Fabrication and Electrical Conductivity of a YSZ-NiCr Cermet

Abstract:

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YSZ-NiCr powder was synthesized by gel-reduction process at 850°C for 2 h. YSZ-NiCr cermet was fabricated by hot-press sintering at 1350°C for 1 h. The powder has a mean particle size of 42 nm and the sintered specimen has a fine and homogeneous microstructure with a mean crystalline size of 0.2 &m. The conductivity has a tendency to decrease with increasing temperature. This behavior can be accounted for that there are two conduction paths through the cermet, an electronic path through the Ni/Cr metal phase and an ionic path through the ZrO2-Y2O3 phase. The objective of this work is to give a possible improvement in the cermet anode of SOFC.

Info:

Periodical:

Key Engineering Materials (Volumes 336-338)

Edited by:

Wei Pan and Jianghong Gong

Pages:

384-386

DOI:

10.4028/www.scientific.net/KEM.336-338.384

Citation:

G. Q. Shao et al., "Fabrication and Electrical Conductivity of a YSZ-NiCr Cermet", Key Engineering Materials, Vols. 336-338, pp. 384-386, 2007

Online since:

April 2007

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Price:

$35.00

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