Air data probe corrosion protection
AssigneeRosemount Aerospace Inc.
InventorsSteven Poteet, Marc E. Gage, Blair A. Smith
Life of this patent
Estimating the term…
Abstract
A method can include vapor depositing a corrosion resistant coating to internal and external surfaces of a metallic air data probe. For example, vapor depositing can include using atomic layer deposition (ALD). The method can include placing the metallic air data probe in a vacuum chamber and evacuating the vacuum chamber before using vapor deposition. The corrosion resistant coating can be or include a ceramic coating. In certain embodiments, vapor depositing can include applying a first precursor, then applying a second precursor to the first precursor to form the ceramic coating.
Claims15
A method, comprising:
- metal plating a metallic layer to at least a portion of a metallic air data probe before applying a first precursor;
- vapor depositing a corrosion resistant coating to internal and external surfaces of the metallic air data probe, wherein vapor depositing includes using chemical vapor deposition (CVD) or atomic layer deposition (ALD) on at least the portion of the metallic air data probe covered by the metallic layer and/or on at least a portion of the metallic air data probe not covered by the metallic layer,
- wherein the corrosion resistant coating is a uniform thickness across the internal and external surfaces of the metallic air data probe, wherein the corrosion resistant coating is or includes a ceramic coating, wherein vapor depositing includes applying the first precursor, then applying a second precursor to the first precursor to form the ceramic coating, wherein applying the first precursor includes applying the first precursor to at least a portion of the metallic layer, wherein the metallic layer includes at least one of platinum, Pd, Ru, or gold having a thickness between about 5 nm to about 20 nm.
Dependencies are inferred from the claim text.