A method for the joining of ceramic pieces with a hermetically sealed joint comprising brazing a 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 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 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 joining atmosphere, and other factors. The ceramic pieces may be on a non-diffusable type, such as aluminum nitride, alumina, beryllium oxide, and zirconia, 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.

This invention relates to a product and a method of preparing ceramic and/or ceramic hybrid materials through the construction of a printed die. The printed die being made by three dimensional printing or additive manufacturing processes possesses both an external geometry and an internal geometry.

An acetabular reamer of the type used in total hip arthroplasty (THA) to prepare a patient's acetabulum for implantation of a hip prosthesis is described. The acetabular reamer consists of a substantially hemispherical cup having a plurality of cutter-hole combinations aligned along one or more loxodromes on the surface of the hemispherical cup. The reamer, complete with integral back plate for connecting the reamer to a driver, is produced to net shape using a molding and sinterwelding technique.

The disclosure herein relates to a method for preparing ceramic grains comprising: making a slurry comprising inorganic particles and a gelling agent; making droplets of the slurry; introducing the droplets in a liquid gelling-reaction medium wherein the droplets are gellified; deforming the droplets before, during or after gellification; drying the gellified deformed droplets, thereby obtaining dried grains and sintering the dried grains, thereby obtaining the ceramic grains.

The disclosure herein further relates to ceramic grains obtainable by a disclosed method.

Method for producing ceramic components, more particularly ceramic components having recesses and/or hollow spaces, there being at least one sintered ceramic part present. In order to improve the handling qualities of ceramic components, the sintered ceramic part can include a carrier or carrying section which is removed in the further processing from at least one ceramic component.

This invention relates generally to an article that includes a non-wetting surface having a dynamic contact angle of at least about 90. The surface is patterned with macro-scale features configured to induce controlled asymmetry in a liquid film produced by impingement of a droplet onto the surface, thereby reducing time of contact between the droplet and the surface.

Components having coating systems that include mud cracks, methods for forming the coating systems, and vehicles including the components are provided. The components include a substrate having silicon nitride and a coating system on a surface of the substrate. The coating system includes a first layer of a first coating material on the substrate, wherein the first coating material includes a rare earth silicate and has a first thickness measured in a direction perpendicular to the surface of the substrate, and a second layer of a second coating material on the first layer, wherein the second coating material includes a rare earth silicate and has a second thickness that is greater than the first thickness. The second layer includes mud cracks that extend from an exterior surface thereof toward the substrate, and the mud cracks have widths in a range of about 50 to 200 micrometers.

Disclosed herein is a method including disposing in a mold a powder that has a composition for manufacturing a scintillator material and compressing the powder to form the scintillator material; where an exit surface of the scintillator material has a texture that comprises a plurality of projections that reduce total internal reflection at the exit surface and that increase the amount of photons exiting the exit surface by an amount of greater than or equal to 5% over a surface that does not have the projections.

A tool includes a flexible section; a head that extends form the flexible section; and an exciter within the head. A method of additively manufacturing a component including burrowing a tool into a conglomerated powder within an internal passage of an additively manufactured component, the tool vibrating in a manner to facilitate removal of the conglomerated powder.