期刊
CERAMICS INTERNATIONAL
卷 43, 期 7, 页码 5647-5653出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2017.01.098
关键词
Cerium-gadolinium oxide; Rheology; Thin dense layers; Tape casting; Sintering behaviour; Symmetric single-phase cells
资金
- Danish Energy Agency (EUDP-Energy Technology Development and Demonstration Program) through the project SOFC Accelerated-Development to Accelerate Field Demonstrations [64012-0225]
Optimized CGO-based slurries are formulated and shaped into thin dense layers via a tape-casting process. The formulation is adjusted with respect to the rheological behaviour. The internal structure and flow properties of slurries are explored with the aim of identifying the required conditions to obtain thin dense CGO layers at reduced sintering temperatures (1200 degrees C). We demonstrate a correlation between the rheological properties of the slurries, the sintering behaviour and the microstructure of the resulting tapes. Remarkably, a dense CGO layer less than 20 pm thick is obtained with a non-congested slurry, having optimized ceramic loading and liquid-like behaviour.
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