Accepted articles are posted online ahead of regular printed publication. |
| Technical Note |
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4점 탐침 측정법을 이용한 고상전해질계면의 비저항 측정
박준형 · 최용석 · 심형철 · 안재평 · 이재철
Received 2018 Sep 4 Accepted 2018 Sep 19 Published online 2018 Dec 14
Abstract
Lack of understanding on the electrical properties of the solid electrolyte interface (SEI) has been one of the major hurdles for developing fast charging Li-ion batteries. Here, we report our preliminary experimental result on the measurement of the electrical resistivity of SEI using the direct-contact technique based on electron microscopy... More
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| Review Paper |
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전기화학촉매의 제일원리 계산 및 하이스루풋 스크리닝 연구 동향: 리뷰
이창수 · 방기훈 · 홍두선 · 이혁모
Received 2018 Oct 17 Accepted 2018 Nov 27 Published online 2018 Dec 14
Abstract
There are many ongoing efforts to develop sustainable, clean, efficient, and economical pathways to produce renewable energy sources to satisfy worldwide energy demands. Electrochemical conversion processes, such as water splitting, CO2 conversion and N2 electroreduction, have been considered as successful approaches to solve these energy issues. Over the past decade,... More
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| Research Papers |
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단일 크기와 이중 크기의 탄화규소 입자를 이용한 액상소결 탄화규소의 기계적 특성
이준엽· 이상필 · 이진경 · 이문희 · 황승국
Received 2018 Oct 10 Accepted 2018 Nov 12 Published online 2018 Dec 14
Abstract
Both the mechanical properties and probability distribution of liquid phase sintered SiC (LPS-SiC) materials were investigated, based on a detailed analysis of their microstructures. In particular, the effect of the starting sizes of SiC particles on the characterization of LPS-SiC materials was evaluated. LPS-SiC materials were fabricated with a constant... More
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오스테나이트 스테인리스강 튜브의 응력부식균열 민감도에 영향을 미치는 미세조직 및 잔류응력 비교
이호중 · 오승진 · 김홍덕
Received 2018 Sep 3 Accepted 2018 Nov 28 Published online 2018 Dec 14
Abstract
Three 304L austenitic stainless steel feedwater heater (FWH) tubes used in pressurized water reactors (PWRs) were investigated in this study. By comparing metallurgical differences, such as microstructural features, micro-hardness, and circumferential residual stress of the failed and non-failed FWH tubes by stress corrosion cracking (SCC), factors which could affect SCC... More
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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, and Seong Jin Park
Received 2018 Nov 6 Accepted 2018 Nov 13 Published online 2018 Dec 14
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
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Domain Wall Motions in a Near-Morphotropic Pb(Zr,Ti)O3 Under Mechanical Stress
Observed by In Situ Piezoresponse Force Microscopy
Kwanlae Kim
Received 2018 Oct 22 Accepted 2018 Nov 19 Published online 2018 Dec 14
Abstract
Many important material properties of ferroelectric ceramics such as piezoelectric coefficient and hysteresis curve are governed by domain structures and their evolution processes. In the present work, domain wall motions in a near-morphotropic Pb(Zr,Ti)O3 under an external compressive stress were observed using in situ piezoresponse force microscopy (PFM). This specific... More
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n고강도 탄소강 FCA 용착금속의 고온균열 저항성과 저온 충격인성에 미치는 보론과 망간의 영향
박수길 · 조영호 · 지춘호 · 이정훈 · 서성문· 강남현
Received 2018 Oct 5 Accepted 2018 Nov 17 Published online 2018 Dec 14
Abstract
The hot crack resistance and mechanical properties of flux cored arc (FCA) welds were
investigated with three kinds of welding consumables having different boron (B) and manganese (Mn) contents for high strength carbon steel. The hot crack resistance, measured from self-restraint testing, strongly depended on the amount of B in the... More
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유한요소해석을 이용한 AA1100의 다축 단조와 다축대각 단조의 비교
정효태· 김민성· 권상철· 김순태· 이성· 최시훈
Received 2018 Oct 1 Accepted 2018 Nov 2 Published online 2018 Dec 14
Abstract
The effect that forging routes (3 routes, A-C) exert on the development of deformation heterogeneity in AA1100 was theoretically performed using finite element analysis. Route A corresponded to a forging process that involved from 1 to 6 passes through multi-axial diagonal forging (MADF); Route B corresponded to a forging process... More
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Cu-3.5 wt% Ti 합금의 석출 거동에 미치는 시효 전 가공의 영향
조민아· 최은애· 안지혁· 손영국· 김광호· 이재현· 사토시 셈보시· 한승전
Received 2018 Sep 27 Accepted 2018 Oct 19 Published online 2018 Dec 14
Abstract
Cu-Ti alloys were strengthened by Cu4Ti intermetallic compound precipitation in a Cu matrix during aging. The Cu-3.5 wt% Ti(Cu-4.6 at% Ti) alloys without deformation and with uniform and nonuniform deformation were aged at 450 oC for various times after solution treatment at 885 oC. The uniformly and non-uniformly deformed alloys... More
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