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Thermal barrier coating and preparation method thereof

A technology of thermal barrier coating and surface layer, which is applied in the direction of coating, metal material coating process, superimposed layer plating, etc., can solve the problems affecting the performance of the substrate, the easy diffusion of trace elements, etc., and achieve the effect of improving efficiency

Pending Publication Date: 2021-02-23
AECC COMML AIRCRAFT ENGINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, the traditional process usually has the problem that trace elements are easy to diffuse into the matrix and affect the performance of the matrix.

Method used

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  • Thermal barrier coating and preparation method thereof

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Embodiment Construction

[0029] A variety of different implementations or examples for implementing the described subject technical solutions are disclosed below. In order to simplify the disclosure, the following describes the specific examples of each component and arrangement, of course, these are only examples, not limiting the protection scope of the present invention. For example, the description that the first feature described later in the description is formed on or above the second feature may include an embodiment in which the first and second features are formed through direct contact, and may also include an embodiment in which the first and second features are formed between the first and second features. Embodiments of additional features such that there may be no direct relationship between the first and second features. Additionally, reference numerals and / or letters may be repeated in different instances in these disclosures. This repetition is for brevity and clarity and does not i...

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Abstract

The invention provides a thermal barrier coating and a preparation method thereof, which can improve the binding force of TGO and a bonding layer and improve the oxidation resistance of the bonding layer. The preparation method of the thermal barrier coating comprises the steps that the bonding layer is generated on the surface of a base body through chemical vapor deposition or physical vapor deposition; Zr and / or Hf elements are injected / deposited to the shallow surface of the bonding layer by using PIII&D to generate an in-situ modified layer; and a surface layer is generated on the in-situ modified layer.

Description

technical field [0001] The present invention relates to a thermal barrier coating and a preparation method thereof. Background technique [0002] In order to improve fuel economy and working thrust, the inlet temperature of aero-engine turbines has gradually increased, which has far exceeded the allowable use temperature of traditional nickel-based single crystal superalloys. Thermal barrier coating (thermal barrier coating, TBC) is widely used in high-temperature end components such as high-pressure turbine blades. Improve working efficiency, prolong its working life, and save the operating cost of aero-engines. [0003] The thermal barrier coating is usually composed of two parts: the outer layer in contact with the gas is called the top coat (TC), which is mainly a ceramic insulation material, and the common component is yttrium oxide (Y 2 o 3 ) Stabilized zirconium dioxide (ZrO 2 ) or rare earth oxides, whose function is heat insulation; the intermediate layer betwee...

Claims

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Application Information

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IPC IPC(8): C23C14/48C23C14/16C23C16/06C23C28/00
CPCC23C14/48C23C14/16C23C16/06C23C28/30
Inventor 陆涛钱凌翼
Owner AECC COMML AIRCRAFT ENGINE CO LTD
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