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http://dx.doi.org/10.4191/KCERS.2006.43.2.085

Fabrication of Solid Oxide Fuel Cells with Electron Beam Physical Vapor Deposition: I. Preparation of Thin Electrolyte Film of YSZ  

Kim, Hyoungchul (Nano-Materials Research Center, Korea Institute of Science and Technology)
Koo, Myeong-Seo (Nano-Materials Research Center, Korea Institute of Science and Technology)
Park, Jong-Ku (Nano-Materials Research Center, Korea Institute of Science and Technology)
Jung, Hwa-Young (Nano-Materials Research Center, Korea Institute of Science and Technology)
Kim, Joosun (Nano-Materials Research Center, Korea Institute of Science and Technology)
Lee, Hae-Weon (Nano-Materials Research Center, Korea Institute of Science and Technology)
Lee, Jong-Ho (Nano-Materials Research Center, Korea Institute of Science and Technology)
Publication Information
Journal of the Korean Ceramic Society / v.43, no.2, 2006 , pp. 85-91 More about this Journal
Abstract
Electron Beam Physical Vapor Deposition (EB-PVD) was applied to fabricate a thin film YSZ electrolyte with large area on the porous NiO-YSZ anode substrate. Microstructural and thermal stability of the as-deposited electrolyte film was investigated via SEM and XRD analysis. In order to obtain an optimized YSZ film with high stability, both temperature and surface roughness of substrate were varied. A structurally homogeneous YSZ film with large area of $12\times12\;cm^2$ and high thermal stability up to $900^{\circ}C$ was fabricated at the substrate temperature of $T_s/T_m$ higher than 0.4. The smoother surface was proved to give the better film quality. Precise control of heating and cooling rate of the anode substrate was necessary to obtain a very dense YSZ electrolyte with high thermal stability, which affords to survive after post heat treatment for fabrication a cathode layer on it as well as after long time operation of solid oxide fuel cell at high temperature.
Keywords
Solid oxide fuel cell; Electron beam physical vapor deposition; Solid electrolyte film; Columnar structure;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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