Fiber-Coated Prepregs for Making Ceramic Matrix Composites

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This patent describes a method for producing semi-finished products made from fiber-reinforced ceramics, monolithic ceramics, refractory metals, or pyrolyzable plastics intended for further manufacturing into ceramic matrix composites. The process involves coating reinforcement fibers with a specially formulated resin blend, followed by a peroxide-initiated cross-linking reaction and subsequent thermal treatment in an oxygen-free environment.

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

• Manufacturing of fiber-reinforced ceramic components for aerospace applications
• Production of heat-resistant ceramic matrix composites for automotive or industrial uses
• Preparation of robust ceramic parts for electronics or defense industries
• Development of advanced refractory components for energy or chemical processing
• Creation of preforms for high-performance sports equipment or medical devices

BenefitsContent extracted from patent full text and abstract with AI.

• Improved strength and durability of the resulting ceramic matrix composites
• Enhanced thermal and chemical resistance due to optimized fiber-resin interaction
• Allows for the production of complex and high-performance ceramic components
• Reduces manufacturing defects and improves the quality of final products
• Facilitates scalable and efficient production processes for advanced materials

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Patent Abstract

The subject matter of the present invention is a method for producing semi-finished products from fiber-reinforced ceramic, monolithic ceramic, refractory metal or from a plastic decomposable by pyrolysis for further processing into ceramic matrix composites, in which reinforcing fibers are present as fiber bundles or reinforcing fiber semi-finished products. The surfaces of the reinforcing fibers are coated with a base resin containing naphthol, resorcinol and phloroglucinol as well as various xylenols and with a dispersion mixture consisting of styrene and bisphenol A and enriched with an epoxide. This is followed by the use of a peroxide as an initiator of a cross-linking reaction of the components, which is followed by thermal treatment under exclusion of oxygen.