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Poisoning of Zirconia Exhaust Oxygen Sensors by Silica
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English
Abstract
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.
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Authors
Citation
Holleboom, 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.Also In
References
- Eddy David S. “Physical Principles of the Zirconia Exhaust Gas Sensor,” General Motors Research Laboratories Report-GMR-1480 Nov. 14 19873
- Tekeuchi Takashi Takahashi Hideaki Saji Keiichi Kondo Haruyoshi Igarashi Isemi “Oxygen Sensors A/F Control.” Proceedings of The Second International Pacific Conference on Automotive Engineering Nov. 1983
- Lewis L. L. “Inner Pt Electrode of Exhaust Gas Oxygen Sensor.” General Motors Research Laboratories Analytical Chemistry Department report to B. Holleboom et. al. Nov. 3 1981