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CeO<sub>2</sub> 코팅을 통한 Cu 입자의 입성장 억제 효과에 관한 연구
유희준,문지웅,오유근,문주호,황해진,Yoo Hee-Jun,Moon Ji-Woong,Oh You Keun,Moon Jooho,Hwang Hae Jin 한국분말야금학회 2005 한국분말재료학회지 (KPMI) Vol.12 No.6
Copper is able to work as a current collector under wide range of hydrocarbon fuels without coking in Solid oxide fuel cells (SOFCs). The application of copper in SOFC is limited due to its low melting point, which result in coarsening the copper particle. This work focuses on the sintering of copper powder with ceria coating layer. Ceria-coated powder was prepared by thermal decomposition of urea in $Ce(NO_3)_3\cdot6H_2O$ solution, which containing CuO core particles. The ceria-coated powder was characterized by XRD, ICP, and SEM. The thermal stability of the ceria-coated copper in fuel atmosphere $(H_2)$ was observed by SEM. It was found that the ceria coating layer could effectively hinder the grain growth of the copper particles.