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US 9,429,054 B2Granted
Honeycomb structure
AssigneeNGK Insulators, Ltd.
InventorsShuichi Ichikawa, Keisuke Kimura, Taku Nishigaki
Life of this patent
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Abstract
In a honeycomb structure, a bonding material monolithically bonds a plurality of honeycomb segments. The bonding material contains crystalline anisotropic ceramic particle and a particulate pore former. The crystalline anisotropic ceramic particle is 20 mass % or less. An average particle diameter of the pore former in the bonding material is 80 to 200 μm. In the case where a compressive Young's modulus of the bonding material is assumed as E (unit: MPa) and a shear strength of the bonding material is assumed as σ (unit: kPa), σ/E is 5 to 50.
Claims12
A honeycomb structure, comprising
- a plurality of cells that are disposed parallel to one another in a central axis direction and are defined by a porous partition wall to make channels for a fluid,
- wherein the honeycomb structure includes:
- a plurality of honeycomb segments that each have a shape constituting a part of a whole structure, the honeycomb segments constituting the whole structure by being assembled in a direction perpendicular to the central axis, a bonding material that monolithically bonds the honeycomb segments, the bonding material containing crystalline anisotropic ceramic particles being 20 mass % or less and a particulate pore former whose average particle diameter in the bonding material being 80 to 200 μm, and σ/E being 5 to 50 in a case where a compressive Young's modulus of the bonding material is assumed as E, expressed in MPa, and a shear strength of the bonding material is assumed as σ, expressed in kPa.
Dependencies are inferred from the claim text.