Corrosion resistant coatings containing an amorphous phase
AssigneeElisha Technologies Co LLC
InventorsRobert L. Heimann, William M. Dalton, David R. Webb, Nancy M. McGowan
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Abstract
The disclosure relates to the forming mineralized coatings on metal surfaces and to methods of forming such coatings. The coating can include a wide range of compounds and normally at least a portion of the coating corresponds to an amorphous phase. The coating and method are particularly useful in providing a corrosion resistant coating or film upon a metallic surface. This aspect of the disclosure involves the formation of a corrosion resistant "mineralized" layer of tailored composition upon a metal substrate.
Claims16
A mineralized surface comprising an amorphous phase and an inorganic crystalline material said inorganic crystalline material comprising zinc, silicon, oxygen, at least one member selected from the group consisting of sodium, potassium and calcium wherein the amount of oxygen present in said inorganic crystalline material is less than the stoichiometric.
A mineralized surface comprising an amorphous phase and a complex oxide phase comprising
- Zn.sub.x B.sub.y O.sub.z --nH.sub.2 O
- wherein B comprises silicon and at least one member selected from the group consisting of sodium, potassium and calcium wherein the values of x, y and z are greater than 0 and the ratio of y:z is less than or equal to 4:1.
A mineralized surface formed by reacting a mineral precursor comprising a combination of at least one carrier and at least one silicate comprising at least one member selected from the group consisting of calcium silicate, potassium silicate and sodium silicate with a surface comprising zinc or a zinc containing alloy wherein said surface comprises an amorphous phase and an inorganic crystalline material said inorganic crystalline material comprising zinc, silicon, oxygen, and at least one member selected from the group consisting of sodium, potassium and calcium.
Dependencies are inferred from the claim text.