| abstract |
A ceramic honeycomb structure having an inlet surface and an outlet surface and suitable for a particulate filter, the plurality of inlet cells and the plurality of outlet cells extending from the inlet surface to the outlet surface through the ceramic honeycomb structure A ceramic honeycomb structure having an inlet cell open at the inlet face and closed at the outlet face, and the outlet cell open at the outlet face and closed at the inlet face . The inlet cells and outlet cells are square in cross section and are arranged in an alternating pattern, the outlet cells having a cross-sectional area substantially smaller than the cross-sectional area of the inlet cells and an internal angle of less than 90 °; For a given inlet cell, there is no inlet cell location that is located closer to the adjacent inlet cell than the adjacent outlet cell. A method of preparing a ceramic honeycomb structure is also disclosed. |