Ceramic-body-forming batch materials comprising silica, methods using the same and ceramic bodies made therefrom
AssigneeCorning Incorporated
InventorsDaniel Edward McCauley, Anthony Nicholas Rodbourn, Patrick David Tepesch, Christopher John Warren
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Abstract
The disclosure relates to ceramic-body-forming batch materials comprising at least one pore former and inorganic batch components comprising at least one silica source having a specified particle size distribution, methods of making ceramic bodies using the same, and ceramic bodies made in accordance with said methods. The disclosure additionally relates to methods for reducing pore size variability in ceramic bodies and/or reducing process variability in making ceramic bodies.
Claims4
A method for reducing pore size variability in ceramic bodies and/or reducing process variability in making ceramic bodies, the method comprising:
- selecting as inorganic batch components for use in making the ceramic bodies:
- (a) at least one silica source having a particle size distribution with an sDbreadth of about 2 or less, and a median particle size (sd50) ranging from about 5 μm to 250 μm;
- and
- (b) at least one source chosen from alumina sources, titania sources, magnesium sources, strontium sources, or calcium sources;
- wherein the median particle size (sd50) of the silica source varies by about ±4 μm or less;
- wherein the at least one silica source has an sd10 that varies by about ±0.5 μm or less;
- and
- wherein the at least one silica source has an sd90 that varies by about ±10 μm or less.
Dependencies are inferred from the claim text.