Titanium and magnesium compound for corrosion-resistant coatings
AssigneeThe Boeing Company
InventorsJohn J. Vajo, Jason Graetz, Alain A. Adjorlolo
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Abstract
A crystalline titanium and magnesium compound having an X-ray diffraction pattern having interplanar spacing (d-spacing) values at about 5.94, 3.10, 2.97, 2.10, 1.98, 1.82, and 1.74±0.1 angstroms may be used in protective coatings for metal or metal alloy substrates. The coatings exhibit excellent corrosion resistances and provide corrosion protection equal to or better than typical non-chromate coatings.
Claims20
A crystalline titanium and magnesium compound, having an X-ray diffraction (XRD) pattern having interplanar spacing (d-spacing) values at 5.94, 3.10, 2.97, 2.10, 1.98, 1.82, and 1.74 angstroms.
A method of preparing a crystalline titanium and magnesium compound, having an X-ray diffraction (XRD) pattern having interplanar spacing (d-spacing) values at 5.94, 3.10, 2.97, 2.10, 1.98, 1.82, and 1.74 angstroms, comprising:
- preparing a solution comprising:
- a titanium compound at a concentration of about 0.1 M to about 0.4 M,
- boric acid at a concentration of about 0.3 M to about 1 M,
- sodium tetraborate at a concentration of about greater than 0 M to about 0065 M, and
- a magnesium compound at a concentration of about 0.01 M to about 0.1 M.
A method, comprising:
- preparing a solution comprising a titanium compound at a concentration of about 0.1 M to about 0.4 M, boric acid at a concentration of about 0.3 M to about 1 M, sodium tetraborate at a concentration of about greater than 0 M to about 0.0065 M, and a magnesium compound at a concentration of about 0.01 M to a 0.1 M to form a titanium/magnesium solution.
Dependencies are inferred from the claim text.