Solid electrolyte for use in oxygen concentration sensor

Details Solid electrolyte for use in oxygen concentration sensor Solid electrolyte for use in oxygen concentration sensor

1981-02-05

1982-05-04

Meros, Edward J.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

501103, 204195S, C04B 3548, H01M 618

Patent

active

043282954

ABSTRACT:
A solid electrolyte for an oxygen concentration sensor is provided by mixing ZrO.sub.2 and about 7.5 to 8.5% by mol of a stabilizer such as Y.sub.2 O.sub.3, grinding the mixture to have a BET specific surface are of about 9 to 20 m.sup.2 /g, adding to the ground mixture a forming aid, forming the mixture into a predetermined configuration and firing the formed mixture at about 1420.degree. to 1520.degree. C. The electrolyte has a surface-average grain size of about 5 microns or less and a structure of a cubic phase alone at the surface thereof and even in a finely ground state.

REFERENCES:
patent: 3301646 (1967-01-01), Smoot
patent: 3432314 (1969-03-01), Mazdiyasni et al.
patent: 3843400 (1974-10-01), Radford et al.
patent: 4170531 (1979-10-01), Watanabe et al.
patent: 4205051 (1980-05-01), Takahashi et al.
patent: 4219359 (1980-08-01), Miwa et al.

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