Stabilized zirconia powders

Details Stabilized zirconia powders Stabilized zirconia powders

1988-12-12

1991-03-12

Straub, Gary P.

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

423266, 501103, 501104, C01G 2502, C04B 3548

Patent

active

049991825

ABSTRACT:
Sinterable, morphologically and chemically homogeneous stabilized zirconia fine powders, e.g., yttrium-stabilized zirconia powders, are prepared by heat treating aerosol droplets which comprise a mixed precursor solution of at least one inorganic zirconium salt and at least one inorganic salt of a zirconia-stabilizing element, said heat treating including (a) heating the aerosol droplets to a temperature of from 400.degree. to 500.degree. C. for a period of time of from 4 seconds to 2 hours, and thereafter (b) calcining such droplets at a temperature of from 650.degree. to 1,250.degree. C.

REFERENCES:
patent: 4619817 (1986-10-01), Stambaugh
patent: 4639356 (1987-01-01), O'Toole
patent: 4788045 (1988-11-01), Colombet
patent: 4789651 (1988-12-01), Masuo et al.

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