Spray shadowing for stress relief and mechanical locking in thick protective coatings

Patent · Tue May 22 00:00:00 EDT 2007

OSTI ID:909414

Hollis, Kendall ^[1]; Bartram, Brian ^[1]

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1. Los Alamos, NM

A method for applying a protective coating on an article, comprising the following steps: selecting an article with a surface for applying a coating thickness; creating undercut grooves on the article, where the grooves depend beneath the surface to a bottom portion with the grooves having an upper width on the surface and a lower width on the bottom portion connected by side walls, where at least one of the side walls connects the upper width and the lower width to form an undercut angle with the surface less than 90.degree.; and, applying the protective coating onto the article to fill the undercut grooves and cover the surface, thereby forming weak paths within the protective coating.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-36
• Assignee: Los Alamos National Security, LLC (Los Alamos, NM)
• Patent Number(s): 7,220,458
• Application Number: 11/140,661
• OSTI ID: 909414
• Country of Publication: United States
• Language: English

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