The present disclosure provides an aerogel composition which is durable and easy to handle, which has favorable performance in aqueous environments, and which also has favorable combustion and self-heating properties. Also provided is a method of preparing an aerogel composition which is durable and easy to handle, which has favorable performance in aqueous environments, and which has favorable combustion and self-heating properties. Further provided is a method of improving the hydrophobicity, the liquid water uptake, the heat of combustion, or the onset of thermal decomposition temperature of an aerogel composition.

The present disclosure provides an aerogel composition which is durable and easy to handle, which has favorable performance in aqueous environments, and which also has favorable combustion and self-heating properties. Also provided is a method of preparing an aerogel composition which is durable and easy to handle, which has favorable performance in aqueous environments, and which has favorable combustion and self-heating properties. Further provided is a method of improving the hydrophobicity, the liquid water uptake, the heat of combustion, or the onset of thermal decomposition temperature of an aerogel composition.

A batch composition containing pre-reacted inorganic spheroidal particles and pore-former spheroidal particles. The pre-reacted inorganic spheroidal particles have a particle size distribution wherein 10 μm≤DI.sub.50≤50 μm, and DIb≤2.0, and the pore-former spheroidal particles have a particle size distribution wherein 0.40 DI.sub.50≤DP.sub.50≤0.90 DI.sub.50, and DPb≤1.32, wherein DI.sub.50 is a median particle diameter of the distribution of pre-reacted inorganic spheroidal particles, DP.sub.50 is a median particle diameter of the pore-former particle size distribution, DIb is a breadth factor of the pre-reacted particle size distribution of the pre-reacted inorganic spheroidal particles, and DPb is a breadth factor of the pore-former particle size distribution. Also, green honeycomb bodies manufactured from the batch compositions, and methods of manufacturing a honeycomb body using the batch compositions, are provided.

The honeycomb filter of the present invention includes a honeycomb fired body that includes multiple cells serving as channels of exhaust gas; and porous cell partition walls defining the cells, the cells including exhaust gas introduction cells whose ends on an exhaust gas inlet side are open and whose ends on an exhaust gas outlet side are plugged, and exhaust gas emission cells whose ends on the exhaust gas outlet side are open and whose ends on the exhaust gas inlet side are plugged, wherein the honeycomb fired body contains ceria-zirconia composite oxide particles and alumina particles, when the pore size of the cell partition walls of the honeycomb fired body is measured by mercury porosimetry, and the measurement results are presented as a pore size distribution curve with pore size (μm) on the horizontal axis and log differential pore volume (mL/g) on the vertical axis, the volume of micropores having a pore size of 1 to 100 μm accounts for 80 vol % or more of the total pore volume, and a value obtained by dividing the half width (μm) of the maximum peak in the pore size range of 1 to 100 μm by the mode size (μm) is 0.5 or less.

Provided are a composite ceramic member and a method for preparation thereof, a vaporization assembly, and an electronic cigarette. The composite ceramic member comprises a first ceramic layer, a second ceramic layer, and a third ceramic layer stacked in sequence; in the first ceramic layer, the second ceramic layer, and the third ceramic layer, the first ceramic layer has the smallest pore size and the highest thermal conductivity, the second ceramic layer has the largest porosity, and the third ceramic layer has the highest compressive strength.

Provided are a composite ceramic member and a method for preparation thereof, a vaporization assembly, and an electronic cigarette. The composite ceramic member comprises a first ceramic layer, a second ceramic layer, and a third ceramic layer stacked in sequence; in the first ceramic layer, the second ceramic layer, and the third ceramic layer, the first ceramic layer has the smallest pore size and the highest thermal conductivity, the second ceramic layer has the largest porosity, and the third ceramic layer has the highest compressive strength.

A method of making an ceramic article according to an exemplary embodiment of this disclosure, among other possible things includes arranging fiber plies into a preform, inserting one or more sacrificial springs to the preform, infiltrating the preform with a matrix material to form an article, and thermally degrading the one or more sacrificial springs to form cooling holes. A ceramic article and a gas turbine engine component are also disclosed.

A method of making an ceramic article according to an exemplary embodiment of this disclosure, among other possible things includes arranging fiber plies into a preform, inserting one or more sacrificial springs to the preform, infiltrating the preform with a matrix material to form an article, and thermally degrading the one or more sacrificial springs to form cooling holes. A ceramic article and a gas turbine engine component are also disclosed.

A method of producing a ceramic core for investment casting is provided. The method includes injecting a slurry into a disposable die. The slurry includes ceramic particles, a binder, and carbon fibers. The method also includes a first heating to eliminate the disposable die, leaving a cured ceramic core including the ceramic particles, binder, and carbon fibers.

Porous ceramics that meet the demand for bone substitute materials and the like are provided. Solution is provided by porous ceramics and a method for producing the porous ceramics, which are ceramics having pores, the pores including open pores and closed pores, the open pores including a plurality of large-diameter open pores having a pore size within a range of 20 to 600 μm and a plurality of micro-diameter open pores having a pore size within a range of 1.0 μm or smaller, wherein the large-diameter open pores are distributed substantially uniformly all over the ceramics.