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Pore orientation of the gadolinia‐doped ceria cathode interlayer for a tubular SOFC using dip‐coating
Author(s) -
Liang Bo,
Zhang Silong,
Lu Shengguo,
Sui Sheng,
Shang Jinlei
Publication year - 2016
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.12625
Subject(s) - materials science , yttria stabilized zirconia , scanning electron microscope , cathode , sintering , dip coating , coating , composite material , electrolyte , solid oxide fuel cell , focused ion beam , doping , oxide , cubic zirconia , chemical engineering , ion , ceramic , metallurgy , electrode , optoelectronics , chemistry , physics , quantum mechanics , engineering
An active region of cathode interlayer in a tubular solid oxide fuel cell (SOFC) is structurally analyzed using a dual‐beam focused ion beam/scanning electron microscope (FIB/SEM). The GDC (10 mol% gadolinia‐doped ceria) cathode interlayer (about 1 μm in thickness) is dip‐coated, and then sintered on YSZ (8 mol% yttria‐stabilized zirconia) electrolyte. At 1150°C sintering temperature, the pores oriented more along the axial direction than the radial direction. The anisotropy of pore shape is accounted for the withdrawal force during the dip‐coating of the GDC interlayer.

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