Sintered ceramic compact and ceramic filter
AssigneeIbiden Co., Ltd.
InventorsKazushige Ohno, Hiroki Sato
Life of this patent
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Abstract
The present invention provides for a ceramic sintered body and a ceramic filter having a long-term stability which can prevent cracks from occurring due to the breakage of ceramic particles when thermal stress is applied in regeneration process and the like, and can prevent catalyst carried from deteriorating when regeneration treatment is conducted repeatedly. The invention is a ceramic sintered body comprising ceramic coarse particles and porous bonding layers existing between the ceramic coarse particles to connect the particles and comprising ceramic fine particles having an average particle size smaller than that of the ceramic coarse particles and/or the aggregates thereof, and a ceramic filter prepared by using the ceramic sintered body.
Claims24
A ceramic sintered body comprising ceramic coarse particles and bonding layers existing between the ceramic coarse particles to connect the particles and including ceramic fine particles having a mean particle size smaller than that of the ceramic coarse particles.
A ceramic filter with a honeycomb structure comprising a pillar-shaped porous ceramic member or a combination of a plurality of the pillar-shaped porous ceramic members in which a plurality of cells as a gas passageway are arranged side by side in a longitudinal direction through cell walls and either one end portions of these cells are plugged, wherein the filter itself is formed by a ceramic sintered body comprising ceramic coarse particles and a bonding layer existing between the ceramic coarse particles to connect the particles and including ceramic fine particles having an average particle size smaller than that of the ceramic coarse particles.
Dependencies are inferred from the claim text.