| Home | E-Submission/Review | Sitemap | Editorial Office |  
top_img
Korean Journal of Metals and Materials Search > Browse Articles > Search



Effect of Process Parameters on the Angular Distribution of Sputtered Cu Flux in Long-Throw Sputtering System
Hee-Young Shin, Tae-Ho Kim, Jun-Woo Park, Hyun-Chul Sohn
Korean J. Met. Mater. 2019;57(7):462-467.   Published online 2019 Jun 5
DOI: https://doi.org/10.3365/KJMM.2019.57.7.462

Abstract
In this work, the angular distribution of the sputtered Cu flux in a long throw sputtering (LTS) system is extracted from the comparison of experimentally-measured profiles of deposited films with simulated profiles of films in overhang contact structure. And effects of the sputtering process parameters such as Ar pressure during..... More

                        
Effect of Carbides Formed in 9Cr-1Mo-V-Nb Weld Metals on Elevated Temperature Tensile Strength
9Cr-1Mo-V-Nb 용착금속에서 생성된 탄화물이 고온 인장강도에 미치는 영향
Byungrok Moon, Junghoon Lee, Namhyun Kang, Taeho Lee, Woosang Jung, Chulgyu Park, Kyungmox Cho
문병록, 이정훈, 강남현, 이태호, 정우상, 박철규, 조경목
Korean J. Met. Mater. 2019;57(7):422-429.   Published online 2019 Jun 5
DOI: https://doi.org/10.3365/KJMM.2019.57.7.422

Abstract
Alloy design of 9Cr-1Mo-V-Nb weld metals was carried out through thermodynamic simulation, and elevated temperature tensile testing was performed on the designed alloy. Based on the thermodynamic simulation of the 9Cr-1Mo-V-Nb weld metal, 0.09 to 0.10 wt% C was added to increase Cr-rich M23C6. Nitrogen was reduced from 0.04 to..... More

                        
Pressure Transmission in the Compaction Process of Nickel Powder Using the Finite Element Methods
Jong Won Baek, Seong Jin Park
Korean J. Met. Mater. 2019;57(2):115-123.   Published online 2019 Jan 9
DOI: https://doi.org/10.3365/KJMM.2019.57.2.115

Abstract
The compression process is one of the more widely used industrial manufacturing methods for fabricating desired shape of specimens with various materials such as metals and ceramics. In the compaction process, the upper punch moves into the powder, and force is transmitted between particles, then achieving densification. In this process,..... More

                        
Analysis of a Slab and Slab Heater Cover in a Compact Endless Cast and Rolling Mill Process Using Finite Element Methods
Jong Won Baek, Joo Won Oh, Jae-Sook Chung, Yong-Seok Cho, Seong Jin Park
백종원, 오주원, 정제숙, 조용석, 박성진
Korean J. Met. Mater. 2019;57(1):43-50.   Published online 2018 Dec 14
DOI: https://doi.org/10.3365/KJMM.2019.57.1.43

Abstract
Compact Endless cast and rolling Mill (CEM) processes were developed and used to fabricate steel products such as steel slabs. However, the coiling furnace in this process was very expensive, so a new layout was suggested. As the coiling furnace was removed, the interval among the slab heaters had to..... More

                        
Modification of the Amount of CH<sub>4</sub> Supplied for the Efficient CH<sub>4</sub> Reduction of SnO<sub>2</sub>
Taeyang Han, Youhan Sohn, Hyunwoo Ha, Mi Yoo, Sangyeol Kim, Sang-ro Lee, Hyun You Kim, Jun Hyun Han
Korean J. Met. Mater. 2018;56(5):384-391.   Published online 2018 May 8
DOI: https://doi.org/10.3365/KJMM.2018.56.5.384

Abstract
The methane reduction (MR) of SnO2 has been proposed as a highly efficient method for recovering Sn from SnO2 containing industrial wastes. The MR of SnO2 also produces a mixture of H2 and CO, which can be further utilized as a syngas for the production of various fuels through the..... More

      
How to Utilize Computational Materials Science in the Metals and Materials Community An Overview
금속·재료 분야 전산재료과학 사용설명서
Byeong-Joo Lee
이병주
Korean J. Met. Mater. 2018;56(4):253-264.   Published online 2018 Apr 5
DOI: https://doi.org/10.3365/KJMM.2018.56.4.253

Abstract
Computational approaches such as first-principles calculations, atomistic simulations, phase field simulations, computational thermodynamics and finite element method simulations are widely used in the metals and materials community. Even with their successful applications for better understanding of material phenomena, and the design of new materials or processes, a gap remains between..... More

      
Heat Dissipation Analysis of High-Power, Multi-Chip LED Bulbs
고 출력, 멀티 칩 LED 벌브에서 방열 거동 해석
Cheol-Hee Moon
문철희
Korean J. Met. Mater. 2018;56(3):227-234.   Published online 2018 Mar 6
DOI: https://doi.org/10.3365/KJMM.2018.56.3.227

