Outer periphery coating material, outer periphery coated honeycomb structure and dust collecting filter
AssigneeNGK Insulators, Ltd.
InventorsMasaki Houra, Shungo Nagai
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Abstract
An outer periphery coating material being coated onto an outer peripheral surface of a ceramic honeycomb structure to form an outer periphery coated layer. The outer periphery coating material comprises: a particle mixture containing cordierite particles and amorphous silica particles in a mass ratio of from 40:60 to 80:20; and from 10 to 30% by mass of crystalline inorganic fibers in an outer percentage relative to the particle mixture. An average particle diameter of the cordierite particles is different from an average particle diameter of the amorphous silica particles.
Claims9
An outer periphery coating material, the outer periphery coating material being coated onto an outer peripheral surface of a ceramic honeycomb structure to form an outer periphery coated layer,
- wherein the outer periphery coating material comprises:
- a particle mixture containing cordierite particles and amorphous silica particles in a mass ratio of from 40:60 to 80:20;
- and from 10 to 30% by mass of crystalline inorganic fibers in an outer percentage relative to the particle mixture, and
- wherein an average particle diameter of the cordierite particles is different from an average particle diameter of the amorphous silica particles.
Dependencies are inferred from the claim text.