The disclosure relates to sintered ceramic grains comprising 3-55 wt. % alumina, 40-95 wt. % zirconia and 1-30 wt. % of one or more other inorganic components. The invention further relates to a method for preparing ceramic grains according to the invention, comprising: making a slurry comprising alumina, zirconia; making droplets of the slurry; introducing the droplets in a liquid gelling-reaction medium wherein the droplets are gellified; drying the gellified deformed droplets.

The present invention relates to a compact container having a discharge plate made of ceramic, and more specifically, a compact container having a discharge plate made of ceramic, wherein, since the discharge plate is made of ceramic, the discharge plate is not to be worn out when a user spreads gel contents on the discharge plate and impregnates the puff with the gel contents. The ceramic which forms the discharge plate has high hardness and excellent heat resistance and wear resistance, thereby enabling long-time use. Cosmetic is allowed to exert antibacterial and antiseptic actions and heavy metal-removing and deodorizing functions when passing through the discharge plate. In addition, since the discharge plate is made of ceramic, the discharge plate is not bent and is lowered down with the entire part thereof balanced, even when the user presses the discharge plate for use of the cosmetic.

Provided according to embodiments of the invention are varistor ceramic formulations that include zinc oxide (ZnO). In particular, varistor ceramic formulations of the invention may include dopants including an alkali metal compound, an alkaline earth compound, an oxide of boron, an oxide of aluminum, or a combination thereof. Varistor ceramic formulations may also include other metal oxides. Also provided according to embodiments of the invention are varistor ceramic materials formed by sintering a varistor ceramic formulation according to an embodiment of the invention. Further provided are varistors formed from such ceramic materials and methods of making such materials.

A garnet-type ion-conducting oxide configured to inhibit lithium carbonate formation on the surface of crystal particles thereof, and a method for producing an oxide electrolyte sintered body using the garnet-type ion-conducting oxide. The garnet-type ion-conducting oxide represented by a general formula (Li.sub.x-3y-z, E.sub.y, H.sub.z)L.sub.αM.sub.βO.sub.γ (where E is at least one kind of element selected from the group consisting of Al, Ga, Fe and Si; L is at least one kind of element selected from an alkaline-earth metal and a lanthanoid element: M is at least one kind of element selected from a transition element which be six-coordinated with oxygen and typical elements in groups 12 to 15 of the periodic table; 3≤x−3y−z≤; 0≤y≤0.22; C≤z≤2.8; 2.5≤α≤3.5; 1.5≤≈≤2.5; and 11≤γ≤13), wherein a half-width of a diffraction peak which has a highest intensity and which is observed at a diffraction angle (2θ) in a range of from 29° to 32° as a result of X-ray diffraction measurement using CuKα radiation, is 0.164° or less.

A sintered electroconductive oxide having a perovskite oxide type crystal structure represented by a compositional formula: M1.sub.aM2.sub.bMn.sub.cAl.sub.dCr.sub.eO.sub.f wherein M1 represents at least one element selected from group 3 elements; and M2 represents at least one element selected from among Mg, Ca, Sr and Ba, wherein element M1 predominantly includes at least one element selected from Nd, Pr and Sm, and a, b, c, d, e and f satisfy the following relationships: 0.6005≦a<1.000, 0<b≦0.400, 0≦c<0.150, 0.400≦d<0.950, 0.050<e≦0.600, 0.50<e/(c+e)≦1.00, and 2.80≦f≦3.30. Also disclosed is a thermistor element including a thermistor portion which is formed of the sintered electroconductive oxide as well as a temperature sensor employing the thermistor element.

The present invention(s) is directed to novel conductive M.sub.n+1X.sub.n(T.sub.s) compositions exhibiting high volumetric capacitances, and methods of making the same. The present invention(s) is also directed to novel conductive M.sub.n+1X.sub.n(T.sub.s) compositions, methods of preparing transparent conductors using these materials, and products derived from these methods.

A dielectric film containing an alkaline earth metal oxide having a NaCl type crystal structure as a main component, wherein the dielectric film has a (111)-oriented columnar structure in a direction perpendicular to the surface of the dielectric film, and in a Cu—Kα X-ray diffraction chart of the dielectric film, a half width of the diffraction peak of (111) is in a range of from 0.3° to 2.0°.

A method of treating a preceramic material includes providing a preceramic polycarbosilane or polycarbosiloxane material that includes a moiety Si—O-M, where Si is silicon, O is oxygen and M is at least one metal that includes at least one transition metal, and thermally converting the preceramic polycarbosilane or polycarbosiloxane that includes the moiety Si—O-M material into a ceramic material.

The present disclosure relates to an orthophosphate thermal barrier coating material with high coefficient of thermal expansion and a preparation method thereof. ReM.sub.3P.sub.3O.sub.12 series ceramics with an eulytite crystal structure are prepared by a high-temperature solid-phase reaction for the first time. The ReM.sub.3P.sub.3O.sub.12 ceramic belongs to a −43 m space group of a cubic crystal system, which not only has a higher melting point and excellent high-temperature phase stability, but also has a lower thermal conductivity and a suitable coefficient of thermal expansion. It can effectively alleviate the stress caused by the mismatch of the coefficient of thermal expansion of the base material and the ceramic layer, so as to meet the requirements of thermal insulation and high-temperature oxidation and corrosion resistance of the hot end parts in long-term service, which has application prospects in the field of thermal barrier coatings.

Components having an environmental barrier coating and a sintered layer overlying the environmental barrier coating, the sintered layer defining an outer surface having a lower surface roughness than the environmental barrier coating. The sintered layer is formed from a slurry applied to and then sintered on the environmental barrier coating. The sintered layer comprises a primary material, at least one sintering aid dissolved in the primary material, and optionally a secondary material. The sintering aid contains at least one doping composition. The primary material is a rare earth disilicate or a rare earth monosilicate and is doped with the doping composition so as to be either a doped rare earth disilicate or a doped rare earth monosilicate. The optional secondary material is a reaction product of the primary material and any of the sintering aid not dissolved in the primary material.