A method of forming a cast component and a method of forming a casting mold is generally provided. The method is performed by plugging or covering an opening in a ceramic core-shell mold. The ceramic core-shell mold includes at least a first core portion, a first shell portion, and at least one first cavity between the core portion and the first shell portion. The core-shell mold may be manufactured using an additive manufacturing process. At least a portion of the ceramic core-shell mold and the plug or cover is coated with a second ceramic material.

The present disclosure generally relates to integrated core-shell investment casting molds that provide a filament structure corresponding to a cooling hole pattern in the surface of the turbine blade, stator vane, or shroud. The disclosure also relates to the forming of a ceramic coating on at least a portion of the shell of the core-shell casting mold.

A gaseous emissions treatment component is made by extruding a green ceramic mix through a die to form an extrusion having a honeycomb substrate with elongate cells extending its length and with the cells bounded by walls dividing adjacent cells from one another. Molten metal for use in induction heating of the component is placed in selected cells and is solidified by cooling.

The invention relates to a method for producing three-dimensional molded parts in two method steps and infiltrating the molded part, as well as a material system.

A method of manufacturing a housing of an electronic device includes applying a mask to a portion of a ceramic green body to define a masked portion and an unmasked portion, applying a pigment to the ceramic green body to color the unmasked portion, and sintering the ceramic green body to remove the mask and form a ceramic housing. The ceramic housing may comprise a first portion corresponding to the masked portion and having a first color, and a second portion corresponding to the unmasked portion and having a second color different from the first color.

According to the present invention, an additively manufactured ceramic core having both strength and collapsibility, and meltability and moreover having surface roughness improved is provided. The additively manufactured ceramic core disclosed herein is an additively manufactured ceramic core to be used as a core when manufacturing a metal casting and includes a central part corresponding to an additively manufactured fired body of a predetermined ceramic powder, a first layer covering at least a part of the central part, and a second layer formed on a surface layer of the first layer. When an average erosion rate corresponding to an average value of erosion rates calculated from an expression: erosion rate (m/g)=B/A in which A g represents a projection quantity of projection particles and B m represents an erosion depth in a fragility test is used, the average erosion rate of the first layer is lower than that of the central part and the average erosion rate of the second layer is higher than that of the first layer. The second layer has a surface roughness Ra of 10 m or less.

Tableware, utensil and a preparation method thereof are provided, the tableware includes a bowl body. The bowl body includes a side wall portion, the side wall portion is connected to a bowl bottom through an arc-shaped portion. A bottom of the bowl bottom is provided with a bowl seat; the side wall portion, arc-shaped portion, and bowl bottom form a first chamber with an upward opening, the bowl seat is in a circular shape to form a second chamber with a downward opening; a dipping layer, which is provided at a bottom of the bowl body and covers the bowl bottom and bowl seat. By performing a dipping treatment on the bowel bottom and bowel seat of the bowl body, a plastic dipping layer is applied to surfaces of the bowl bottom and bowel seat. The dipping layer has characteristics of low thermal conductivity and high friction coefficient.