Stabilized zirconium dioxide compositions and oxygen sensors uti

Details Stabilized zirconium dioxide compositions and oxygen sensors uti Stabilized zirconium dioxide compositions and oxygen sensors uti

1978-03-20

1980-01-15

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

Vacuum arc discharge coating

106 57, C04B 3548, G01N 2758

Patent

active

041837983

ABSTRACT:
Stabilized zirconium dioxide compositions sintered with a silicate flux and stabilized with (i) calcium oxide and (ii) magnesium oxide. The stabilized zirconium dioxide can be sintered at temperatures between 1460.degree. C. and 1480.degree. C. to form solids having high mechanical strength and a specific resistance of 1M.OMEGA.cm at a low temperature. The invention also provides oxygen sensors containing at least one measuring cell which is an oxygen concentration cell having two electrodes separated by and in ionic communication through a solid stabilized zirconium dioxide electrolyte which is prepared from the said compositions.

REFERENCES:
patent: 3404040 (1968-10-01), Mitoff et al.
patent: 3518100 (1970-06-01), Whittemore
patent: 3565645 (1971-02-01), Anderson
patent: 3607323 (1971-09-01), Tedmon et al.
patent: 3632359 (1972-01-01), Alper et al.
Pol Duwez et al., J. Amer. Ceramic Soc., vol. 35, No. 5, pp. 107-113, (1952).

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