PILLAR-SHAPED HONEYCOMB STRUCTURE AND METHOD FOR MANUFACTURING SAME
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United States of America Patent
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Issued Date -
Oct 3, 2024
app pub date -
Mar 7, 2024
filing date -
Mar 30, 2023
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Abstract
A pillar-shaped honeycomb structure, comprising an outer peripheral side wall; first cells having an opening on the first end surface and having a sealing portion on the second end surface; and second cells adjacent to the first cells with partition walls interposed therebetween and having a sealing portion on the first end surface and having an opening on the second end surface; wherein the outer peripheral side wall, the partition walls, and the sealing portions are fired, and comprise cordierite as a main component and one or more sintering aids selected from ceria, zirconia, and titania; wherein in the partition walls, assuming an average porosity of a portion in a range A, and a portion in a range B is P1 (%); and assuming an average porosity of a portion in a range C is P2 (%), −4≤P1−P2≤7 is satisfied.
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