NiYSZCermets
NiYSZCermets, or Ni-YSZ cermets, are nickel–yttria-stabilized zirconia ceramic–metal composites used primarily as anodes in solid oxide fuel cells and related solid oxide devices. The material combines a nickel metal phase with a yttria-stabilized zirconia ceramic matrix. Nickel provides electronic conductivity and catalytic activity for fuel oxidation, while YSZ offers oxygen-ion conductivity and structural support, enabling electrochemical reactions at the electrode.
The typical microstructure is a porous network of nickel particles embedded in a YSZ matrix, producing a
Key properties include high electronic conductivity at operating temperatures (roughly 700–1000°C), good catalytic activity for hydrogen
Limitations and challenges involve Ni sintering and coarsening, which can reduce porosity and TPB length over