Ngk Insulators, Inc.

Ryuta Kono

Yasushi Noguchi

Yoshiro Ono

Yukio Miyairi

Shuichi Ichikawa

Suguru Kodama

Rui Horimoto

Koji Fukuyo

Narimasa Shinoda

Tasuku Matsumoto

A filter including a plurality of pillar-shaped honeycomb structure segments made of porous ceramics, side faces of the segments being bonded together via a bonding material, wherein each of the pillar-shaped honeycomb structure segments includes an outer peripheral side wall, and partition walls partitioning a plurality of cells extending from a first end face to a second end face, and in each of the pillar-shaped honeycomb structure segments, an average porosity of the outer peripheral side wall is lower than that of the partition walls.

Filter and method for manufacturing same

There is provided a method for manufacturing a ceramic honeycomb structure comprising: a coating material adjustment step for obtaining a coating material by mixing at least water with a ceramic powder aggregate having only one peak in a particle size distribution, an average particle size of 23 to 39 &#x3bc;m, and a particle size distribution width of 15 to 33, a coating material application step for applying the coating material to cover the outer periphery of a honeycomb structure having a plurality of cells separated by porous ceramic partition walls, and a coating material heat-drying step for forming an outer wall by heat-drying the coating material after the coating material application step. By the method, the outer periphery is covered with a coating material to form an outer wall to hardly generate, for example, crack generation and peeling upon drying the outer wall, and the coating material is provided.

Method for manufacturing ceramic honeycomb structure and coating material for the ceramic honeycomb structure

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Nagoya, Japan

Ryuta Kono