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http://dx.doi.org/10.4191/KCERS.2007.44.1.690

Preparation and Electrical Conductivity of Scandia Stabilized Zirconia by using Ultrasonic Spray Pyrolysis  

Choi, Young-Hoon (Korea Institute of Energy Research (KIER))
Peck, Dong-Hyun (Korea Institute of Energy Research (KIER))
Park, Young-Chul (Korea Institute of Energy Research (KIER))
Lim, Kyoung-Tae (Division of New Materials Engineering, Chungnam National University)
Suhr, Dong-Soo (Division of New Materials Engineering, Chungnam National University)
Wackerl, J. (Institute of Energy Research(IEF-2), Research Centre Julich(FZJ))
Markus, T. (Institute of Energy Research(IEF-2), Research Centre Julich(FZJ))
Publication Information
Journal of the Korean Ceramic Society / v.44, no.12, 2007 , pp. 690-695 More about this Journal
Abstract
Scandia stabilized zirconia (ScSZ) is adapted for electrolyte material of solid oxide fuel cell (SOFC) because of its high ionic conductivity and chemical stability. ScMnSZ1 powder having a composition of $((ZrO_2)_{0.89}(Sc_2O_3)_{0.1}(MnO_2)_{0.01})$ is synthesized by ultrasonic spray pyrolysis (USP) method. Porous ScMnSZ1 powder is obtained by using a pore forming agent. Microstructure and morphology, particle size distribution of porous powder synthesized with 3wt% pore forming agent are investigated. Sintered ScMnSZ1 sample with ground fine powder are also investigated their microstructure and electrical conductivity. The electrical conductivity of sintered ScMnSZ1 samples with ground fine powder was 0.082 S/cm, 0.127 S/cm and 0.249 S/cm at $750^{\circ}C$, $800^{\circ}C$ and $900^{\circ}C$, respectively.
Keywords
ScSZ; SOFC; USP; Microstructure; Electrical conductivity;
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Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By SCOPUS : 0
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