Development of Zirconia Electrolyte Films on Porous Doped Lanthanum Manganite Cathodes by Electrophoretic Deposition

1999 ◽  
Vol 575 ◽  
Author(s):  
R. N. Basu ◽  
C. A. Randall ◽  
M. J. Mayo
Keyword(s):  
Solid Oxide Fuel Cells ◽  
Electrophoretic Deposition ◽  
Yttria Stabilized Zirconia ◽  
Lanthanum Manganite ◽  
Ceramic Powders ◽  
Stabilized Zirconia ◽  
Uniform Coating ◽  
Cathode Tube ◽  
Zirconia Film ◽  
Zirconia Electrolyte

ABSTRACTElectrophoretic deposition (EPD) was explored as an inexpensive route for fabricating the 8mol% yttria stabilized zirconia electrolyte in solid oxide fuel cells (SOFCs). Normally, deposition of particulate ceramic powders onto a sintered porous surface yields a non uniform coating which, after sintering, results in porosity, surface roughness and cracking in the coating. To overcome this problem, the present study used a fugitive graphite interlayer between the porous air electrode supported (AES) cathode tube (doped-LaMnO3) and the deposited zirconia film. By this approach, a fairly dense green coating (˜ 60%) was obtained, which yielded a smooth surface and pore-free microstructure after sintering. Preliminary results on the effect of a fugitive interlayer on the unfired (green) and fired zirconia coatings are discussed.

Direct ceramic inkjet printing of yttria-stabilized zirconia electrolyte layers for anode-supported solid oxide fuel cells

2010 ◽  
Vol 195 (21) ◽  
pp. 7160-7167 ◽  
Author(s):  
R.I. Tomov ◽  
M. Krauz ◽  
J. Jewulski ◽  
S.C. Hopkins ◽  
J.R. Kluczowski ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Inkjet Printing ◽  
Solid Oxide ◽  
Yttria Stabilized Zirconia ◽  
Oxide Fuel ◽  
Stabilized Zirconia ◽  
Zirconia Electrolyte

Processing of Composite Cathode and YSZ Coatings for Solid Oxide Fuel Cells

Materials ◽  
2004 ◽  
Author(s):  
Zhigang Xu ◽  
Devdas Pai ◽  
Jag Sankar
Keyword(s):  
Solid Oxide Fuel Cells ◽  
Ball Milling ◽  
Composite Cathode ◽  
Yttria Stabilized Zirconia ◽  
Lanthanum Manganite ◽  
Sintering Process ◽  
Stabilized Zirconia ◽  
Composite Cathodes ◽  
Ysz Coating ◽  
Effect Of The Composition

In our research, composite cathodes of strontium-doped lanthanum manganite (LSM) and yttria-stabilized zirconia (YSZ) were produced by using slurry casting and sintering procedures. The slurry was prepared using ball milling. The time of ball milling was studied in terms of particle size and homogeneity of the powder in the slurry. The effect of the composition of the slurry on the microstructure was studied to obtain cathodes with desired porosity. The sintering process was also optimized to compromise the porosity, grain size, and strength of the cathodes. The YSZ coating was implemented using electrophoretic deposition in liquid phase. Different charging methods of the YSZ powder in the suspension was used and their results were compared. The microstructures of cathodes and YSZ coatings were characterized using scanning electron microscope (SEM).

Fabrication of micro-tubular solid oxide fuel cells with a single-grain-thick yttria stabilized zirconia electrolyte

2010 ◽  
Vol 195 (23) ◽  
pp. 7825-7828 ◽  
Author(s):  
Toshio Suzuki ◽  
Md. Hasan Zahir ◽  
Toshiaki Yamaguchi ◽  
Yoshinobu Fujishiro ◽  
Masanobu Awano ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Yttria Stabilized Zirconia ◽  
Oxide Fuel ◽  
Stabilized Zirconia ◽  
Zirconia Electrolyte ◽  
Single Grain
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