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Silicon carbide ceramic honeycomb structure and its production method
A silicon carbide ceramic honeycomb structure having large numbers of axially penetrating flow paths partitioned by porous silicon carbide cell walls and being formed by integrally bonding honeycomb segments by binder layers, the cell walls having porosity of 40-50% and a median pore diameter of 8-18 μm, an average pore width W determined by averaging the lengths (pore widths) of all measured pore portions being 10-25 μm, the number N of pores per length determined by dividing the total number of the measured pores by the total length of the straight lines used for measurement being 20-40/mm, and the volume of pores having pore diameters of 20 μm or more being 10-20% of the total pore volume in the cell walls and the volume of pores having pore diameters of 9 μm or less being 3-25% of the total pore volume in the cell walls, measured by mercury porosimetry.
Silicon carbide ceramic honeycomb structure and its production method
A silicon carbide ceramic honeycomb structure having large numbers of axially penetrating flow paths partitioned by porous silicon carbide cell walls and being formed by integrally bonding honeycomb segments by binder layers, the cell walls having porosity of 40-50% and a median pore diameter of 8-18 μm, an average pore width W determined by averaging the lengths (pore widths) of all measured pore portions being 10-25 μm, the number N of pores per length determined by dividing the total number of the measured pores by the total length of the straight lines used for measurement being 20-40/mm, and the volume of pores having pore diameters of 20 μm or more being 10-20% of the total pore volume in the cell walls and the volume of pores having pore diameters of 9 μm or less being 3-25% of the total pore volume in the cell walls, measured by mercury porosimetry.
Silicon carbide ceramic honeycomb structure and its production method
SHIMIZU KENICHIRO (author)
2025-01-07
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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