Stabilized zirconia

Details Stabilized zirconia Stabilized zirconia

1996-01-02

1997-08-19

Marcantoni, Paul

Compositions: ceramic

Ceramic compositions

Refractory

501152, C04B 3548

Patent

active

056588372

ABSTRACT:
The invention is directed to improved stabilized zirconia compositions and the processes for making the same. Low cost stabilizers, in the form of ceria/yttria or ceria/yttria
oedynium mixtures, are used to maintain zirconia in tetragonal form at room temperature without tending to convert back to monoclinic form at increased temperatures or while under stress.

REFERENCES:
patent: 4360598 (1982-11-01), Otagiri et al.
patent: 4525464 (1985-06-01), Claussen
patent: 4659680 (1987-04-01), Guile
patent: 4853353 (1989-08-01), Whalen et al.
patent: 4891343 (1990-01-01), Quadair
"Exhaust Gas Purifying Catalyst Excellent in Heat Resistance and its Preparation" Kayano et al. JP 04-284847 (Feb. 24, 1993).
"Manufacture of Solid Electrolyte for Fuel Cell", Okuyama JP 03-196465 (Nov. 21, 1991).

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