公开(公告)号：US20240034685A1

公开(公告)日：2024-02-01

申请号：US18037677

申请日：2022-03-23

申请人： PROTERIAL, LTD.

发明人： Kenichiro SHIMIZU

IPC分类号： C04B35/565 ,  C04B35/63 ,  C04B38/00

CPC分类号： C04B35/565 ,  C04B35/6303 ,  C04B38/0009 ,  C04B38/0054 ,  C04B38/0074 ,  C04B2235/3826 ,  C04B2235/6021 ,  C04B2235/606

摘要： A silicon carbide ceramic honeycomb structure having large numbers of axially penetrating flow paths partitioned by porous silicon carbide cell walls, the cell walls having porosity of 35-50% and a median pore diameter of 8-18 μm, when a straight line C is drawn in parallel with the cell wall surface such that it passes a center in the direction of the thickness T of the cell wall, and straight lines are drawn in parallel with the straight line C such that they are separate from the straight line C by ±T/5 and ±2T/5 in the thickness direction of the cell wall, to measure the lengths (pore widths) of pore portions crossing each straight line, and the number of pores crossing each straight line, in a cell wall cross section perpendicular to the axial direction, an average pore width W determined by averaging the lengths (pore widths) of all measured pore portions being 10-25 μm, and 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.

公开(公告)号：US20240262755A1

公开(公告)日：2024-08-08

申请号：US18640593

申请日：2024-04-19

申请人： PROTERIAL, LTD.

发明人： Kenichiro SHIMIZU

IPC分类号： C04B35/565 ,  C04B35/63 ,  C04B38/00

CPC分类号： C04B35/565 ,  C04B35/6303 ,  C04B38/0009 ,  C04B38/0054 ,  C04B38/0074 ,  C04B2235/3826 ,  C04B2235/6021 ,  C04B2235/606

摘要： A silicon carbide ceramic honeycomb structure having large numbers of axially penetrating flow paths partitioned by porous silicon carbide cell walls, the cell walls having porosity of 35-50% and a median pore diameter of 8-18 μm, when a straight line C is drawn in parallel with the cell wall surface such that it passes a center in the direction of the thickness T of the cell wall, and straight lines are drawn in parallel with the straight line C such that they are separate from the straight line C by ±T/5 and ±2T/5 in the thickness direction of the cell wall, to measure the lengths (pore widths) of pore portions crossing each straight line, and the number of pores crossing each straight line, in a cell wall cross section perpendicular to the axial direction, an average pore width W determined by averaging the lengths (pore widths) of all measured pore portions being 10-25 μm, and 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.