Developing a thick-film cermet

Journal Article · Sun Sep 01 00:00:00 EDT 1996 · American Ceramic Society Bulletin

OSTI ID:389795

Colomer, M T; Nieto, E; Jurado, J R ^[1]

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1. 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, Vol. 75, Issue 9; Other Information: PBD: Sep 1996
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
30 DIRECT ENERGY CONVERSION
CERMETS
SINTERING
MICROSTRUCTURE
NICKEL
ZIRCONIUM OXIDES
YTTRIUM OXIDES
SOLID ELECTROLYTE FUEL CELLS
ANODES
TITANIUM ADDITIONS
POWDERS
CHEMICAL COMPOSITION
MILLING
NICKEL OXIDES
CARBON
REDUCTION
SLURRIES
VISCOSITY
SCREEN PRINTING
POROSITY
X-RAY DIFFRACTION
SCANNING ELECTRON MICROSCOPY
EXPERIMENTAL DATA