| 摘要 |
A resistive oxygen sensor has an oxygen sensitive-layer based on a complex metal oxide with the general formula LaCu1-xFexO3-y where La is Lanthanum, Cu is copper, Fe is iron, O is oxygen, and 0.1 <= x <= 0.5 and where depending upon the composition y is the oxygen deficit occurring after the establishment of electro-neutralization. No more than 10 per cent of the La ions and/or Cu ions and/or Fe ions are replaced by other ions with another valency. No more than 50 pr cent of the La ions and/or Fe ions are replaced by another ion of the same valency. The ratio of La/(Fe + Cu) in lieu 1 greater than 0.9 or less than 1.1. The oxygen sensor may incorporate a sintering agent, and an intermediate layer of SrAl2O4 between the substrate (Al2O3, MgO, ZrO2 or AIN) and the sensor functional layer.
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