Method for fabricating a layer with absorbing particles for an energy radiation
First Claim
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1. A method for producing a layer on a substrate, comprising:
- applying a first coating material, including first absorber particles that absorb a first electromagnetic energy radiation, providing only a first portion of a volume of the layer;
applying at least one second coating material on the first coating material, providing a second portion of the volume of the layer and containinga solvent or dispersion medium,chemical precursors of a ceramic, andsecond absorber particles that permit propagation of the first electromagnetic energy radiation, absorb a second electromagnetic energy radiation, different from the first electromagnetic energy radiation, and differ from the first absorber particles with respect to at least one of chemical composition and a mixing ratio of different types of component absorber particles; and
heat treating the substrate after application of the first and at least one second coating materials, whereby the solvent or dispersion medium is evaporated and the chemical precursors are converted into the ceramic so as to form the layer, including input of the first and second electromagnetic energy radiation which are respectively converted into heat by the first and second absorber particles, the first electromagnetic energy radiation able to penetrate the layer only to a first maximum penetration depth within the first portion, and the second electromagnetic energy radiation able to penetrate the layer only to a second maximum penetration depth within the second portion.
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Abstract
A ceramic layer is fabricated on a substrate by coating the substrate with a material containing chemical precursors of a ceramic. The precursors are transformed by a heat treatment into the ceramic to be fabricated. Different methods for heat insertion may be used for individual layers by absorbing particles, which are utilized in different concentrations or different chemical compositions. A targeted heat insertion even in lower layer regions, for example, by microwave animation, or ultraviolet or infrared light insertion is therefore possible. Beneficially, as a result, comparatively thick layers in particular can be fabricated by a single heat treatment layer.
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14 Claims
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1. A method for producing a layer on a substrate, comprising:
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applying a first coating material, including first absorber particles that absorb a first electromagnetic energy radiation, providing only a first portion of a volume of the layer; applying at least one second coating material on the first coating material, providing a second portion of the volume of the layer and containing a solvent or dispersion medium, chemical precursors of a ceramic, and second absorber particles that permit propagation of the first electromagnetic energy radiation, absorb a second electromagnetic energy radiation, different from the first electromagnetic energy radiation, and differ from the first absorber particles with respect to at least one of chemical composition and a mixing ratio of different types of component absorber particles; and heat treating the substrate after application of the first and at least one second coating materials, whereby the solvent or dispersion medium is evaporated and the chemical precursors are converted into the ceramic so as to form the layer, including input of the first and second electromagnetic energy radiation which are respectively converted into heat by the first and second absorber particles, the first electromagnetic energy radiation able to penetrate the layer only to a first maximum penetration depth within the first portion, and the second electromagnetic energy radiation able to penetrate the layer only to a second maximum penetration depth within the second portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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