Phase Stabilization of Zirconia
Patent, Filed 30 Jan 1997, patented 28 Dec 1999
DEPARTMENT OF THE NAVY WASHINGTON DC
Pagination or Media Count:
Stabilized zirconia containing sintered particles of alumina and zirconia in tetragonal phase at temperatures below about 1150 deg 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 6000 deg 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.
- Ceramics, Refractories and Glass
- Coatings, Colorants and Finishes