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US 8,138,108 B2Granted
Aluminum titanate-containing ceramic-forming batch materials and methods using the same
AssigneeCorning Incorporated
InventorsPatrick David Tepesch, Christopher John Warren
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Abstract
The present disclosure relates to aluminum titanate-containing ceramic-forming batch materials and methods using the same.
Claims19
An aluminum titanate-containing ceramic-forming batch material comprising:
- (a) inorganic materials comprising particles from sources of alumina and titania, and
- (b) particles of at least one pore-forming material,
- wherein the ratio of the median particle diameter of at least 40 volume % of the inorganic materials (a) to the median particle diameter of the at least one pore-forming material (b) ranges from 0.3 to 1.0;
- wherein dbreadth for the at least 40 volume % of the inorganic materials (a) is less than 1.5;
- and
- wherein dbreadth of the at least one pore-forming material (b) is less than 2.
3 more elements
A method of making an aluminum titanate-containing ceramic body comprising:
- preparing batch material comprising:
- (a) inorganic materials comprising particles from sources of alumina and titania, and
- (b) particles of at least one pore-forming material,
- wherein the ratio of the median particle diameter of at least 40 volume % of the inorganic materials (a) to the median particle diameter of the at least one pore-forming material (b) ranges from 0.3 to 1.0;
- wherein dbreadth for the at least 40 volume % of the inorganic materials (a) is less than 1.5;
- and
- wherein dbreadth of the at least one pore-forming material (b) is less than 2;
- forming a green body from the batch material;
- and
- firing the green body to obtain an aluminum titanate-containing ceramic body.
7 more elements
A method for at least one of improving pore size distribution and controlling pore size of an aluminum titanate-containing ceramic body, said method comprising:
- preparing batch material comprising:
- (a) inorganic materials comprising particles from sources of alumina and titania, and
- (b) particles of at least one pore-forming material,
- wherein the ratio of the median particle diameter of at least 40 volume % of the inorganic materials (a) to the median particle diameter of the at least one pore-forming material (b) ranges from 0.3 to 1.0;
- wherein dbreadth for the at least 40 volume % of the inorganic materials (a) is less than 1.5;
- and
- wherein dbreadth of the at least one pore-forming material (b) is less than 2;
- forming a green body from the batch composition;
- and
- firing the green body to obtain an aluminum titanate-containing ceramic body.
7 more elements
Dependencies are inferred from the claim text.