Corning Incorporated
Compound honeycomb body, exhaust gas treatment article, exhaust system and methods of manufacturing same

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.