Process for preparing sintered body of aluminum titanate

Details Process for preparing sintered body of aluminum titanate Process for preparing sintered body of aluminum titanate

C - Chemistry, Metallurgy

04

B

25/143, 261/26

C04B 35/478 (2006.01)

Patent

CA 2325172

The present invention provides a process for preparing a raw material powder for producing a sintered body of aluminum titanate comprising: pulverizing a mixture containing: (1) 100 parts by weight of aluminum titanate crystals pulverized until a maximum grain size of 30 to 50 µm is attained; and (2) 2 to 6 parts by weight of spinel crystals obtained by heating a mixture containing MgO and Al2O3 at 1250°C to 1290°, a molar ratio of MgO to Al2Og being 1:0.95 to 1:1.05, said pulverizing being conducted by wet grinding process with a ball mill or cylinder mill.

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