摘要:
A method of making SiC nanowires comprising: (a) mixing silicon powder with a carbon-containing biopolymer and a catalyst at room temperature to form a mixture; and (b) heating said mixture to a pyrolyzing temperature sufficient to react said biopolymer and said silicon power to form SiC nanowires.
摘要:
The porous body satisfies at least one of the following three conditions; “the average value of multiple in-plane uniformity indices γx is 0.6 or greater, and the spatial uniformity index γ is 0.6 or greater”, “the percentage of the total value of volume of low-flow-velocity curved surface solids as to the total value of volume of multiple virtual curved surface solids is 20% or less, and the percentage of the total value of volume of high-flow-velocity curved surface solids as to the total value of volume of multiple virtual curved surface solids is 10% or less”, and “the percentage of the total value of volume of mid-diameter curved surface solids as to the total value of volume of multiple virtual curved surface solids is 60% or more”.
摘要:
A honeycomb structure 100 having a partition wall 112 that forms a plurality of first channels 110a and a plurality of second channels 110b is provided. The first channels 110a are open at a first end surface 100a and closed at a second end surface 100b. The second channels 110 are closed at the first end surface 100a and open at the second end surface 100b. The partition wall 112 has standard walls 112a, which separate the first channels 110a and the second channels 110b from each other, and a common wall 112b, which separates two first channels 110a adjacent to each other at the first end surface 100a, and the standard walls 112a are thicker than the common walls 112b.
摘要:
A particle filter includes channels that are formed by porous walls and run between a first end face and a second end face of the particle filter. The first end face has a hydrolysis coating outside the channels. A device includes at least one exhaust gas line through which an exhaust gas can flow in a flow direction, a nozzle for introducing a reducing agent containing or forming ammonia, and the aforementioned particle filter. The first end face of the particle filter is oriented towards the nozzle. A motor vehicle having the particle filter or the device, is also provided.
摘要:
There is provided a honeycomb filter including a honeycomb base material including a porous partition wall parent material; plugged portions arranged in open frontal areas of predetermined cells in an end surface on an inflow side of the fluid, and open frontal areas of the remaining cells in an end surface on an outflow side of the fluid; and a porous collecting layer disposed on the surface of the partition wall parent material in the remaining cells. In a cross section orthogonal to an extending direction of the cells, a shape of the cells is a rectangular shape, and a thickness of a portion of the collecting layer which is positioned in each of corner portions of each of the cells is from one to three times that of a portion of the collecting layer which is positioned in the center of each of sides of the cell.
摘要:
Described herein is a substrate including a central longitudinal axis, a first support web, and a second support web. A sinuous web may be positioned between the first support web and the second support web. The sinuous web may include transverse web portions and bridging web portions, where the bridging web portions alternatively connect ends of adjacent transverse web portions. The sinuous web may be connected to the first support web by support legs extending between bridging web portions and a surface of the first support web. The sinuous web may be connected to the second support web by support legs extending between bridging web portions and a surface of the second support web. A support leg length to distance between transverse web portions ratio may be from about 1.0 to about 4.0.
摘要:
A method for producing a ceramic honeycomb filter by immersing an end surface of a ceramic honeycomb structure having a lot of flow paths partitioned by cell walls in a plugging material slurry in a container to introduce the plugging material slurry into the predetermined flow paths to form plugs, and taking the ceramic honeycomb structure provided with the plugs out of the container horizontally.
摘要:
A particulate filter may comprise an inlet end, an outlet end, and a plurality of parallel channels disposed and configured to flow fluid from the inlet end to the outlet end, the channels being defined by a plurality of porous walls configured to trap particulate matter. The particulate filter may define at least one filtration region including a first group of channels and at least one bypass region including a second group of channels, wherein at least some of the channels in the first group of channels are plugged at an end thereof, wherein the channels in the second group of channels are unplugged, and wherein greater than or equal to about 70% of the plurality of parallel channels are plugged at an end thereof.
摘要:
A method for assembling a metal honeycomb catalyzer carrier includes the steps of winding corrugated belt plate materials into a substantially cylindrical shape, forming a wound structure into a predetermined cylindrical shape with a die 101 and pushing out a wound honeycomb body 12 obtained through the forming from the die and inserting the wound honeycomb body 12 into the interior of a tubular member 13. An assembling apparatus 31 includes a winding unit 42 which includes, in turn, a rotational holding shaft 167 and a press roller unit 38, a die unit 39 for forming a wound structure wound round the rotational holding shaft 167 into a wound honeycomb body 12 of a predetermined cylindrical shape (of an outside diameter Dp), a tube support unit 132 for setting a tubular member 13 at an edge of a die surface 126, and a honeycomb push-out and insertion unit 34 for pushing out a formed structure from a die 101 and inserting the formed structure so pushed out into the tubular member 13.
摘要:
A honeycomb structured body of the present invention is a honeycomb structured body in which plural pillar-shaped honeycomb units are bonded to one another through sealing material layers, each unit having in the longitudinal direction a large number of cells placed in parallel with a cell wall therebetween. Herein, a cross-sectional area of the honeycomb unit on a cross-section perpendicular to the length direction is at least about 5 cm2 and at most about 50 cm2, the honeycomb unit includes inorganic fibers and/or whiskers in addition to inorganic particles, and a Young's modulus of the honeycomb unit is at least about 50% and at most about 150% of a Young's modulus of the sealing material layer.