Electrophoretic Deposition of Different Yttria-Stabilized Zirconia Powder on Stainless Steel and Carbon Electrodes

2006 ◽  
pp. 75-80
Author(s):  
Shigeo Hayashi ◽  
Zenbe-e Nakagawa
Keyword(s):  
Stainless Steel ◽  
Electrophoretic Deposition ◽  
Yttria Stabilized Zirconia ◽  
Carbon Electrodes ◽  
Stabilized Zirconia ◽  
Zirconia Powder

Electrophoretic Deposition of Different Yttria-Stabilized Zirconia Powder on Stainless Steel and Carbon Electrodes

2006 ◽  
Vol 314 ◽  
pp. 75-80 ◽  
Author(s):  
Shigeo Hayashi ◽  
Zenbe-e Nakagawa
Keyword(s):  
Stainless Steel ◽  
Electrophoretic Deposition ◽  
Yttria Stabilized Zirconia ◽  
Carbon Electrodes ◽  
Stabilized Zirconia ◽  
Zirconia Powder ◽  
Hno3 Solution ◽  
Starting Point ◽  
Dc Electric Field ◽  
Powder Properties

Stabilized zirconia is a common material for oxygen sensors as a solid electrolyte. The electrophoretic deposition (EPD) behavior of 8Y-YSZ (Yttria-stabilized zirconia with 8 mol% Y2O3) powder was investigated on stainless steel and carbon based substrates. This study will be the starting point for the fabrication of complex shaped (even in micro-scale) YSZ based devices. Ethanol + HNO3 based suspensions were used for the EPD experiments and three different YSZ powders were deposited, one commercially available powder and two own-made coprecipitated powder. The latter powders were calcined at respectively 900 and 1200°C. The concentration of the suspension was 3 g/300 cm3, and a small amount of HNO3 solution was added as a dispersant. DC electric field of 100-200 V/15 mm was applied between parallel electrodes. It was found that on stainless steel electrodes the calcined own-made coprecipitated powder showed the best best deposition properties, whereas the commercial YSZ powder showed the best deposition properties on carbon electrodes. These experimental results are discussed with regard to some powder properties (e.g. particle size distribution and packing behavior) and the adhesion between the particles and the substrate.

Design, preparation, and characterization of Yttria-Stabilized Zirconia (YSZ) coatings obtained by electrophoretic deposition (EPD)

2021 ◽  
Author(s):  
Juan Luis Pantoja-Pertegal ◽  
Antonio Díaz-Parralejo ◽  
Antonio Macías-García ◽  
J.Sánchez González ◽  
Eduardo M. Cuerda-Correa
Keyword(s):  
Electrophoretic Deposition ◽  
Yttria Stabilized Zirconia ◽  
Stabilized Zirconia

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.

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