http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
열전지 양극용 FeS<sub>2</sub> 분말의 성형성에 미치는 Li<sub>2</sub>O 첨가 및 열처리의 효과
류성수,이원진,김성원,정해원,조성백,강승호,이성민,Ryu, Sung-Soo,Lee, Won-Jin,Kim, Seongwon,Cheong, Hae-Won,Cho, Sung-Baek,Kang, Seung-Ho,Lee, Sung-Min 한국분말야금학회 2014 한국분말재료학회지 (KPMI) Vol.21 No.3
$FeS_2$ has been widely used for cathode materials in thermal battery because of its high stability and current capability at high operation temperature. Salts such as a LiCl-KCl were added as a binder for improving electrical performance and formability of $FeS_2$ cathode powder. In this study, the effects of the addition of $Li_2O$ in LiCl-KCl binder on the formability of $FeS_2$ powder compact were investigated. With the increasing amount of $Li_2O$ addition to LiCl-KCl binder salts, the strength of the pressed compacts increased considerably when the powder mixture were pre-heat-treated above $350^{\circ}C$. The heat-treatment resulted in promoting the coating coverage of $FeS_2$ particles by the salts as $Li_2O$ was added. The observed coating as $Li_2O$ addition might be attributed to the enhanced wettability of the salt rather than its reduced melting temperature. The high strength of compacts by the $Li_2O$ addition and pre-heat-treatment could improve the formability of $FeS_2$ raw materials.
탄산화 및 염해의 복합작용에 의한 콘크리트의 결합재 구성에 따른 내구성능 평가에 관한 실험적 연구
김규용(Kim Gyu-Yong),김영봉(Kim Young-Bong),김영선(Kim Young-Sun),조봉석(Cho Bong-Suk),김무한(Kim Moo-Han) 대한건축학회 2008 大韓建築學會論文集 : 構造系 Vol.24 No.8
Durability evaluations to assess the deterioration of reinforced concrete structures in the present have been considered only individual deterioration factors such as salt damage and carbonation. Also, indoor accelerated experiments have not been able to realize the combined deterioration factors that actually affect real concrete structures. Therefore, in this study, mixing design was proportioned with the various water-binder ratio 0.55 binder compositions corresponding to TypeⅠ cement without any supplementary materials (OPC), TypeⅡ cement with 50% blast-furnace slag replacement (BFS50), TypeⅢ cement with 15% fly ash replacement (FA15), and ternary cement with TypeⅣ cement, 15% fly ash, and 35% slag replacement (BFS35 / FA15). And this study is carried out to compare individual deterioration test with combined deterioration test and to investigate the effect of the permeation of deterioration factors such as CO2 and chloride ion under the combined deterioration environments. After setting up various deterioration factors and levels such as carbonation, salt damage, and the repetition of drying-wetting, items such as carbonation, chloride ion penetration were evaluated under the combined deterioration environments. The results showed that carbonation and chloride ion penetration depth were increased according to the combined deterioration environments.