Sensor element

Details Sensor element Sensor element

1985-06-05

1986-07-22

Richman, Barry S.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

73 23, 338 34, 422 98, 502303, G01N 2704

Patent

active

046018832

ABSTRACT:
A sensor element comprising a substrate made of a compound oxide of the perovskite type, the compound oxide having the formula A.sub.1-x A'.sub.x B.sub.1-y B'.sub.y O.sub.3 in which A represents a trivalent element selected from the group consisting of La, Ce, Pr and Nd, A' represents a divalent element selected from the group consisting of Ca, Sr and Ba, B represents equal amounts of trivalent and tetravalent Co, B' represents a tetravalent element selected from the group consisting of Fe, Mn, V and Ti, x has a value ranging from (0.6) to (0.95) and y has a value ranging from (0.2) to (0.9) with the proviso that x must equal 1/2(1+y).

REFERENCES:
patent: 3900428 (1975-08-01), Mai et al.
patent: 3901828 (1975-08-01), Mai et al.
patent: 3951603 (1976-04-01), Obayashi et al.
patent: 4049583 (1977-09-01), Lauder
patent: 4221827 (1980-09-01), Parry et al.
patent: 4314996 (1982-02-01), Sekido et al.

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