Patent ID: 7998593
Filing Date: 2011-08-16
Classification: B32B,C23C,C25D,Y10T

Abstract:
1. A process for coating of a metallic seal comprising: applying a first intermediate layer to a base metal; applying a second intermediate layer overlying the first intermediate layer; applying a first coating layer comprising silver overlying the second intermediate layer; applying a second coating layer comprising indium overlying the second coating layer; baking the base metal with applied intermediate and coating layers at a temperature to diffuse first and second coating layers to form a silver indium alloy coating layer having of thickness within the range of 50 to 100 μm, wherein the coated metallic seal is operable at a temperature of 1400° F. (760° C.) and at temperatures up to 1750° F. (954° C.), and is capable of being deformed.