Abstract: Engine exhaust gas treatment article comprising a contoured honeycomb body (300) including a contoured outlet end face (316) are disclosed. Also disclosed are methods of manufacturing an engine exhaust gas treatment article.

Abstract: A particulate filter having a porous ceramic honeycomb structure with a first end, a second end, and a plurality of walls having wall surfaces defining a plurality of inner channels. Filtration material deposits are disposed on one or more of the wall surfaces of the honeycomb body. The highly porous deposits provide durable high clean filtration efficiency with small impact on pressure drop through the filter.

Abstract: A particulate filter having a porous ceramic honeycomb structure with a first end, a second end, and a plurality of walls having wall surfaces defining a plurality of inner channels. Filtration material deposits are disposed on one or more of the wall surfaces of the honeycomb body. The highly porous deposits provide durable high clean filtration efficiency with small impact on pressure drop through the filter.

Abstract: Engine exhaust gas treatment article comprising a contoured honeycomb body (300) including a contoured outlet end face (316) are disclosed. Also disclosed are methods of manufacturing an engine exhaust gas treatment article.

Abstract: A particulate filter having a porous ceramic honeycomb structure with a first end, a second end, and a plurality of walls having wall surfaces defining a plurality of inner channels. Filtration material deposits are disposed on one or more of the wall surfaces of the honeycomb body. The highly porous deposits provide durable high clean filtration efficiency with small impact on pressure drop through the filter.

Abstract: A honeycomb body having a porous ceramic honeycomb structure with a first end, a second end, and a plurality of walls having wall surfaces defining a plurality of inner channels. A highly porous layer is disposed on one or more of the wall surfaces of the honeycomb body. The highly porous layer has a porosity greater than 90%, and has an average thickness of greater than or equal to 0.5 ?m and less than or equal to 10 ?m. A method of making a honeycomb body includes depositing a layer precursor on a ceramic honeycomb body and binding the layer precursor to the ceramic honeycomb body to form the highly porous layer.

Abstract: A honeycomb body having a porous ceramic honeycomb structure with a first end, a second end, and a plurality of walls having wall surfaces defining a plurality of inner channels. A highly porous layer is disposed on one or more of the wall surfaces of the honeycomb body. The highly porous layer has a porosity greater than 90%, and has an average thickness of greater than or equal to 0.5 ?m and less than or equal to 10 ?m. A method of making a honeycomb body includes depositing a layer precursor on a ceramic honeycomb body and binding the layer precursor to the ceramic honeycomb body to form the highly porous layer.

Abstract: A compound honeycomb body comprising a first honeycomb section having a volume V1 and a second honeycomb section fluidly connected to the first honeycomb having a volume V2 is provided. The first honeycomb section comprises a low mass high porosity porous ceramic substrate. The second honeycomb section comprises a standard porous ceramic substrate. Wherein V1/V2 comprises a ratio in a range from about 50/50 to about 10/90.

Abstract: A compound honeycomb body comprising a first honeycomb section having a volume V1 and a second honeycomb section fluidly connected to the first honeycomb having a volume V2 is provided. The first honeycomb section comprises a low mass high porosity porous ceramic substrate. The second honeycomb section comprises a standard porous ceramic substrate. Wherein V1/V2 comprises a ratio in a range from about 50/50 to about 10/90.

Abstract: A method of treating a particulate filter includes introducing a work fluid, such as water, into one or more channels of the filter and then removing the work fluid in a vaporized state. The channels contain an amount of ash and the density of the ash is greater subsequent to the removal of the work fluid than prior to the introduction of the work fluid.

Abstract: A method of manufacturing a particulate filter includes plugging at least some of the channels of a green cellular ceramic body on a first end with a green plugging material that includes a liquid vehicle to form a partially plugged green cellular ceramic body, firing the partially plugged green cellular ceramic body to form a partially plugged ceramic article, and plugging at least some of the channels on a second end of the partially plugged ceramic article with a plugging material that sets at a temperature of less than 1000° C.

Abstract: Disclosed herein are formed ceramic substrates comprising an oxide ceramic material, wherein the formed ceramic substrate comprises a low elemental alkali metal content, such as less than about 1000 ppm. Also disclosed are composite bodies comprising at least one catalyst and a formed ceramic substrate comprising an oxide ceramic material, wherein the composite body has a low elemental alkali metal content, such as less than about 1000 ppm, and methods for preparing the same.

Abstract: Disclosed herein are formed ceramic substrates comprising an oxide ceramic material, wherein the formed ceramic substrate comprises a low elemental alkali metal content, such as less than about 1000 ppm. Also disclosed are composite bodies comprising at least one catalyst and a formed ceramic substrate comprising an oxide ceramic material, wherein the composite body has a low elemental alkali metal content, such as less than about 1000 ppm, and methods for preparing the same.

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.

Abstract: A porous ceramic honeycomb article comprising a honeycomb body formed from cordierite ceramic, wherein the honeycomb body has a porosity P %?55% and a cell channel density CD?150 cpsi. The porous channel walls have a wall thickness T, wherein (11+(300?CD)*0.03)?T?(8+(300?CD)*0.02), a median pore size ?20 microns, and a pore size distribution with a d-factor of ?0.35. The honeycomb body has a specific pore volume of VP?0.22. The porous ceramic honeycomb article exhibits a coated pressure drop increase of ?8 kPa at a flow rate of 26.5 cubic feet per minute when coated with 100 g/L of a washcoat catalyst and loaded with 5 g/L of soot.

Abstract: A porous ceramic honeycomb article comprising a honeycomb body formed from cordierite ceramic, wherein the honeycomb body has a porosity P %?55% and a cell channel density CD?150 cpsi. The porous channel walls have a wall thickness T, wherein (11+(300?CD)*0.03)?T?(8+(300?CD)*0.02), a median pore size?20 microns, and a pore size distribution with a d-factor of ?0.35. The honeycomb body has a specific pore volume of VP?0.22. The porous ceramic honeycomb article exhibits a coated pressure drop increase of ?8 kPa at a flow rate of 26.5 cubic feet per minute when coated with 100 g/L of a washcoat catalyst and loaded with 5 g/L of soot.

Abstract: A porous ceramic honeycomb article comprising a honeycomb body formed from cordierite ceramic, wherein the honeycomb body has a porosity P %?55% and a cell channel density CD ?150 cpsi. The porous channel walls have a wall thickness T, wherein (11+(300?CD)*0.03)?T?(8+(300?CD)*0.02), a median pore size ?20 microns, and a pore size distribution with a d-factor of ?0.35. The honeycomb body has a specific pore volume of VP?0.22. The porous ceramic honeycomb article exhibits a coated pressure drop increase of ?8 kPa at a flow rate of 26.5 cubic feet per minute when coated with 100 g/L of a washcoat catalyst and loaded with 5 g/L of soot.

Abstract: Particulate filters for reducing NOx and particulate matter in diesel exhaust and methods for forming the same are disclosed. In one embodiment, a particulate filter may include a honeycomb body with a plurality of channel walls extending from an inlet end to an outlet end. At least a first set of the channels are plugged proximate at least one of the inlet end or the outlet end. A filter zone may extend from the inlet end in an axial direction of the particulate filter. A DeNOx zone may be located downstream of the filter zone. The channel walls of the particulate filter may include a DeNOx functional catalyst in the DeNOx zone and a ratio of the permeability ?fz of the channel walls in the filter zone to the permeability ?Dz of the channel walls in the DeNOx zone (?fz:?Dz) is at least 2.

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.

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.