Oxidized aluminum overcoat for solid electrolyte sensor

Details Oxidized aluminum overcoat for solid electrolyte sensor Oxidized aluminum overcoat for solid electrolyte sensor

1979-11-28

1981-07-21

Smith, Ronald H.

Metal treatment

Compositions

Heat treating

4271264, 4273833, 4273762, 4273763, 204195S, 428329, C23C 1100, B05D 512

Patent

active

042796660

ABSTRACT:
An inexpensive method for making a durable porous overcoat on a noble metal exhaust electrode of a solid electrolyte exhaust gas oxygen sensor. The electrode is coated with aluminum flakes and the aluminum flakes oxidized in situ by heating in an oxidizing atmosphere.

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patent: 3720985 (1973-03-01), Buescher
patent: 3998375 (1976-12-01), Rudd
patent: 4021326 (1977-05-01), Pollner et al.
patent: 4097353 (1978-01-01), Kishida et al.
patent: 4116883 (1978-09-01), Rhodes
Seiyama et al. "Study of a Detector for Gaseous Components Using Semiconductive Thin Films" Analytical Chemistry, V.33, n. 8, pp 1069-1073 (Jul. 1966).

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