A honeycomb structure includes honeycomb segments each having a porous partition wall defining a plurality of cells, and includes a porous bonding layer containing a crystalline anisotropic ceramic and disposed so as to bond side surfaces of the honeycomb segments to each other. A ratio of a pore volume (cc/g) of a fine pore defined as a pore in the bonding layer having a pore diameter of 10 μm or more and less than 50 μm with respect to a pore volume (cc/g) of a coarse pore defined as a pore in the bonding layer having a pore diameter of 50 μm or more and 300 μm or less is from 2.0 to 3.5, the pore volume of the fine pore is from 0.15 to 0.4 cc/g, and the pore volume of the coarse pore is from 0.05 to 0.25 cc/g.

A porous ceramic honeycomb body (10) including intersecting walls that form channels (22) extending axially from a first end face to a second end face and layered plugs (62) comprised of a first layer (64) disposed on channel walls and a second layer (66) disposed inward toward an axial center of each respective channel on the first layer. The plugs seal at least one of a first portion of the channels at the first end face and a second portion of channels at the second end face of the porous ceramic honeycomb body.

The present invention is related to the development of a new formulation of electrical grade porcelain having improved mechanical and dielectric characteristics, and whose primary application is in electrical components, such as electric insulators.

This invention has as its main object to provide a new alternative to increase the final properties of an electrical grade porcelain, which is related to the incorporation of suitable concentrations of nanosized ceramic oxides, as part of the initial composition of porcelain paste.

This new nanotechnology alternative favors an increase in the final properties of electrical grade porcelain, such as flexural strength or cold rupture modulus, as well as dielectric strength, which is due to the incorporation of ceramic oxides such as alumina (α-Al.sub.2O.sub.3) and zirconia (ZrO.sub.2), in micrometer scale (i.e., less than 100 nanometers), favorably modify the microstructure of the base porcelain.

Mechanical strength, specifically the flexural strength at three points, of the porcelain compositions of the present invention is up to 38% greater than a silica based conventional porcelain composition. Furthermore, the insulating ability of the composition of this invention is up to 30% above the value of the reference siliceous porcelain.

Another important aspect of this invention is based on the concept that the ceramic nano-oxides of (α-Al.sub.2O.sub.3) and zirconia (ZrO.sub.2) strengthen the microstructure of siliceous porcelain, since the amount of crystalline phase increases and therefore the amorphous phase is reduced. Furthermore, the ceramic nano-oxides favor the increase in the concentration of the crystalline mullite phase (3Al.sub.2O.sub.3.2Si0.sub.2) in the microstructure, which is known to benefit the mechanical performance of triaxial porcelains.

An inorganic fiber containing silica, alumina, one or more alkali metal oxides, and one or more of alkaline earth metal oxides, transition metal oxides, or lanthanide series metal oxides. The inorganic fiber exhibits good thermal performance at use temperatures of 1260° C. and greater, retains mechanical integrity after exposure to the use temperatures, is free of crystalline silica upon devitrification, is alkali flux resistant, exhibits low bio-persistence in an acidic medium, and exhibits low dissolution in a neutral medium. Also provided are thermal insulation products incorporating the inorganic fibers, a method for preparing the inorganic fiber and a method of thermally insulating articles using thermal insulation prepared from the inorganic fibers.

A ceramic article formed from a plurality of materials, the ceramic article being characterized by the addition of glass fibers having a certain length, diameter and aspect ratio and a method for forming a ceramic article.

Method for manufacturing a composite material combining a metal oxide or metalloid based matrix suited for allowing light to pass, and a mineral pigment dispersed in the matrix, the method comprising a step of mixing the mineral pigment in powder form with the matrix in powder form, and a step of sintering of the mixture under sufficient pressure such that the densification temperature of the matrix under said pressure is below the breakdown temperature of the mineral pigment, where the sintering temperature is greater than or equal to the densification temperature of the matrix and below the breakdown temperature of the mineral pigment.

The disclosure discloses a method for preparing a multifunctional ecological exterior wall, including: preparing a ceramic board of a ceramic thermal insulation waterproof layer; preparing a ceramic sound-absorbing board of a sound-absorbing layer; and installing a ecological exterior wall: leveling a surface of the wall of a building with cement slurry, and applying a cement bonding layer thereon; laying the ceramic thermal insulation waterproof board on the cement bonding layer, and applying the cement bonding layer on the ceramic board; laying the ceramic sound-absorbing board on the cement bonding layer and reserving a gap used to place a pipe; driving the screw-thread steel bolt from the surface of the ceramic sound-absorbing board into the wall obliquely; installing and fixing the pipe in the gap, which is reserved at the upper of the ceramic sound-absorbing board; planting a green plant on the surface of the ceramic board of the sound-absorbing layer.

The present invention relates to a synthetic mineral composition. The present invention also relates to a method of forming a synthetic mineral composition. The present invention also relates to uses of a synthetic mineral composition.

The present invention relates to a ceramic paste composition comprising a matrix and water, wherein the matrix comprises, based on the total weight of the matrix: about 98 wt % to about 100 wt % of minerals of which at least 30 wt % are phyllosilicates and less than about 2 wt % organic additive; and wherein water is present from about 18 wt % to about 28 wt % based on the total weight of the ceramic paste composition. The present invention also relates to a method of forming a 3D structure using the ceramic paste composition of the invention.

The present invention provides a method for preparing mineral ore powder using vegetable organic matter and microorganisms. The method comprises a step of pulverizing seven minerals consisting of 20 wt % of zeolite, 20 wt % of hornblende, 10 wt % of elvan, 10 wt % of illite, 10 wt % of biotite, 20 wt % of tourmaline, and 10% of white clay into 325 mesh; a step of discharging impurities by heating the pulverized mineral powder at a temperature of 1,100° C. for a few days; a step of preparing a mineral ore powder by adding microorganisms and pulverized vegetable organic matter consisting of 30 wt % of mulberry bark, 25 wt % of pine needles, 20 wt % of cypress, 15 wt % of ginger plant, and 10 wt % of bush clover; and a step of drying the mineral ore powder at a temperature of 30° C. for 2 days to activate the microorganisms.