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Keramiknetzwerk, Verfahren zu dessen Herstellung und Verwendung

Ceramic network used as e.g. filter, catalyst support.
: Adler, J.; Heymer, H.; Standke, G.

Frontpage ()

DE 1997-19753249 A: 19971201
DE 1997-19753249 A: 19971201
EP 1998-966248 A: 19981130
EP 1044179 B1: 20030212
DE 19753249 B4: 20050224
Patent, Elektronische Publikation
Fraunhofer IKTS ()

NOVELTY - A ceramic network, consisting of a two or three dimensional structure of interconnected ceramic ribs defining cavities with a (roughly) circular or (multiple) convex contour, is new. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for production of the above ceramic network by forming a fiber network from polymeric, natural and/or other fibers having a cross-section with a (roughly) circular or (multiple) convex periphery, infiltrating with a ceramic suspension, removing excess suspension, drying, removing or burning away the fiber network and sintering. Preferred Features: The fiber network is produced from the fibers by, adhesive bonding, welding, braiding, felting, weaving, knitting, sewing or stamping of individual fibers and/or fiber bundles. The fibers consist of polyester, polyethylene, polyamide, cotton, cellulose, cocoa fibers, jute, hemp, flax or horse hair. The fiber network is removed by etching, dissolution, bacteriological action or combustion. USE - For use in contact with liquids and/or gases, particularly for passage of or filling with liquids and/or gases or for filling with solidified melts, as a filter (especially a metal melt filter, submerged filter or filtration support body), as a heat exchanger or regenerator, as a catalyst support or reaction chamber packing element, as a burner element, as a thermostatic heating or regulating element, for supporting mechanical loads, as a sound-proofing element, as a stiffening element for light structural elements, as a mirror support or heat shield tile, as a ceramic reinforcing material for metal matrix composites (MMCs) or light metal alloy MMCs, as a brake material, as a grinding body or as a support for grinding media (claimed). ADVANTAGE - The network has uniform cell wall thickness, can be produced with cells of large size, has high mechanical strength since it is free from cracks and has a structure which can be tailored according to its use.