된 카본 나노 튜브 복합체의 강화 특징
D
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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
Web of Science 2
Crossref 3
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-
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L
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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
N
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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
Web of Science 2
Crossref 2
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나노구조의 ZrB
2
-Al
2
O
3
복합재료 합성과 소결
I
n
-
J
i
n
S
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o
n
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
ZrB
2
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, ZrB
2
applications are limited by its low fracture toughness below the brittle-ductile transition temperature. To improve its ductile properties, the approach.....
More
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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, MnO
2
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 MnO
2
/carbon structures contained some selective nanoparticles coated with carbon. The structural.....
More
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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
o
C. During.....
More
Web of Science 1
Crossref 2
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나노구조의 ZrB
2
-SiC 복합재료 합성과 소결
I
n
-
J
i
n
S
h
o
n
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
ZrB
2
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 ZrB
2
are limited by its low fracture toughness below the brittle-ductile transition temperature. To improve its ductile properties, the.....
More
Web of Science 2
Crossref 3
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급속소결에 의한 WC-Graphene-Al 복합재료 제조 및 기계적 성질
I
n
-
J
i
n
S
h
o
n
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
Web of Science 1
Crossref 1
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방전플라즈마 소결법에 의해 제조된 Cu-Ni-Zr-Ti 비정질 기지 복합재료의 미세조직 및 기계적 특성
D
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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, Cu
54
Ni
6
Zr
22
Ti
18
bulk metallic glass composites were developed by spark plasma sintering(SPS) using gas atomized Cu
54
Ni
6
Zr
22
Ti
18
metallic glass powders and Ta powders. Metallic glass composites with Ta phase were fabricated by SPS. The successful consolidation of Cu
54
Ni
6
Zr
22
Ti
18
metallic glass matrix composites with the Ta phase was achieved.....
More
Web of Science 1
Crossref 2
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나노구조 Ta-ZrO
2
복합재료 합성과 급속소결
S
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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
ZrO
2
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 ZrO
2
at room temperature limits its wider application in the industry. One of the most obvious ways to solve the.....
More
Web of Science 4
Crossref 5
M
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WC-BN-Al복합재료 급속소결 및 기계적 성질
S
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-
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S
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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
Web of Science 6
Crossref 7
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고주파 유도 가열에 의한 나노구조의 Nb-Al
2
O
3
복합재료 제조와 기계적 성질
S
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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
Al
2
O
3
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. Al
2
O
3
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
Web of Science 2
Crossref 1
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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,.....
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Web of Science 4
Crossref 6
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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.....
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Web of Science 6
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AlN 기계적 성질에 미치는 BN 첨가 영향
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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.....
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Web of Science 10
Crossref 9
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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.....
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Crossref 11
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나노구조 (W,Ti)C-Graphene 복합재료 급속소결
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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.....
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Crossref 7
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