ALUMINA CERAMIC SINTERED COMPACT HAVING EXCELLENT CORROSION RESISTANCE

PROBLEM TO BE SOLVED: To obtain an alumina sintered compact having excellent corrosion resistance (etching resistance) to both plasma irradiations with a fluorine base and a chlorine base. SOLUTION: This alumina ceramic sintered compact has >=99 wt.% alumina (Al2O3) content, 20-200 ppm Mg content...

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Bibliographic Details
Main Author YOSHITOMI YASUKI
Format Patent
LanguageEnglish
Published 12.09.2000
Edition7
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Summary:PROBLEM TO BE SOLVED: To obtain an alumina sintered compact having excellent corrosion resistance (etching resistance) to both plasma irradiations with a fluorine base and a chlorine base. SOLUTION: This alumina ceramic sintered compact has >=99 wt.% alumina (Al2O3) content, 20-200 ppm Mg content, by weight, and >=3.97 g/cm3 bulk density. Preferably, the content of metal components except Al and Mg is <=20 ppm as a single component and <=100 ppm per the total of the components. The ceramic may be a part of a portion to be subjected to plasma irradiation.
Bibliography:Application Number: JP19990057565