Process for producing a solid electrolyte layer on a...

Details Process for producing a solid electrolyte layer on a... Process for producing a solid electrolyte layer on a...

2006-08-08

2006-08-08

Crepeau, Jonathan (Department: 1746)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C427S115000, C427S126300, C204S424000, C264S618000

Reexamination Certificate

active

07087336

ABSTRACT:
A method for producing a solid electrolyte layer, of a fully stabilized zirconium oxide layer on a substrate includes adding a sintering additive to a ZrO2-starting material, a liquid phase is formed during a sintering process and liquid phase sintering is possible at a reduced temperature in comparison with the required sintering temperature without the sintering additive. The reduced sintering temperature substantially prevents the formation of a foreign phase layer between the substrate and the gas-tight layer applied thereon, being of fully stabilized ZrO2. The method is particularly suitable for producing a solid electrolyte layer on a cathode of a high temperature fuel cell and in a sensor.

REFERENCES:
patent: 4303447 (1981-12-01), Buchanan et al.
patent: 4764491 (1988-08-01), Quadir
patent: 5171645 (1992-12-01), Khandkar
patent: 0 414 575 (1991-02-01), None
patent: 64 003 070 (1989-01-01), None
V.K. Gil'derman et al.: “Effect of small additions of electrically conductive oxides on the oxygen permeability of a zirconium dioxide+yttrium sesquioxide (0.9ZrO2+0.1Y2O3) solid electrolyte”,Chemical Abstracts 86: 9906H, vol. 86, Oct. 1, 1977, No. 2, XP-002158608.
R.C. Buchanan et al.: “Densification of Submicron YSZ Powders With Alumina and Borate Additives”, Technical Final Report No. 9, Contract US NAVY-N-00014-80-K-0969, vol. 85, No. 8, Dec. 1984, pp. 1-41, XP-001051439.
S. Ramesh et al.: “The effect of copper oxide on sintering, microstructure, mechanical properties and hydrothermal ageing of coated 2.5Y-TZP ceramics”,Journal of Materials Science, No. 34, 1999, pp. 5457-5467, XP-000978655.

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