| 摘要 |
<p>An object of the present invention is to provide a honeycomb structured body whose regeneration frequency is low. The honeycomb structured body of the present invention is a pillar-shaped honeycomb structured body including aluminum titanate containing ratios of 40 to 60% by mass of Al 2 O 3 , 30 to 50% by mass of TiO 2 , and 1 to 15% by mass of (MgO + SiO 2 ), and includes a large number of cells provided in parallel with one another in a longitudinal direction, and each of the cells is sealed at either one end. The honeycomb structured body has a porosity of 40% to 60% and an aperture ratio of 55% to 75%.</p> |
