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US 11,685,699 B2Granted
Coating methods and materials to reduce aging of SiC hot surface ignitors
AssigneeCoorsTek, Inc.
InventorsMichael J. Hanagan, Al Marshall
Life of this patent
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Abstract
An ignitor that includes at least one layer of silicon dioxide coating a silicon carbide material, methods of making and using the ignitor, and a kit that includes the ignitor are provided. The silicon dioxide coating is not intended to be removed prior to use. Rather, it is intended to remain on the ignitor during use.
Claims20
A method to apply a silicon dioxide coating to a silicon carbide ignitor, comprising:
- coating at least a portion of a silicon carbide material of the silicon carbide ignitor with a silicon dioxide material to produce a silicon carbide ignitor coated with a first layer of the silicon dioxide, wherein the silicon dioxide material is not produced by oxidizing the silicon carbide material of the silicon carbide ignitor;
- and
- drying the first layer of the silicon dioxide material to form a silicon dioxide layer.
An ignitor, comprising:
- a silicon dioxide coating applied to at least a portion of a silicon carbide material of a silicon carbide containing ignitor, wherein a thickness of the silicon dioxide coating is between about 0.1 μm and about 5 μm, and wherein the silicon dioxide coating is not formed from the silicon carbide material.
A kit, comprising:
- a silicon carbide ignitor comprising:
- a silicon carbide material;
- and
- at least one layer of a silicon dioxide material,
- wherein a thickness of the silicon dioxide material is between about 0.1 and about 5 μm,
- wherein the silicon dioxide covers between about 25% and about 100% of a surface area of the silicon carbide material of the silicon carbide ignitor,
- and wherein the silicon dioxide coating is not formed from the silicon carbide material.
4 more elements
Dependencies are inferred from the claim text.