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AssigneeNGK Insulators, Ltd.
InventorsTakafumi KIMATA, Kenichi HIDAKA, Yoshio KIKUCHI, Masaki ISHIKAWA, Kisuke YAMAMOTO, Kenji MORIMOTO
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A ceramic formed body extrusion method for forming a ceramic formed body having a wall-shaped or plate-shaped formed portion by using an extrusion die provided with a slit for extrusion of a ceramic formed body from a raw material for forming, the slit including a slit former stage unit located on an upstream side in an extrusion direction in the extrusion and a slit latter stage unit located on a downstream side in the extrusion direction, the slit latter stage unit having a width of three to 27 times a width of the slit former stage unit, and by extruding a raw material containing a first particle having an aspect ratio of two or more and less than 300 such that the raw material passes though the slit former stage unit of the extrusion die and then passes through the slit latter stage unit.
A ceramic formed body extrusion method for forming a ceramic formed body having a wall-shaped or plate-shaped formed portion,
A ceramic formed body with a wall-shaped or plate-shaped formed portion, comprising a first particle having an aspect ratio of two or more and less than 300, wherein in a dry state, among three regions obtained by equally dividing a cut surface obtained by cutting the formed portion in a thickness direction thereof into three parts in the thickness direction of the formed portion, the orientation degree of the first particle in a region located in the center in the thickness direction of the formed portion is from 0 to 53°.
A ceramic porous body comprising partition walls having a plurality of pores for defining a plurality of cells, wherein
Dependencies are inferred from the claim text.