Process for producing zirconium oxide sintered body

Details Process for producing zirconium oxide sintered body Process for producing zirconium oxide sintered body

1984-12-19

1985-09-17

McCarthy, Helen M.

Compositions: ceramic

Ceramic compositions

Refractory

204424, 264 66, 501105, 501152, C04B 3548

Patent

active

045421102

ABSTRACT:
A zirconium oxide sintered body for an oxygen concentration sensor is produced by mixing 87.5 to 91.0% by weight of zirconium oxide powder, 8.5 to 12.3% by weight of yttrium oxide powder, 0.5% by weight or less of silicon oxide and 0.2 to 1.0% by weight of aluminum oxide, drying the resulting mixture, followed by sintering so as to make the cubic phase content in crystal phase of the resulting sintered body at ordinary temperatures 95% by weight or more. Said zirconium oxide sintered body is excellent in mechanical strength, thermal shock and ionic conductivity and can be used stably for a long period of time.

REFERENCES:
patent: 4193857 (1980-03-01), Bannister et al.
patent: 4219359 (1980-08-01), Miwa et al.
patent: 4266979 (1981-05-01), Miyoshi et al.
patent: 4316964 (1982-02-01), Lange et al.
patent: 4328294 (1982-05-01), Tanaka et al.
patent: 4328296 (1982-05-01), Tanaka et al.
patent: 4465778 (1984-08-01), Brook et al.
Andreeva, A. B. et al., "A Highly Refractory Material Based on Zirconia Stabilized with Yttrium and Aluminum Oxides"-Refractories-vol. 14, No. 3-4, pp. 244-246, Mar.-Apr. 1973 (publ. Jan. 1974).

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