Patent Number: 6,253,441

Title: Fabrication of articles having a coating deposited through a mask

Abstract: A substrate article is processed by masking a first portion of the substrate article with a maskant including a foil layer overlying and contacting the first portion of the substrate article, leaving a second portion of the substrate article exposed, and a mask layer overlying and contacting the foil layer. The mask layer may be formed of a mixture of aluminum oxide and metal powders or carbon. The masked substrate article is processed to deposit a coating, such as an aluminum coating, on the second portion of the substrate article, without removing the maskant. The substrate article may instead be masked by carbon without the underlying nickel layer. After coating, the substrate article may be further processed by brazing to the first portion of the substrate article.

Inventors: Wheat; Gary E. (Madisonville, KY), Brown; Terri K. (Central City, KY)

Assignee: General Electric Company

International Classification: C23C 14/04 (20060101); C23C 10/04 (20060101); C23C 10/00 (20060101); C23C 8/04 (20060101); C23C 4/00 (20060101); B21B 001/46 (); B05D 001/02 (); B05C 011/11 ()

Expiration Date: 07/03/2018