Ni-YSZ self-supported films by gel electrophoresis

The manufacturing of metal–ceramic self-supported films by a colloidal process for fuel cell applications is reported. Ni and Ni-YSZ (with 30 vol.% YSZ) self-supported films have been prepared by combining electrophoretic deposition in water suspensions with thermogelling properties of carrageenan....

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Bibliographic Details
Published inCeramics international Vol. 31; no. 6; pp. 863 - 868
Main Authors Ferrari, Begoña, de Francisco, Isabel María, Moreno, Rodrigo
Format Journal Article
LanguageEnglish
Published Kidlington Elsevier Ltd 2005
Elsevier Science
Subjects
A. Films
A. Shaping
A. Suspensions
Applied sciences
Building materials. Ceramics. Glasses
Ceramic industries
Cermets, ceramic and refractory composites
Chemical industry and chemicals
Cross-disciplinary physics: materials science; rheology
Dispersion-, fiber-, and platelet-reinforced metal-based composites
Exact sciences and technology
Materials science
Metals. Metallurgy
Miscellaneous
Other materials
Physics
Specific materials
Technical ceramics
A. Shaping
A. Films
A. Suspensions
Scanning electron microscopy
Stratified material
Film
Stabilized zirconia
Particle suspension
Experimental study
Oxide ceramics
Composite material
Colloidal gel
Zirconium oxide
Shaping
Free-standing film
Nickel
Yttrium oxide
Manufacturing
Microstructure
Fuel cell
Electrophoretic deposition
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Summary:The manufacturing of metal–ceramic self-supported films by a colloidal process for fuel cell applications is reported. Ni and Ni-YSZ (with 30 vol.% YSZ) self-supported films have been prepared by combining electrophoretic deposition in water suspensions with thermogelling properties of carrageenan. Deposition is carried out on graphite electrodes which are removed on heating. The effect of the suspension solids loading and the concentration of gelling binder on the suspension rheology and electrophoretic deposition (EPD) performance are studied, as well as the deposition kinetics to optimize the deposit formation. Formed deposits are treated in air at 800 °C for graphite burning out and further sintered in reducing N 2/10% H 2 atmosphere at temperatures ranging from 1100 to 1400 °C. Porous films with homogeneous distribution of phases are obtained.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0272-8842
1873-3956
DOI:10.1016/j.ceramint.2004.09.014