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Core-shell Structured YSZ/CeO<sub>2</sub> Composite Thermal Barrier Coating Fabrication and Properties
코어-쉘 구조 YSZ/CeO2 계 복합체 열차폐 코팅 제조 및 물성
Gye-won Lee, Tae-jun Park, Seonung Choi, Jong-il Kim, Gye-seok An, In-hwan Lee, Yoon-seok Oh
이계원, 박태준, 최선웅, 김종일, 안계석, 이인환, 오윤석
Korean J. Met. Mater. 2024;62(7):495-502.   Published online 2024 Jun 28
DOI: https://doi.org/10.3365/KJMM.2024.62.7.495

Abstract
In this study, we researched changes in the properties of a Thermal Barrier Coating depending on the powder structure. For this purpose, we used YSZ (Yttria Stabilized Zirconia), a commercial Thermal Barrier Coating material, to produce a powder with a Core-Shell structure. Bulk samples were prepared by hot pressing to..... More

                   Web of Science 1
Effect of Ultrasonic Cleaning of Titanium Turning Scraps Immersed in Alkaline Solution and Subsequent Preparation of Ferrotitanium Ingots
Suhwan Yoo, Jikwang Chae, Jung-Min Oh, Jae-Won Lim
Korean J. Met. Mater. ;59(2):113-120.   Published online 2021 Jan 27
DOI: https://doi.org/10.3365/KJMM.2021.59.2.113

Abstract
Ti has excellent properties but is more expensive than other materials due to its high melting point, high reactivity and difficult processability. One way to lower the production cost of Ti products is to recycle Ti scraps. Before recycling Ti scraps, pretreatment to remove contamination is essential. Ti scraps can..... More

                   Web of Science 4  Crossref 4
Synthesis of Porous Particles by Electrospray-Assisted Self-Assembly for Water-Repellent or Photocatalytic Surfaces
Young-Sang Cho, Younghyun Lee, Nahee Ku, Sugueun Ji, Young Seok Kim
Korean J. Met. Mater. 2020;58(2):112-124.   Published online 2020 Jan 8
DOI: https://doi.org/10.3365/KJMM.2020.58.2.112

Abstract
In this study, an electrospray technique was used for the synthesis of macroporous ceramic particles, such as silica or titania, by a colloidal templating method. For this purpose, a suspension of polystyrene nanospheres was synthesized by dispersion polymerization for use as sacrificial templates. The feed solution containing a ceramic precursor..... More

                   Web of Science 5  Crossref 4
Flexible OLED Encapsulation with LMPA Line
저융점합금 라인을 이용한 플렉시블 OLED 봉지
Geon Bae, Cheol-Hee Moon
배건, 문철희
Korean J. Met. Mater. 2019;57(4):251-257.   Published online 2019 Apr 5
DOI: https://doi.org/10.3365/KJMM.2019.57.4.251

Abstract
We have developed an encapsulation technology for OLED devices using an LMPA sealing line to enhance barrier characteristics against moisture and oxygen penetration. To verify the potential of this technology for flexible OLED devices, three experimental factors were investigated in this study. First, the stability of the sealing line on..... More

                
Leaching of Silver (Ag) from Electronic Scrap by Thiourea
전자스크랩으로부터 티오요소에 의한 은(Ag) 침출
Hong-Il So, Joo-eun Lee, Yeon-Chul Cho, Jae-Woo Ahn, Ho-Jin Ryu
소홍일, 이주은, 조연철, 안재우, 류호진
Korean J. Met. Mater. 2018;56(7):511-517.   Published online 2018 Jul 5
DOI: https://doi.org/10.3365/KJMM.2018.56.7.511

Abstract
The leaching behavior of silver from electronic scrap using acidic thiourea solution was studied. The results showed that the silver leaching percentage was affected by the concentration of thiourea and hydrochloric acid, the oxidant such as ferric ions, solid-liquid ratio, temperature, rpm, etc. The leaching percentage of silver decreased with..... More

                   Crossref 3
Encapsulation of a Flexible OLED Using a Sealing Line
실링라인을 이용한 플렉시블 OLED 봉지
Cheol-Hee Moon
문철희
Korean J. Met. Mater. 2018;56(4):313-320.   Published online 2018 Apr 5
DOI: https://doi.org/10.3365/KJMM.2018.56.4.313

Abstract
Encapsulation of the flexible OLED devices requires a low temperature process and great barrier characteristics against the permeation of water vapor and oxygen. We suggest a new OLED encapsulation method for the flexible OLED device using a sealing line instead of the TFE encapsulation. For the experiments, polyimide substrate with..... More

    
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