Patent Number: 8,715,807

Title: Fused grains of oxides comprising Al, Ti and Mg and ceramic products comprising such grains

Abstract: A mixture of fused grains mainly comprising or composed of an oxide phase of pseudo-brookite type and comprising titanium, aluminum and magnesium, the fused grains having the following chemical composition, in weight percentages on the basis of the oxides: less than 55% of Al.sub.2O.sub.3; more than 30% and less than 70% of TiO.sub.2; more than 1% and less than 15% of MgO, the fused grains also corresponding to the following composition, in molar percentages and on the basis of the single oxides Al.sub.2O.sub.3, TiO.sub.2, MgO: 180.ltoreq.3t+a.ltoreq.220, a.ltoreq.50, m=100-a-t, in which: a is the molar percentage of Al.sub.2O.sub.3; t is the molar percentage of TiO.sub.2; m is the molar percentage of MgO. A ceramic product obtained from such fused grains.

Inventors: Boussant-Roux; Yves (Montfavet, FR), Cabodi; Isabelle (Cavaillon, FR), Marlin; Samuel (Plan d'Orgon, FR)

Assignee: Saint-Gobain Centre de Recherches et d'Etudes Europeen

International Classification: C04B 35/478 (20060101); C04B 35/622 (20060101); C04B 35/653 (20060101); C04B 35/626 (20060101)

Expiration Date: 5/06/12018