THERMAL SHOCK RESISTANT GAS SENSOR ELEMENT

摘要

A thermal shock resistant sensor element that includes a sensor element (10) having a gamma alumina coating (62) on at least a portion thereof. The thermal shock resistant sensor element is thermal shock resistant at temperatures greater than about 600°C. A method of making a thermal shock resistant element that includes plasma spraying gamma alumina onto a sensor element to form a thermal shock resistant element. The thermal shock resistant sensor element is thermal shock resistant at temperatures greater than about 500°C. A thermal shock resistant sensor element that includes a sensor element having an alumina coating on at least a portion thereof. The thermal shock resistant sensor element is thermal shock resistant at temperatures greater than about 500°C and demonstrates a Si poisoning resistance.