METHOD OF FORMING A PROTECTIVE COATING ON A SURFACE OF A CERAMIC SUBSTRATE
A method for forming a protective coating on a surface of a ceramic substrate includes combining a rare-earth oxide, alumina, and silica to form a powder, etching the surface of the ceramic substrate, applying the powder on the etched surface in an amount of from about 0.001 to about 0.1 g/cm2to red...
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| creator | WHALEN, Terence OBOODI, Reza JADIDIAN, Bahram |
| description | A method for forming a protective coating on a surface of a ceramic substrate includes combining a rare-earth oxide, alumina, and silica to form a powder, etching the surface of the ceramic substrate, applying the powder on the etched surface in an amount of from about 0.001 to about 0.1 g/cm2to reduce capture of bubbles from off-gassing of the ceramic substrate, heating the powder for a time of from about 5 to about 60 minutes to a temperature at or above the melting point such that the powder melts and forms a molten coating on the surface that has a minimized number of bubbles, and cooling the molten coating to ambient temperature to form the protective coating disposed on and in direct contact with the surface of the ceramic substrate such that the protective coating has a thickness of less than about 1 mil. |
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| language | eng ; fre ; ger |
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| subjects | ARTIFICIAL STONE BLASTING CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE ENGINE PLANTS IN GENERAL HEATING LIGHTING LIME, MAGNESIA MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METALLURGY NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES REFRACTORIES SLAG STEAM ENGINES TREATMENT OF NATURAL STONE WEAPONS |
| title | METHOD OF FORMING A PROTECTIVE COATING ON A SURFACE OF A CERAMIC SUBSTRATE |
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