Phase stablization of zirconia

Details Phase stablization of zirconia Phase stablization of zirconia

1997-01-30

1999-12-28

Zimmerman, John J.

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

428472, 416241B, B32B 1504, F01D 528

Patent

active

060079266

ABSTRACT:
Stabilized zirconia containing sintered particles of alumina and zirconia tetragonal phase at temperatures below about 1150.degree. C. is prepared by mixing alumina particles of less than 30 nanometers with zirconia particles of less than 30 nanometers in presence of a liquid to form a suspension, drying the suspension at a temperature up to about 600.degree. C. to remove the liquid and products thereof to form a dried suspension composed of agglomerated alumina and zirconia particles, sintering the dried suspension to fuse the particles, and cooling the sintered dried suspension to an ambient temperature to produce free-standing bodies or coatings on substrates.

REFERENCES:
patent: 4639399 (1987-01-01), Aprigliano
patent: 4845056 (1989-07-01), Yamanis
patent: 5059095 (1991-10-01), Kushner et al.
patent: 5147731 (1992-09-01), Gilmore et al.

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