18157483. CERAMIC COMPONENT HAVING SILICON LAYER AND BARRIER LAYER simplified abstract (Raytheon Technologies Corporation)

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CERAMIC COMPONENT HAVING SILICON LAYER AND BARRIER LAYER

Organization Name

Raytheon Technologies Corporation

Inventor(s)

Robert A. White, Iii of Meriden CT (US)

Brian T. Hazel of Avon CT (US)

Zhongfen Ding of South Windsor CT (US)

CERAMIC COMPONENT HAVING SILICON LAYER AND BARRIER LAYER - A simplified explanation of the abstract

This abstract first appeared for US patent application 18157483 titled 'CERAMIC COMPONENT HAVING SILICON LAYER AND BARRIER LAYER

Simplified Explanation: The patent application describes a seal system for a ceramic component with a coating system that includes a silicon-containing layer and a barrier layer to limit interaction between the ceramic and metallic components.

Key Features and Innovation:

  • Ceramic component with surface roughness
  • Coating system with silicon-containing layer and barrier layer
  • Barrier layer reduces interaction between silicon and metallic components
  • Barrier layer has similar thermal expansion coefficient to ceramic component

Potential Applications: The technology can be used in gas turbine engines and other high-temperature applications where sealing between ceramic and metallic components is crucial.

Problems Solved: The technology addresses issues of interaction between ceramic and metallic components, which can lead to degradation and failure in high-temperature environments.

Benefits:

  • Improved sealing performance
  • Enhanced durability and reliability in high-temperature conditions
  • Reduced maintenance and downtime for gas turbine engines

Commercial Applications: The technology can be applied in aerospace, power generation, and industrial sectors for sealing components in high-temperature environments, leading to improved efficiency and performance.

Questions about Seal System: 1. How does the barrier layer prevent interaction between silicon and metallic components? 2. What are the specific advantages of using a coating system with a silicon-containing layer in high-temperature applications?

Frequently Updated Research: Ongoing research may focus on optimizing the composition and thickness of the barrier layer for improved performance and longevity in various industrial applications.


Original Abstract Submitted

A seal system a ceramic component having a surface region defining a first surface roughness, a metallic component situated adjacent the surface region, and a coating system disposed on the surface region. The coating system includes a silicon-containing layer on the surface region and a barrier layer on the silicon-containing layer. The silicon-containing layer has a surface in contact with the barrier layer. The barrier layer has a surface in contact with the metallic component. The surface of the barrier layer has a second surface roughness that is less than the first surface roughness. The barrier layer limits interaction between silicon of the silicon-containing layer and elements of the metallic component. The barrier layer has a coefficient of thermal expansion that is within about 60% of a coefficient of thermal expansion of the ceramic component. A gas turbine engine and a method are also disclosed.

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