Abstract
To ensure the reliability of high-power light-emitting diode (LED) bulbs, temperature management is very important, including reduction of the junction temperature on the LED chip and enhancing outward thermal dissipation. Simulation can be an effective tool for predicting the temperature distribution over all bulbs, which enables a quantitative analysis. In..... More

      
Charging Behavior of Sinter Feed according to Types of Charging Chute
장입 슈트 형태에 따른 소결 원료 장입 거동
Kang-Min Kim, Ki-Woo Lee, Jae-Hong Kwon, Hae-Kwon Jeong, Jeong-Whan Han
김강민, 이기우, 권재홍, 정해권, 한정환
Korean J. Met. Mater. 2017;55(12):896-904.   Published online 2017 Dec 4
DOI: https://doi.org/10.3365/KJMM.2017.55.12.896

Abstract
In the iron ore sintering process, a thermal imbalance can occur in the sinter feed bed which degrades the quality of the sintered ores. In order to solve this thermal imbalance, it is necessary to control the sizes of the sintering feed charging through the chute by designing an appropriate..... More

      
Material Characterization of Single Crystalline Cu Subjected to High Strain Rates and High Temperatures for Multiscale Simulation
Yujin Seong, Youngkyu Kim, Im Doo Jung, Sungho Kim, See Jo Kim, Seong-Gon Kim, Hak Jun Kim, Seong Jin Park
Korean J. Met. Mater. 2017;55(11):760-767.   Published online 2017 Oct 31
DOI: https://doi.org/10.3365/KJMM.2017.55.11.760

Abstract
The material characterization of single crystalline Cu columns was numerically carried out at the submicroscopic level. A molecular dynamics (MD) simulation was employed using the embedded-atom method (EAM) interatomic potential between a pair of Cu atoms to describe the interactions among Cu atoms. First, the relationship between mechanical properties and..... More

         Cited By 1
Effect of Overflow Geometry and Injection Speed on the Casting Product during the Magnesium Alloy Die-casting Process for Thin-walled Electronic Housing Components
마그네슘 합금 박육 부품 다이캐스팅 주조시 오버플로우 형상 및 주입속도가 주조 품질에 미치는 영향
Eui-Hyuk Kwon, Jaehong Kwon, Beyong-Chul Kim, Jeong-Whan Han
권의혁, 권재홍, 김병철, 한정환
Korean J. Met. Mater. 2017;55(7):515-522.   Published online 2017 Jul 4
DOI: https://doi.org/10.3365/KJMM.2017.55.7.515

Abstract
Casting defects such as gas traps and oxide particles must be removed in the die-casting process in order to obtain good cast products. Experimental research is costly and time-consuming, so computer simulations are typically performed in advance and then compared to experimental results. In this paper, a magnesium alloy die-casting..... More

      
Calculation of Inductance, Capacitance, and Microwave Absorbance of Modified Square Loop Frequency Selective Surface
변형된 사각 루프 주파수 선택 표면의 인덕턴스, 커패시턴스 계산 및 전파흡수특성
Tian Liu, Sung-Soo Kim
류전, 김성수
Korean J. Met. Mater. 2017;55(6):412-418.   Published online 2017 Jun 1
DOI: https://doi.org/10.3365/KJMM.2017.55.6.412

Abstract
The square loop (SL) is the typical pattern of a frequency selective surface (FSS) with high inductance (L) and capacitance (C). In this study, modified patterns including split square loop FSS (SSL-FSS) and I-type FSS (I-FSS) are proposed, and their L and C values were estimated using the equivalent circuit..... More

      
Simulation and Experimental Study on the Steady Conduction Solution for Continuous Rheo-Casting for A356 Alloy
Do Minh Duc, Nguyen Hong Hai, Pham Quang
Korean J. Met. Mater. 2017;55(3):202-208.   Published online 2017 Mar 3
DOI: https://doi.org/10.3365/KJMM.2017.55.3.202

Abstract
Computational fluid dynamic modeling of a continuous rheo-casting technology was conducted, consistent with the manufacturing of 3 mm-thin plates made of aluminum alloy A356. The A numerical simulation on of the stabilizing time of the material crystallization was carried out using the ANSYS FLUENT code. Solidification and melting models were..... More

      
Study of Novel EUV AbsorberNickel & Nickel Oxide
새로운 EUV 흡수체 연구:니켈 & 니켈 산화물
Dong Gon Woo, Jung Hwan Kim, Jung Sik Kim, Seongchul Hong, Jinho Ahn
우동곤, 김정환, 김정식, 홍성철, 안진호
Korean J. Met. Mater. 2017;55(3):198-201.   Published online 2017 Mar 3
DOI: https://doi.org/10.3365/KJMM.2017.55.3.198
Abstract
The shadowing effect is one of the most urgent issues yet to be solved in high-volume manufacturing using extreme ultraviolet lithography (EUVL). Many studies have been conducted to mitigate the unexpected results caused by shadowing effects. The simplest way to mitigate the shadowing effect is to reduce the thickness of... More
         Cited By 1
Effect of Side Lobe Intensity and Photon Shot Noise Effect on the Missing Hole Phenomenon in Extreme Ultraviolet Lithography
극자외선 노광공정에서의 사이드 로브 세기와 포톤 샷 노이즈 효과가 컨택 홀 missing 현상에 미치는 영향
Jung Sik Kim, Seongchul Hong, Yong Ju Jang, Jinho Ahn
김정식, 홍성철, 장용주, 안진호
Korean J. Met. Mater. 2017;55(2):139-143.   Published online 2017 Feb 2
DOI: https://doi.org/10.3365/KJMM.2017.55.2.139

