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US 2013/0256958 A1Published application
Cellular ceramic articles with coated channels and methods for making the same
AssigneeCorning Incorporated
InventorsThorsten Rolf Boger, Willard Ashton Cutler, Kenneth Joseph Drury, Todd Parrish St Clair, Patrick David Tepesch, John Forrest Wight, JR.
Life of this patent
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Abstract
Cellular ceramic articles are manufactured from a green cellular ceramic body that includes a binder material and a plurality of channels. At least one of the channels is coated with a slurry that includes a green coating composition and a solvent to form a coating layer. The binder material is insoluble in the solvent.
Claims10
A method of manufacturing a cellular ceramic article comprising:
- providing a green cellular ceramic body comprising a binder material and a plurality of channels;
- and
- coating at least one of the plurality of channels that is intended to be plugged as an inlet channel with a slurry comprising a green coating composition and a solvent to form a coating layer on at least one of the plurality of channels that is intended to be plugged as an inlet channel;
- wherein the binder material is insoluble in the solvent and the at least one of the plurality of channels is unplugged when coated with the slurry;
- and
- wherein, subsequent to a firing step, the average pore diameter of pores in the coating layer is at least 5% smaller than the average pore diameter of pores in a wall on the channel on which it is coated.
3 more elements
Dependencies are inferred from the claim text.