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Poisoning of Zirconia Exhaust Oxygen Sensors by Silica
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1986 by SAE International in United States
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The performance of Zirconia Exhaust Oxygen Sensors can be altered by several poisons. Silica produced by the oxidation of volatile silicones is one of the most severe poisons and can affect both the exhaust side of the sensor and the air reference side. This paper presents an overview of the subject of silica poisoning including field observations of silica poisoning, the mechanism of the poisoning, test techniques to evaluate silicone bearing materials and sensor poisoning sensitivity. Some data on improving resistance to poisoning is also presented.
CitationHolleboom, B., Hawes, S., and Ker, E., "Poisoning of Zirconia Exhaust Oxygen Sensors by Silica," SAE Technical Paper 860478, 1986, https://doi.org/10.4271/860478.
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