Preparation of YSZ Electrolyte for SOFC by Electron Beam PVD

Tae Ho Shin; Ji Heang Yu; Shi Woo Lee; In Sub Han; Sang Kuk Woo; Byung Koog Jang; Sang Hoon Hyun

doi:10.4028/www.scientific.net/KEM.317-318.913

Paper Titles

Sintering and Electronic Conducting Properties of La_0.8Ca_0.2CrO₃ Perovskite-Type Complex Oxides Synthesized by Different Methods
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Magnetic and Electronic Properties of Transition Metal Doped β-SiC - A Diluted Magnetic Semiconductor
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Development of Ferrite Magnetic Materials with High Strength by a Low-Temperature Sintering Method
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Processing and Mechanical Properties of Microcellular Ceramics
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Preparation and Properties of a Novel Anode of Interpenetrating Phase Composite Structure
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Fabrication and Fuel Cell Properties of Gd-Doped CeO₂ Micro-Tube Ceramics Reactors Prepared by Gel Precursor
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Preparation of YSZ Electrolyte for SOFC by Electron Beam PVD
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Effect of Alumina Additions on Mechanical and Electrical Properties of 8mol% Yttria-Stabilized Zirconia Prepared by Spark Plasma Sintering
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Sealing Behavior of Visco-Elastic Composite Seals for SOFC Applications
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Preparation of YSZ Electrolyte for SOFC by Electron Beam PVD

Abstract:

Yttria stabilized zirconia (YSZ) films with the thickness of up to 12 μm were prepared on alumina and NiO-YSZ substrates by electron beam physical vapor deposition (EB-PVD). The films showed nano-scaled columnar structures depending on the substrate temperature. Electrical conductivity of the YSZ films on alumina was also investigated at the temperature between 700 and 1000oC in oxidizing atmosphere. High activation energy of the conductivity (>1.03eV) indicated that the conduction via grain boundary controlled the ionic conduction in the films prepared by EB-PVD. La0.6Sr0.4CoO3-δ as a cathode was applied on the YSZ/NiO-YSZ in order to evaluate the performance of the YSZ electrolyte.