A novel gel-casting method has been developed from general slurry tape casting technique to prepare electrolyte films and bi-layers of electrolyte and anode. This method permits to fabricate electrolyte layer as thin as 10–30 microns after sintering. In the study, a factorial experiment design was performed on the quantities of the gelling agent and the binders for the gel casting of electrolyte thin films and fuel cell bi-layers. The quality of the green films was assessed to determine the optimal amount of the gelling agent and the binders. The films were sintered at different temperatures from 1200°C to 1450°C to test the sinterability of the films. The sintering were also performed with impregnation of Bi(NO3)3 resulting in a great improvement in densification at lower temperature.
Prepare Electrolyte and Electrolyte/Anode Bi-Layers for Solid Oxide Fuel Cells With Novel Gel-Casting Method
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Xu, Z, Rajaram, G, & Sankar, J. "Prepare Electrolyte and Electrolyte/Anode Bi-Layers for Solid Oxide Fuel Cells With Novel Gel-Casting Method." Proceedings of the ASME 2008 International Mechanical Engineering Congress and Exposition. Volume 15: Processing and Engineering Applications of Novel Materials. Boston, Massachusetts, USA. October 31–November 6, 2008. pp. 95-99. ASME. https://doi.org/10.1115/IMECE2008-67717
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