Methods for producing oxygen-sensing element, particularly for u

Details Methods for producing oxygen-sensing element, particularly for u Methods for producing oxygen-sensing element, particularly for u

1974-09-23

1976-08-31

Dees, Carl F.

Compositions

X-ray or neutron shield

204195S, 60276, B01J 3500, F01N 300

Patent

active

039780066

ABSTRACT:
Methods for making an exhaust-gas-sensing element which is an oxygen concentration cell having a solid electrolyte with an electron-conductive surface on the side exposed to the reference air and a catalytic electron-conductive layer containing micro pores which extend through to the solid electrolyte on the other surface which is adapted to be exposed to the exhaust gases. The electron-conductive catalytic layer is covered with a porous protective layer. The method comprising applying the catalytic layer by means of thin layer techniques and then heating to form the micro pores; or by applying a paste comprising ceramic particles, catalytic particles and a thinning oil and sintering.

REFERENCES:
patent: 2965583 (1960-12-01), Houdry et al.
patent: 3347767 (1967-10-01), Hickam
patent: 3468780 (1969-09-01), Fischer
patent: 3645875 (1972-02-01), Record et al.
patent: 3844920 (1974-10-01), Burgett et al.
patent: 3906721 (1975-09-01), Micheli et al.

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