Zirconia porcelain and method of manufacturing the same

Details Zirconia porcelain and method of manufacturing the same Zirconia porcelain and method of manufacturing the same

1984-09-06

1986-09-09

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Refractory

501134, 501152, C04B 3548, C04B 3550

Patent

active

046109676

ABSTRACT:
Disclosed herein is a zirconia porcelain which includes 1.5-5 mol % of yttrium oxide, 1-5.5 mol % of cerium oxide and the balance being substantially zirconium oxide. Disclosed herein also is a method of producing a zirconia porcelain, which includes the steps of preparing a mixed powder including 1.5-5 mol % of yttrium oxide, 1-5.5 mol % of cerium oxide and the balance being substantially zirconium oxide having an average particle size of less than 1.5 .mu.m when measured according to an air permeation method, shaping the mixed powder into a molding, and firing the molding thus at a temperature of 1,100.degree. C.-1,700.degree. C.

REFERENCES:
patent: 3287143 (1966-11-01), Yavorsky
patent: 3957500 (1976-05-01), Pitts
patent: 4328296 (1982-05-01), Tanaka et al.
patent: 4360598 (1982-11-01), Otagiri et al.
patent: 4370393 (1983-01-01), Watanabe et al.

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