Gas sensor element and method for its fabrication comprising a contamination-resistant coating comprising gamma-delta alumina and a lithium salt
A contamination-resistant gas sensor element and methods for making the same are provided. A sensor element may include a contamination-resistant coating on at least a portion thereof. The coating may comprise gamma-delta alumina and lithium oxide and may have a thickness of about 100 to about 600 m...
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| Format: | Patent |
| Sprache: | eng ; fre ; ger |
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| Zusammenfassung: | A contamination-resistant gas sensor element and methods for making the same are provided. A sensor element may include a contamination-resistant coating on at least a portion thereof. The coating may comprise gamma-delta alumina and lithium oxide and may have a thickness of about 100 to about 600 microns and a porosity of about 20 to about 70 percent. The method may include using gamma-delta alumina and lithium oxide to form a mixture, applying the mixture to at least a portion of a sensor element, and temperature treated the mixture to form a contamination-resistant coating on the surface of the measuring cell. |
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