Abstract
The missing hole phenomenon in a wafer pattern is a critical issue in extreme ultraviolet lithography. It occurs randomly, even when the process conditions are consistent. The main reason for this phenomenon is thought to be the photon shot noise effect, which is a random reaction between photons and photoresist..... More

      
Numerical and Experimental Analysis on the Cavity Formation and Shrinkage for Investment Cast Alloy 738 4 mm-Thick Rectangular Tube
Alloy 738 초내열합금 4 mm 두께 각관의 정밀주조 시 수축공 및 수축변위 해석 및 분석
Myeong-Il Park, Kyeong-Min Kim, Yeong-Chul Lee, Jung-Seok Lee, Jae-Hyun Lee, Jae-Hyun Yoo, Sang-Hu Park, Yoon Suk Choi
박명일, 김경민, 이영철, 이정석, 이재현, 유재현, 박상후, 최윤석
Korean J. Met. Mater. 2017;55(2):132-138.   Published online 2017 Feb 2
DOI: https://doi.org/10.3365/KJMM.2017.55.2.132

Abstract
Investment casting for the thin (4 mm thick) rectangular tube (40 mm wide, 80 mm high and 200 mm long) was carried out numerically and experimentally for Alloy 738, which is a precipitation-hardened Ni-base superalloy. Two types of rectangular tubes, one with a regular array (10 mm by 10 mm..... More

      
Technical Developments and Trends of Earthquake Resisting High-Strength Reinforcing Steel Bars
내진용 고강도 철근의 제조와 기술 개발 동향
Byoungchul Hwang, Jae-Hyeok Shim, Myoung-Gyu Lee, Joonho Lee, Jun-Ho Jung, Bo-Sung Kim, Sung-Bin Won
황병철, 심재혁, 이명규, 이준호, 정준호, 김보성, 원성빈
Korean J. Met. Mater. 2016;54(12):862-874.   Published online 2016 Dec 5
DOI: https://doi.org/10.3365/KJMM.2016.54.12.862

Abstract
Since reconstruction of old town in Korea requires high-rise and seismic design construction, many attentions have been paid to high strength seismic reinforced steel bar. In the present paper, technical developments and trends are summarized for developing next-generation seismic reinforced steel bar of grade 700 MPa. Steelmaking process requires high..... More

         Cited By 2
Experimental and Simulation Analysis of Hot Isostatic Pressing of Gas Atomized Stainless Steel 316L Powder Compacts
Dongguo Lin, Sangyul Ha, Youngho Shin, Dong Yong Park, Seong Jin Park, Sung Taek Chung, Ravi Bollina, Seongkyu See
Korean J. Met. Mater. 2016;54(10):732-742.   Published online 2016 Oct 5
DOI: https://doi.org/10.3365/KJMM.2016.54.10.732

Abstract
In this work, both experimental and numerical studies were conducted to investigate the densification behavior of stainless steel 316L (STS 316L) powders during hot isostatic pressing (HIP), and to characterize the mechanical properties of HIPed specimens. The HIP experiments were conducted with gas atomized STS 316L powders with spherical particle..... More

         Cited By 3

Jiyoung Jeong, Dongjun Song, Jihye Choe, Choong-Heui Chung, and Ki-Ha Hong*

Received 2019 Apr 30     Accepted 2019 Jun 10     Published online 2019 Jul 4
Abstract
We investigated the effects of materials and the film thickness of hole transport layers (HTLs) on inverted type perovskite solar cells using optics-charge transport coupled simulations. Power conversion efficiencies (PCEs), and the variations in efficiency induced by the film thickness dispersion, were intensively studied, to compare potential HTLs candidates like... More
      
1 |
E-Submission
Email Alert
Author's Index
Specialties
Impact factor
The Korean Institute of Metals and Materials
SCImago Journal & Country Rank
Scopus
GoogleScholar
Similarity Check
Crossref Cited-by Linking
KOFST
COPE
Editorial Office
The Korean Institute of Metals and Materials
6th Fl., Seocho-daero 56-gil 38, Seocho-gu, Seoul 06633, Korea
TEL: +82-70-4266-1646   FAX: +82-2-557-1080   E-mail: metal@kim.or.kr
About |  Browse Articles |  Current Issue |  For Authors and Reviewers
Copyright © The Korean Institute of Metals and Materials. All rights reserved.                 Developed in M2Community