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Enhancement of thermoelectric power factor by modulation doping of bulk polycrystalline SnS / thin film PEDOT:PSS bilayer
벌크 다결정 SnS / PEDOT:PSS 박막 이중층에서의 변조 도핑을 통한 열전 역률 강화
Dongwook Lee
Korean J. Met. Mater. 2022;60(7):531-536.   Published online 2022 Jun 3
DOI: https://doi.org/10.3365/KJMM.2022.60.7.531

Modulation doping occurs in a heterojunction where a charge carrier-rich material transfers charge to a carrier-deficient material. The modulation-doped material is intentionally selected to have higher charge carrier mobility than the modulation dopant material, so that the overall electrical conductivity can be boosted. Although this modulation doping strategy has proven..... More

Electrochemical Corrosion Resistance and Electrical Conductivity of Three-Dimensionally Interconnected Graphene-Reinforced Cu Composites
Xue Li, Ateeq Ahmed, Byung-Sang Choi
Korean J. Met. Mater. 2021;59(11):821-828.   Published online 2021 Oct 28
DOI: https://doi.org/10.3365/KJMM.2021.59.11.821

A three-dimensionally interconnected graphene-reinforced Cu (3Di Gr-Cu) composite was synthesized using a simple two-step process technique which involves the mechanical compaction of micronsized Cu particles followed by chemical vapor deposition (CVD) at 995 ℃. The microstructural properties of pure Cu and the 3Di Gr-Cu composite were investigated by optical..... More

                           Cited By 2
Effect of Pre-Aging Treatment on the Mechanical Properties of Cold Rolled Cu-6 wt% Ni-1.4 wt% Si Alloy
Cu-6 wt% Ni-1.4 wt% Si 합금의 압연 후 기계적 성질에 미치는 시효전 처리 영향
Sang Jin Lee, Hyeon Seok Shin, Eun-Ae Choi, Jee Hyuk Ahn, Yoonsuk Choi, Sangshik Kim, Jehyun Lee, Seung Zeon Han
이상진, 신현석, 최은애, 안지혁, 최윤석, 김상식, 이재현, 한승전
Korean J. Met. Mater. 2020;58(7):488-494.   Published online 2020 Jul 5
DOI: https://doi.org/10.3365/KJMM.2020.58.7.488

Cu-Ni-Si alloys were strengthened by Ni2Si intermetallic compound precipitation in a Cu matrix during aging. The Cu-6 wt% Ni-1.4wt%Si alloy was prepared by water quenching (solution treatment) or air cooling (homogenization treatment) after heating 980 oC for 2 hours and aging at 500 oC for 6 hours. After maintaining a..... More

                           Cited By 4
Effect of Prior Cold Working before Aging on the Precipitation Behavior in a Cu-3.5 wt% Ti Alloy
Cu-3.5 wt% Ti 합금의 석출 거동에 미치는 시효 전 가공의 영향
Minah Jo, Eun-Ae Choi, Jee Hyuk Ahn, Young Guk Son, Kwangho Kim, Jehyun Lee, Satoshi Semboshi, Seung Zeon Han
조민아, 최은애, 안지혁, 손영국, 김광호, 이재현, 사토시 셈보시, 한승전
Korean J. Met. Mater. 2019;57(1):10-17.   Published online 2018 Dec 14
DOI: https://doi.org/10.3365/KJMM.2019.57.1.10

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 non-uniform deformation were aged at 450 oC for various times after solution treatment at 885 oC. The uniformly and non-uniformly deformed alloys..... More

                           Cited By 8
Correlation Between Electrical Conductivity and Catalytic Property in 78V<sub>2</sub>O<sub>5</sub>-15P<sub>2</sub>O<sub>5</sub>-7B<sub>2</sub>O<sub>3</sub> Glass Containing Fe<sub>2</sub>O<sub>3</sub>
Fe2O3를 포함한 78V2O5-15P2O5-7B2O3계 유리의 결정화에 따른 전기전도도와 촉매특성의 상관관계
Hwa-Jin Jeong, Jong-hwan Kim, Bong-Ki Ryu
정화진, 김종환, 류봉기
Korean J. Met. Mater. 2016;54(12):931-936.   Published online 2016 Dec 5
DOI: https://doi.org/10.3365/KJMM.2016.54.12.931

In this study, we established a correlation between the electrical conductivity and catalytic properties of vanadium borophosphate glass containing Fe2O3. Glasses were synthesized in the 78V2O5–15P2O5–7B2O3 ternary-system containing x mol% Fe2O3 (x = 1, 5, 7.5, and 10). Electrical conductivity was measured at 45 ℃ for samples heat-treated at 340..... More

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