Al2O3 toughening ScSZ electrolyte fabricated by water-based tape casting technique for solid oxide fuel cells

2021 ◽  
pp. 1-17
Author(s):  
Haoran Wang ◽  
Ze Lei ◽  
Han Zhang ◽  
Yongkang Li ◽  
Junmeng Jing ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Bending Strength ◽  
Tape Casting ◽  
Solid Oxide ◽  
Electrical Performance ◽  
Oxide Fuel ◽  
Casting Technique ◽  
Electrolyte Film ◽  
Water Based

Abstract A water-based tape casting slurry is reported to prepare the ceria and scandia co-doped zirconia (ScSZ) electrolyte films. The slurry is characterized and optimized through Zeta potential and rheological property measurements. Smooth and flat ScSZ electrolyte films are obtained by improving the sintering process. The microstructure, electrical performance, and mechanical property of ScSZ with adding different contents of Al2O3 are also investigated. The results show that a proper amount of Al2O3 has a beneficial effect on the densification of ScSZ. Significant decrease at the grain boundary resistance of ScSZ is observed by Al2O3 addition. The bending strength of the sample with 0.5 wt.% Al2O3 (ScSZ-0.5A) is about 400 MPa, which is 20% higher than pure ScSZ. The ScSZ-0.5A electrolyte film fabricated by water-based tape casting method shows appropriate electrical conductivity and high mechanical strength, which is promising for the practical application in solid oxide fuel cells (SOFCs).

scholarly journals Environmentally-friendly magnetoelectric ceramic multilayer composites by water-based tape casting

2019 ◽  
Vol 39 (4) ◽  
pp. 1065-1072 ◽  
Author(s):  
Washington Santa-Rosa ◽  
Michel Venet ◽  
Jean-Claude M’Peko ◽  
Rodrigo Moreno ◽  
Harvey Amorín ◽  
...  
Keyword(s):  
Tape Casting ◽  
Environmentally Friendly ◽  
Multilayer Composites ◽  
Water Based

Free-Standing Garnet-Type Solid Electrolyte Separators Fabricated By Water-Based Tape-Casting

2020 ◽  
Vol MA2020-02 (5) ◽  
pp. 928-928
Author(s):  
Ruijie Ye ◽  
Martin Finsterbusch ◽  
Egbert Figgemeier
Keyword(s):  
Solid Electrolyte ◽  
Tape Casting ◽  
Free Standing ◽  
Water Based

Preparation and Electrical Properties of Multilayer Zinc Oxide Varistor by Gelcasting

2014 ◽  
Vol 852 ◽  
pp. 285-290
Author(s):  
Mao Yan Fan ◽  
Li Fang Zhang ◽  
Hong Xiao ◽  
Tian Tian Xie
Keyword(s):  
Electrical Properties ◽  
Tape Casting ◽  
Optimum Concentration ◽  
Water Soluble ◽  
Solid Loading ◽  
High Solid Loading ◽  
Water Based ◽  
Zno Varistors ◽  
Zinc Oxide Varistor ◽  
Positive Effect

Multilayer ZnO varistors were prepared by aqueous gel tape casting with water-soluble acrylamide as binder. 0.8wt% PAA dispersant was found to be the optimum concentration needed to prepare stable slurry. Plasticizer glycerol has a positive effect on the fluidity of the suspension and oxygen anti-polymerizing inhibitor PEG 2000 deteriorated the fluidity. The addition of 15wt. % PEG2000 eliminates the surface exfoliation absolutely due to the oxygenation of ether units. The solid loading of the slurry was about 71wt% compared to the custom acrylic formulation binder 60wt%. The multilayer ZnO varistors prepared by aqueous gel tape casting display comparable good electrical properties to those prepared by water-based tape casting using custom acrylic formulation binder which is attributed to the high solid loading of slurry.

Rheological characterization of water-based slurries for the tape casting process

2002 ◽  
Vol 28 (6) ◽  
pp. 675-683 ◽  
Author(s):  
Bernd Bitterlich ◽  
Christiane Lutz ◽  
Andreas Roosen
Keyword(s):  
Tape Casting ◽  
Casting Process ◽  
Rheological Characterization ◽  
Water Based
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