A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
This ceramic honeycomb filter comprises: a cordierite ceramic honeycomb structure having a number of flow paths divided by porous partition walls; and a plug portion formed at a predetermined flow path end of the ceramic honeycomb structure. The partition walls in a flow path direction has a thermal expansion coefficient Tw (× 10-7/°C) of less than or equal to 10 at 40 to 800°C. The plug portion includes at least ceramics particles and 5 to 25 parts by mass of an amorphous oxide matrix with respect to 100 parts by mass of the ceramics particles. The ceramics particles include at least 42 to 90 mass% of amorphous silica particles and 10 to 58 mass% of cordierite particles. The amorphous silica particles include 4 to 30 mass% of first silica particles having a median particle diameter of 10 to 40 µm, and 70 to 96 mass% of second silica particles having a median particle diameter of 70 to 200 µm.
This ceramic honeycomb filter comprises: a cordierite ceramic honeycomb structure having a number of flow paths divided by porous partition walls; and a plug portion formed at a predetermined flow path end of the ceramic honeycomb structure. The partition walls in a flow path direction has a thermal expansion coefficient Tw (× 10-7/°C) of less than or equal to 10 at 40 to 800°C. The plug portion includes at least ceramics particles and 5 to 25 parts by mass of an amorphous oxide matrix with respect to 100 parts by mass of the ceramics particles. The ceramics particles include at least 42 to 90 mass% of amorphous silica particles and 10 to 58 mass% of cordierite particles. The amorphous silica particles include 4 to 30 mass% of first silica particles having a median particle diameter of 10 to 40 µm, and 70 to 96 mass% of second silica particles having a median particle diameter of 70 to 200 µm.
CERAMIC HONEYCOMB FILTER
KERAMIKWABENFILTER
FILTRE EN NID D'ABEILLES EN CÉRAMIQUE
SOGA WATARU (author)
2022-08-03
Patent
Electronic Resource
English