Coating for metallic high temperature material, comprises heat-insulating layer, and oxidation protection layer and/or adhesion-mediator layer for insulating layer, where coating is disposed between insulating layer and repair layer

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This patent describes a special multi-layered coating for metallic materials used in high-temperature environments. The coating includes a heat-insulating layer, an oxidation protection and/or adhesion-mediating layer, and a repair layer with a unique material that melts and solidifies in response to temperature changes. If the insulating layer is damaged, the repair layer melts to fill the cracks and then solidifies again, providing a self-healing function to restore protection.

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

• Protective coatings for turbine blades in jet engines or power plants
• Self-healing layers in industrial furnaces or reactors
• Extend service life of metallic parts exposed to extreme heat
• Improve reliability in aerospace or automotive engine components
• Protection of metallic components in energy generation or chemical processing

BenefitsContent extracted from patent full text and abstract with AI.

• Prolongs the operational lifespan of high-temperature metallic parts
• Reduces maintenance costs by enabling self-repair of cracks or damage
• Improves safety and reliability by maintaining insulation and oxidation protection
• Reduces downtime due to less frequent need for manual repairs
• Enhances efficiency of systems using high-temperature metals by preserving material integrity

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Patent Abstract

The coating for a metallic high temperature material, comprises a heat-insulating layer (4), and an oxidation protection layer and/or an adhesion-mediator layer (2) for the insulating layer, where the coating is disposed between the insulating layer and a repair layer (3), which has a material with a melting temperature at which the material of the repair layer melts. The material of the repair layer comprises a component, whose portion is reduced in the material of the repair layer at the melting temperature, so that the material of the repair layer again solidifies. The coating for a metallic high temperature material, comprises a heat-insulating layer (4), and an oxidation protection layer and/or an adhesion-mediator layer (2) for the insulating layer, where the coating is disposed between the insulating layer and a repair layer (3), which has a material with a melting temperature at which the material of the repair layer melts. The material of the repair layer comprises a component, whose portion is reduced in the material of the repair layer at the melting temperature, so that the material of the repair layer again solidifies. The material of the repair layer is selected such that the melting temperature is adjusted for the intended use of the high temperature material, so that the melting temperature is not reached at the intact heat-insulating layer but the melting temperature is reached or exceeded when the defects in the insulating layer. The repair layer is a metal layer provided with a component influenced with the melting temperature and rapidly diffused at the melting temperature. The repair layer is oxidation protection layer and/or adhesion-mediator layer or a partial layer from the oxidation protection layer and/or adhesion-mediator layer modified with the component influenced with the melting temperature and rapidly diffused at the melting temperature. The repair layer is single-crystalline and/or solidifies in a single-crystalline manner. The repair layer is arranged at the edge of coating on the basic material side or between the oxidation protection layer or adhesion-mediator layer and the insulating layer. A platinum diffusion barrier layer is arranged at the basic material (1) and/or the oxidation protection layer or adhesion-mediator layer. An independent claim is included for a method for self-healing repair of cracks in high-temperature components with a heat-insulating layer.