Method for producing a composite ceramic body

An intermediate member is formed as a semifinished product and includes at least two films or sheets of carbon containing material. Both sheets, such as prepegs, are initially in a still deformable state. One film or sheet is plane, the other is profiled and then the two are bonded to each other, br...

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Bibliographische Detailangaben
Hauptverfasser:	MERZ, HERBERT
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE BLASTING CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEAT EXCHANGE IN GENERAL HEATING JOINTS OR FITTINGS FOR PIPES LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM LIGHTING LIME, MAGNESIA MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING METALLURGY PERFORMING OPERATIONS PIPES REFRACTORIES SLAG SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL TRANSPORTING TREATMENT OF NATURAL STONE WEAPONS
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Beschreibung
Zusammenfassung:	An intermediate member is formed as a semifinished product and includes at least two films or sheets of carbon containing material. Both sheets, such as prepegs, are initially in a still deformable state. One film or sheet is plane, the other is profiled and then the two are bonded to each other, brought into the desired final form and cured. The final form is then heated while air is excluded for coking the carbon so that only a carbon skeleton remains. Such skeleton may be further reinforced by again impregnating the skeleton with a carbon containing resin and again coking. The carbonized or coked final form is enriched by metallic silicon, whereby the silicon precipitates by decomposition. Simultaneously with the enriching step or thereafter the final form is heat treated again to cause the formation of silicon carbide by the reaction C+SI->SiC.