Method for Producing a Multiple-Layer Metallic Composite Plate Using a Particle Suspension; Corresponding Composite Plate

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The invention describes a method for producing multi-layered metallic composite plates through the application of particles from a suspension onto the surfaces of metal sheets, followed by stacking and bonding by roll cladding. The particles can be metallic, ceramic, or hydrides, and their controlled distribution allows the creation of composite materials with enhanced or graded mechanical and/or functional properties. These composites can be further processed to introduce specific characteristics, such as increased strength, conductivity, or even the ability to become metal foam.

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• Manufacturing lightweight, high-strength structural components for automotive, aerospace, and transportation industries.
• Production of functionally graded materials for specialized wear-resistant or conductive surfaces.
• Creation of thermally and electrically conductive or insulated panels for electronics and energy applications.
• Fabrication of customized composites for civil engineering, such as bridge reinforcements or building panels.
• Production of metal foams for impact absorption, insulation, or lightweight cores in sandwich structures.
• Assemblies requiring localized mechanical or functional gradients, like crash zones in vehicles, or temperature-resistant structure parts.

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• Enables precise and scalable control over particle type, size, and distribution within the composite plate, allowing tailored and graded properties.
• Significantly improves mechanical properties such as strength, hardness, and ductility, with minimal increase in weight.
• Can enhance functional properties including thermal and electrical conductivity, or introduce new functionalities such as hydrogen storage.
• Compatible with standard industrial processes (roll cladding), and integrateable into existing production lines.
• Allows the use of a wide variety of metals and particle types for application-specific customization.
• Supports the formation of ultra-fine grained or even nanocrystalline structures, leading to superior material performance.

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Patent Abstract

The invention relates to a method for producing a multiple-layer metallic composite plate, comprising the following method steps: coating of a surface of a first part plate by application of particles, stacking of the first part plate with the coated surface onto a surface of a second part plate, connecting of the part plates by roll cladding with the inclusion of the applied particles to form a first composite plate, and optionally repetition of the above-mentioned steps using the first composite plate as a part plate to form a composite plate from a multiplicity of part plates. It is provided here to apply the particles from a suspension onto the surface of one or each part plate from a suspension. A method of this type makes the simple production of a composite plate possible with mechanical and/or functional properties which are improved in a targeted manner or material properties which are graded in a targeted manner. Furthermore, the invention comprises a composite plate which is produced by way of the above-mentioned method.