Rare-earth oxide based erosion resistant coatings for semiconductor application

An article includes a body that is coated with a ceramic coating. The ceramic coating may include Y2O3 in a range between about 45 mol % to about 99 mol %, ZrO2 in a range between about 1 mol % to about 55 mol %, and Al2O3 in a range between about 1 mol % to about 10 mol %. The ceramic coating may a...

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Bibliographische Detailangaben
Hauptverfasser:	Sun, Jennifer, Kanungo, Biraja P, Cho, Tom
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE BASIC ELECTRIC ELEMENTS 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 ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRICITY 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 LIME, MAGNESIA METALLURGY PERFORMING OPERATIONS REFRACTORIES SLAG SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	An article includes a body that is coated with a ceramic coating. The ceramic coating may include Y2O3 in a range between about 45 mol % to about 99 mol %, ZrO2 in a range between about 1 mol % to about 55 mol %, and Al2O3 in a range between about 1 mol % to about 10 mol %. The ceramic coating may alternatively include Y2O3 in a range between about 45 mol % to about 99 mol % and Al2O3 in a range between about 1 mol % to about 10 mol %. The ceramic coating may alternatively include Y2O3 in a range between about 45 mol % to about 99 mol % and ZrO2 in a range between about 1 mol % to about 55 mol %.