An article comprising a silicon based substrate

Ceramic article is prepared by providing substrate having silicon; heating the silicon-containing substrate to a temperature (T) of >=1100[deg]C; applying barrier layer having barium strontium aluminosilicate to the silicon-containing substrate at the temperature T, to provide a coated substrate;...

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Bibliographische Detailangaben
Hauptverfasser:	EATON, HARRY E, LAWTON, THOMAS H
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ARTIFICIAL STONE BLASTING CEMENTS CERAMICS CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE DIFFUSION TREATMENT OF METALLIC MATERIAL ENGINE PLANTS IN GENERAL HEATING INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM LIGHTING LIME, MAGNESIA MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METALLURGY NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES PERFORMING OPERATIONS PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL REFRACTORIES SLAG SPRAYING OR ATOMISING IN GENERAL STEAM ENGINES SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING TREATMENT OF NATURAL STONE WEAPONS
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Beschreibung
Zusammenfassung:	Ceramic article is prepared by providing substrate having silicon; heating the silicon-containing substrate to a temperature (T) of >=1100[deg]C; applying barrier layer having barium strontium aluminosilicate to the silicon-containing substrate at the temperature T, to provide a coated substrate; holding the coated substrate at the temperature T for >=15 minutes; and cooling the coated substrate. An independent claim is also included for an article comprising a substrate having silicon, and crystalline barium-strontium aluminosilicate barrier layer.