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Optimization of Oil Adsorption Capacity by Aerogel Powder Synthesized Using Emulsion Droplets as Micro-reactors in Ambient Conditions from Sodium Silicate as Precursor

Young-Sang Cho, Sohyeon Sung, Seung Hee Woo, Young Seok Kim
조영상, 성소현, 우승희, 김영석

Korean J. Met. Mater. 2021;59(2):99-112. Published online 2021 Feb 5
DOI: https://doi.org/10.3365/KJMM.2021.59.2.99

Abstract
In this study, silica aerogel particles were synthesized from emulsion droplets as micro-reactors at room temperature under ambient pressure. An economical precursor, sodium silicate, was used as the starting material for silica, and an emulsification technique was applied to form droplets in continuous phase. By controlling the composition of the... More

Web of Science 6 Crossref 6

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

Investigation of Color Change in Cu-Zn Alloys by Reflectivity and Color Difference Analysis
반사도와 색 차 분석을 이용한 Cu-Zn 합금의 색 변화 고찰

Yeon Beom Jeong, Sung Hwan Hong, Hae Jin Park, Young Seok Kim, Jeong Tae Kim, Hoo Dam Lee, Yun Jung Hwang, Young Hoon Lee, Ki Buem Kim
정연범, 홍성환, 박혜진, 김영석, 김정태, 이후담, 황윤중, 이영훈, 김기범

Korean J. Met. Mater. 2018;56(3):171-176. Published online 2018 Mar 6
DOI: https://doi.org/10.3365/KJMM.2018.56.3.171

Abstract
The change in reflectivity of Cu-Zn alloys was investigated with the modulation of Zn content. The reflectivity of the prepared alloys were compared with pure copper and divided into wavelength regions corresponding to blue, green, yellow, and red colors. As the amounts of Zn increased, the difference in reflectivity of..... More

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