Fused grains of magnesium-rich magnesium aluminate

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United States of America Patent

PATENT NO 9845266
SERIAL NO

15126913

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Abstract

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A fused grain is essentially composed of a matrix of a magnesium aluminum oxide of spinel structure MgAl2O4 and/or of the MgO—MgAl2O4 eutectic, the matrix including inclusions essentially composed of magnesium oxide, the grain exhibiting the following overall chemical composition, as percentages by weight, expressed in the form of oxides: more than 20.0% and less than 50.0% of Al2O3, Al2O3 and MgO together represent more than 95.0% of the weight of the grain, wherein the cumulative content of CaO and ZrO2 is less than 4000 ppm by weight.

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Patent Owner(s)

Patent OwnerAddress
SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN92400 COURBEVOIE

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Raffy, Stéphane Cavaillon, FR 10 10

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