US Patent Application 18302964. LASER TREATMENT OF MACHINED CERAMIC SURFACE FOR SEALING simplified abstract

LASER TREATMENT OF MACHINED CERAMIC SURFACE FOR SEALING

Organization Name

Raytheon Technologies Corporation

Inventor(s)

Howard J. Liles of Newington CT (US)

LASER TREATMENT OF MACHINED CERAMIC SURFACE FOR SEALING - A simplified explanation of the abstract

This abstract first appeared for US patent application 18302964 titled 'LASER TREATMENT OF MACHINED CERAMIC SURFACE FOR SEALING

Simplified Explanation

The patent application describes a method for machining a silicon-containing gas turbine engine article to create a specific feature.

• The machining process removes the closed-pore surface of the article, resulting in an open-pore machined surface.
• The open-pore machined surface is then treated with a laser to induce the formation of an oxide in the article.
• This oxide seals the open-pore machined surface, transforming it into a closed-pore treated surface.
• The purpose of this method is to improve the performance and durability of the gas turbine engine article.

Original Abstract Submitted

A method includes machining a closed-pore surface of a silicon-containing gas turbine engine article to produce a feature. The machining causes removal of the closed-pore surface to produce an open-pore machined surface. The open-pore machined surface is then laser-treated to cause formation of an oxide in the silicon-containing gas turbine engine article that seals the open-pore machined surface to produce a closed-pore treated surface.