A graphite article which can be compressed by more three (3%) percent at a contact pressure of 100 KPa or less without damaging the graphite article reducing the thermal impedance exhibited by the article. Also a graphite article comprising graphitized polymer having a thickness of at least 75 microns. Preferably the graphite has a density of less than 1.50 g/cc and a compressibility of more than 3% at a contact pressure of 100 KPa. Also the article has a generally sheet like shape. These articles may be used in a thermal management system to dissipate heat from a heat source.

A process for preparing a coating utilized for thermal and environmental barrier coating on a substrate is disclosed. The process comprises preparing a starter oxycarbide composition; and preloading a metal material in said starter oxycarbide composition.

A method of preparing cerium boride powder, according to the present invention, includes a first step for generating mixed powder by mixing at least one selected from among cerium chloride (CeCl.sub.3) powder and cerium oxide (CeO.sub.2) powder, at least one selected from among magnesium hydride (MgH.sub.2) powder and magnesium (Mg) powder, and boron oxide (B.sub.2O.sub.3) powder, a second step for generating composite powder including cerium boride (Ce.sub.xB.sub.y) and at least one selected from among magnesium oxide (MgO) and magnesium chloride (MgCl.sub.2), by causing reaction in the mixed powder at room temperature based on a ball milling process, and a third step for selectively depositing cerium boride powder by dispersing the composite powder in a solution.

A thermoelectric conversion material formed of a sintered body containing magnesium silicide as a main component contains 0.5 mass % or more and 10 mass % or less of aluminum oxide. The aluminum oxide is distributed at a crystal grain boundary of the magnesium silicide.

A polysilocarb effect pigments, uncoated and coated, that exhibit among other things optical properties such as interference, shine, shimmer and sparkle. Pastes and coating including these polysilocarb effect pigments. Polysilocarb pigments having magnetite and exhibiting magnetic properties.

Disclosed is a refractory product for casting of steel, which is capable of forming a dense surface layer which is high in terms of a slag infiltration suppressing ability and strong, in a surface region thereof efficiently or sufficiently or in an optimum state. The refractory product contains 1 mass % or more of free carbon, and 2 mass % to 15 mass % of an aluminum component as metal, with the remainder comprising a refractory material as a main composition, wherein the refractory product has a permeability of 110.sup.16m.sup.2 to 1510.sup.16m.sup.2.

Methods for repairing a thermal barrier coating deposited on a component with localized spallation of the thermal barrier coating includes depositing a primer slurry on a thermally grown oxide of the component exposed by the localized spallation, depositing a ceramic slurry on the primer slurry, and heating the primer slurry and the ceramic slurry. The primer slurry includes a primer that includes at least one of a metal and a metal oxide. The ceramic slurry includes a ceramic material, a ceramic slurry binder material, and a ceramic slurry fluid carrier. Heating the primer slurry and the ceramic slurry forms a first chemical bond between the primer and the thermally grown oxide and a second chemical bond between the primer and the ceramic material.

A multilayer ceramic electronic component includes: a ceramic body including a dielectric layer having a main component represented by (Ba.sub.1-xCa.sub.x)(Ti.sub.1-y(Zr, Sn, Hf).sub.y)O.sub.3 (where, 0x1, 0y0.5), and having a plurality of grains and grain boundaries disposed between the plurality of grains, and including first and second internal electrodes alternately stacked with the dielectric layer interposed therebetween; a first external electrode; and a second external electrode, wherein the dielectric layer includes a triple point in contact with three grain boundaries and a secondary phase of Si disposed inside the triple point, wherein a dispersion of an Si content at an interface between the dielectric layer and the internal electrode may be 1% by weight or less.

A porous honeycomb heat storage structure including: a honeycomb structure which has a porous partition wall which defines a plurality of cells extending one end face to the other end face and allows a reaction medium to flow into the cells; and a heat storage portion which is configured by filling a heat storage material performing heat storage and heat dissipation by a reversible chemical reaction with the reaction medium or physical adsorption/desorption in at least a portion of each cells, wherein the heat storage portion has an area ratio in a range from 60% to 90% with respect to a cross sectional area of a honeycomb cross section orthogonal to an axial direction of the honeycomb structure.

A method for manufacturing a magnesium-based thermoelectric conversion material of the present invention includes a raw material-forming step of forming a raw material for sintering by adding silicon oxide in an amount within a range equal to or greater than 0.5 mol % and equal to or smaller than 13.0 mol % to a magnesium-based compound, and a sintering step of heating the raw material for sintering at a temperature within a range equal to or higher than 750 C. and equal to or lower than 950 C. while applying pressure equal to or higher than 10 MPa to the raw material for sintering so as to form a sintered substance.