CERAMIC FILTER AND METHODS FOR MANUFACTURING AND USING SAME
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United States of America Patent
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Issued Date -
Mar 6, 2014
app pub date -
Sep 3, 2013
filing date -
Sep 4, 2012
priority date (Note) -
Abandoned
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Abstract
A process for manufacturing a ceramic filter includes mixing silicon, yttrium oxide-doped zirconia, magnesium-aluminum spinel, silicon nitride, a pore-forming material, and a binder to form a ceramic precursor; extruding the ceramic precursor into a generally honeycomb shaped monolithic filter precursor or into a single filter tube precursor; drying the filter precursor or filter tube precursor to form a dried ceramic precursor; heating the dried ceramic precursor to remove the binder; and sintering to form the silicon nitride ceramic filter.
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