Vacuum Infiltration of Porous Ceramic Coatings on Substrates

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This invention describes a method for treating porous ceramic protective coatings that are applied to a substrate. The method involves exposing the substrate with the ceramic coating to a vacuum and ensuring that an infiltration-capable medium fills the pores of the ceramic layer. This can be accomplished by either immersing the coated substrate in the medium under vacuum or by applying the medium under vacuum conditions so that it penetrates the pores of the coating.

Use CasesContent extracted from patent full text and abstract with AI.

• Enhancing the durability of ceramic protective coatings on turbine engine components
• Improving thermal barrier coatings used in aerospace or power generation industries
• Sealing electronic or mechanical components with porous ceramic coatings for improved protection
• Extending the lifetime of components in corrosive or high-temperature environments by improving coating density and impermeability

BenefitsContent extracted from patent full text and abstract with AI.

• Increases the resistance of ceramic coatings to environmental degradation
• Improves the overall protective properties of coatings by reducing porosity
• Enhances the performance and longevity of coated components
• Can be applied to various industrial fields including energy, aviation, and manufacturing

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Patent Abstract

The invention relates to a method for treating porous ceramic protective layers applied to a substrate (1), wherein according to the invention the substrate (1) coated with a ceramic protective layer (2) having pores (3) is either immersed in an infiltration-capable medium and infiltration of the medium into the pores (3) of the ceramic protective layer (2) takes place in the immersed state under vacuum, or is exposed to a vacuum and under vacuum is continuously or discontinuously wetted completely or partially with an infiltration-capable medium and infiltration of the medium (5) into the pores (3) of the ceramic protective layer (2) takes place in the areas wetted with the medium (5).