Method of manufacturing oxygen sensor

Details Method of manufacturing oxygen sensor Method of manufacturing oxygen sensor

1981-03-16

1983-02-08

Tufariello, T.

Chemistry: electrical and wave energy

Processes and products

204 26, 204 37R, 204 38B, 204195S, C25D 510, C25D 534, C25D 550, C25D 704

Patent

active

043728243

ABSTRACT:
A method of manufacturing an oxygen sensor composed of oxygen ion transmissible solid electrolyte which is operative to detect an oxygen concentration in exhaust gas delivered from an internal combustion engine for the purpose of controlling a ratio of air to fuel in a mixed gas to be supplied to the combustion engine and which comprises successive steps of adhering to the outer surface of the solid electrolyte an outside electrode having a thickness of at least 0.5.mu. by thin film techniques, heat treating the outside electrode and providing on the outside electrode a number of holes or broken holes whose diameter or width is larger than the thickness of the outside electrode, adhering to the inner surface of the solid electrolyte a porous inside electrode by thin film technique or suspension coating process, and heat treating the inside electrode at a temperature lower than the temperature at which metals constituting the inside electrode begin to be sintered.

REFERENCES:
patent: 3978006 (1976-08-01), Topp
patent: 4297192 (1981-10-01), Shinohara
patent: 4303490 (1981-12-01), Gold

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