Developing a thick-film cermet
- Inst. de Ceramica y Vidrio, Madrid (Spain). Electroceramics Dept.
The anodes for solid-oxide fuel cells (SOFCs) have been studied by many researchers in order to improve overvoltage characteristics and long-term reliability. These properties strongly depend on the anode material and its morphology. Ni-YSZ (yttria-stabilized zirconia) cermet is a commonly used anode material. Ni-YSZ usually is prepared by an electrochemical vapor deposition (EVD) process or by a powder-mixing process followed by firing under a controlled atmosphere. The objective of this study is to develop a new processing method to prepare 35 vol% Ni-(ZrO{sub 2}-8 mol% Y{sub 2}O{sub 3}){sub 0.9}(TiO{sub 2}){sub 0.1} thick-film cermet. The method should introduce mixed conduction to reduce polarization and efficiency losses. The method should be an alternative to the expensive EVD process and attain a new route toward co-sintering a SOFC single cell.
- OSTI ID:
- 389795
- Journal Information:
- American Ceramic Society Bulletin, Journal Name: American Ceramic Society Bulletin Journal Issue: 9 Vol. 75; ISSN 0002-7812; ISSN ACSBA7
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
ANODES
CARBON
CERMETS
CHEMICAL COMPOSITION
EXPERIMENTAL DATA
MICROSTRUCTURE
MILLING
NICKEL
NICKEL OXIDES
POROSITY
POWDERS
REDUCTION
SCANNING ELECTRON MICROSCOPY
SCREEN PRINTING
SINTERING
SLURRIES
SOLID ELECTROLYTE FUEL CELLS
TITANIUM ADDITIONS
VISCOSITY
X-RAY DIFFRACTION
YTTRIUM OXIDES
ZIRCONIUM OXIDES