Fiber-reinforced self-healing environmental barrier coating

US11668198B2 · kind B2 · utility

Assignee

• RAYTHEON TECHNOLOGIES CORPORATION · US

Inventors

• Richard Wesley Jackson · Mystic, US
• John E. Holowczak · South Windsor, US
• Xia Tang · Town of West Hartford, US
• James T. Beals · Town of West Hartford, US

Key dates

• Filing date: Aug 3, 2018
• Grant date: Jun 6, 2023
• Expiry date: Apr 7, 2042

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F05D2300/611
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

An environmental barrier coating system for a turbine component, including an environmental barrier layer applied to a turbine component substrate containing silicon; the environmental barrier layer comprising an oxide matrix surrounding a fiber-reinforcement structure and a self-healing phase interspersed throughout the oxide matrix; wherein the fiber-reinforcement structure comprises at least one first fiber bundle oriented along a load bearing stress direction of said turbine component substrate; wherein the fiber-reinforcement structure comprises at least one second fiber bundle oriented orthogonal to the at least one first fiber bundle orientation; wherein the fiber-reinforcement structure comprises at least one third fiber woven between the at least one first fiber bundle and the at least one second fiber bundle.