Process for preparing sintered body of aluminum titanate
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United States of America Patent
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Jun 11, 2002
Grant Date -
N/A
app pub date -
Nov 6, 2000
filing date -
Nov 8, 1999
priority date (Note) -
Expired
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Abstract
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 .mu.m is attained; and (2) 2 to 6 parts by weight of spinel crystals obtained by heating a mixture containing MgO and Al.sub.2 O.sub.3 at 1250.degree. C. to 1290.degree. a molar ratio of MgO to Al.sub.2 O.sub.3 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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