Plastic and nonmetallic article shaping or treating: processes – Outside of mold sintering or vitrifying of shaped inorganic... – Of electrical article or electrical component
Reexamination Certificate
2007-01-19
2010-11-16
Lazorcik, Jason L (Department: 1791)
Plastic and nonmetallic article shaping or treating: processes
Outside of mold sintering or vitrifying of shaped inorganic...
Of electrical article or electrical component
C501S103000, C501S152000
Reexamination Certificate
active
07833469
ABSTRACT:
A method of making a solid electrolyte-YSZ product, where the method includes the step of providing a powdered mixture of zirconia, yttria and about 2%, by wt., or less of a metal oxide, where yttria-stabilized zirconia is not added to the mixture. The method also includes sintering the powdered mixture at about 1500° C. or less, for about 5 hours or less, to form a reaction sintered YSZ. Also, a method of making a fuel cell electrolyte that includes the step of forming a green body that includes zirconia, yttria and about 2%, by wt., or less of a metal oxide, where yttria-stabilized zirconia is not added to the green body. The method also includes shaping the green body into a form of the electrolyte, and sintering the green body at about 1500° C. or less to form a reaction sintered yttria-stabilized zirconia and metal oxide electrolyte.
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Coors W. Grover
Swartzlander Ruthie
CoorsTek, Inc.
Kemmerle, III Russell J
Lazorcik Jason L
Townsend and Townsend / and Crew LLP
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