A method for the joining of ceramic pieces with a hermetically sealed joint comprising brazing a continuous layer of joining material between the two pieces. The wetting and flow of the joining material is controlled by the selection of the joining material, the joining temperature, the time at temperature, the joining atmosphere, and other factors. The ceramic pieces may be aluminum nitride and the pieces may be brazed with an aluminum alloy under controlled atmosphere. The joint material is adapted to later withstand both the environments within a process chamber during substrate processing, and the oxygenated atmosphere which may be seen within the shaft of a heater or electrostatic chuck.

A method for the joining of ceramic pieces with a hermetically sealed joint comprising brazing a continuous layer of joining material between the two pieces. The wetting and flow of the joining material is controlled by the selection of the joining material, the joining temperature, the time at temperature, the joining atmosphere, and other factors. The ceramic pieces may be aluminum nitride and the pieces may be brazed with an aluminum alloy under controlled atmosphere. The joint material is adapted to later withstand both the environments within a process chamber during substrate processing, and the oxygenated atmosphere which may be seen within the shaft of a heater or electrostatic chuck.

The invention relates to a coloured zirconia ceramic dental mill blank having fluorescing properties, processes of production such a mill blank and uses thereof, in particular for producing zirconia ceramic dental restorations. The dental mill blank having a shape allowing the dental mill blank to be attached or fixed to a machining device, the dental mill blank comprising a porous zirconia material, the porous zirconia material comprising the oxides Zr oxide calculated as Zr02: from about 80 to about 97 wt.-%, Al oxide calculated as Al203: from about 0 to about 0.15 wt.-%, Y oxide calculated as Y203: from about 1 to about 10 wt-%, Bi oxide calculated as Bi203: from about 0.01 to about 0.20 wt-%, Tb oxide calculated as Tb203: from about 0.01 to about 0.8 wt.-%, and optionally one or two of the following oxides: Er oxide calculated as Er203: from about 0.01 to about 3.0 wt.-%, Mn oxide calculated as Mn02: from about 0.0001 to about 0.08 wt.-%, the porous zirconia material not comprising Fe oxide calculated as Fe203 in an amount of more than about 0.01 wt.-%, wt.-% with respect to the weight of the porous zirconia material.

The invention provides a ceramic material or glass material and a manufacturing method thereof. The manufacturing method includes the following steps: preparing a precursor of a ceramic material or a glass material; processing the precursor using a high-energy beam to obtain a processed precursor; and converting the processed precursor into a ceramic material or a glass material. The ceramic material or glass material provided by the present invention is manufactured by this manufacturing method. The present invention uses additive manufacturing technology such as 2D/3D/4D printing combined with subtractive manufacturing technology to manufacture ceramic components or glass components in 3C products. The ceramic material or glass material of the present invention has high resolution and complex shape.

A method may produce a ceramic part with a mother-of-pearl effect, in particular for watchmaking. Such methods may include: forming a ceramic body; depositing a layer of an oxy-nitride component of the OxNy type on at least a portion of the ceramic body; and oxidizing at least a portion of the oxy-nitride layer, preferably by heating.

The present invention relates to a ceramic ball having a detergent function and a method for manufacturing a ceramic ball, which can improve washing capacity since the ceramic ball is molded such that the surface area coming into contact with water gets wider, and can improve production efficiency and reduce the manufacturing cost since it is possible to manufacture ceramic balls continuously and automatically.

The invention relates to a method for heating a sheet steel blank or preformed component with a zinc or zinc alloy coating, wherein the sheet steel component or blank is guided or positioned in a furnace and heated to a temperature above the austenitizing temperature, the sheet steel component or blank at least temporarily rests on a plurality of support surfaces on at least one carrier in which, on the support surfaces for the sheet steel blank or component, either a) the support surfaces are each a maximum of 200 mm.sup.2 in size, and/or b) the support surfaces consist of a porous and/or rough oxide ceramic or carbide ceramic or high-temperature resistant cast steel so that oxygen access to the surface of the steel sheet blank or component is ensured even in the region of the support surface

An apparatus for carrying out the method is also provided.

A method for providing endwall contouring in the manufacture of a ceramic matrix composite airfoil endwall for a gas turbine engine includes forming a ceramic insert having a contoured surface defining a desired endwall contouring, draping a first fiber ply over the contoured surface of the ceramic insert, and densifying the assembled ceramic insert and first fiber ply. The first fiber ply conforms to a shape of the contoured surface.

The invention refers to an insulating lining, a use of an alumina-based part, a reactor for hydrocarbon reforming and a process for hydrocarbon reforming.

An electrolyte sheet for solid oxide fuel cells includes a ceramic plate body containing a cubic zirconia sintered material, wherein, with the ceramic plate body being defined to have nine portions including an outer peripheral portion and a central portion, ceramic grains in each of the nine portions have a median size D.sub.50 of 1.0 m to 4.0 m, and a maximum median size D.sub.50 of the ceramic grains among the nine portions is 1.0 to 1.3 times a minimum median size D.sub.50 of the ceramic grains among the nine portions.