| abstract |
The present invention provides a kind of honeycomb structure and its manufacturing method, is removed from next door even if can effectively inhibit catalyst if when supporting coefficient of thermal expansion higher catalyst.Honeycomb structure (100) has columnar honeycomb-structure portion (4), there is the honeycomb-structure portion (4) next door (1) for dividing and forming multiple cells (2), multiple cell (2) to become the flow path of fluid and extend to second end face (12) from first end face (11)；Next door (1) is made of porous body, which has aggregate and to form the bond material that aggregate is bonded to each other by the state of pore between aggregate, and aggregate contains fused silica particle, and bond material contains glass；SiO in porous body 2 Content ratio be 70 mass % or more, and 40~800 DEG C of coefficient of thermal expansion of the porous body is 1.5~6.0 × 10 ‑6 /℃。 |