A support rack can include a first component comprising a ceramic material and a second component comprising a ceramic material. The first component can intersect at least one wall of the second component and the first and second components can be coupled via a ceramic weld. A method of making a support rack can include providing a first component comprising a sintered ceramic material, providing a second component comprising an un-sintered or partially-sintered ceramic material, arranging the first and second component so that the first component intersects at least one wall of the second component, sinter bonding the first and second components together to form a ceramic weld at the intersection. In an embodiment, the support rack can be a piece of kiln furniture.

One example includes a method for fabricating a compound material. The method includes providing a first discrete material layer having a first thickness dimension. The first discrete material layer includes a first material having a first magnetic susceptibility. The method also includes depositing a second discrete material layer having a second thickness dimension over the first discrete material layer. The second discrete material layer can include a second material having a second magnetic susceptibility. The relative first and second thickness dimensions can be selected to provide a desired magnetic susceptibility of the compound material.

The invention relates to a method for the preparation of a blank of a ceramic material, wherein a first ceramic material and then a second ceramic material of different compositions are filled into a die and wherein the materials are pressed and after pressing are sintered. A layer of the first ceramic material is thereby filled into the die and a first cavity formed in the layer, the second ceramic material is then filled into the first open cavity and the materials pressed together and then heat-treated.

A light absorbing member includes a ceramic composite having a plurality of first ceramic particles exhibiting positive resistance temperature characteristics in a first ceramics having an open porosity of 5% or lower.

A cordierite-based sintered body according to the present invention contains cordierite as a main component and silicon nitride or silicon carbide. The cordierite-based sintered body preferably has a thermal expansion coefficient less than 2.4 ppm/° C. at 40° C. to 400° C., an open porosity of 0.5% or less, and an average grain size of 1 μm or less.

An epitaxy substrate and a method of manufacturing the same are provided. The epitaxy substrate includes a device substrate and a handle substrate. The device substrate has a first surface and a second surface opposite to each other, and a bevel disposed between the first and the second surfaces. The handle substrate is bonded to the second surface of the device substrate, wherein the oxygen content of the device substrate is less than the oxygen content of the handle substrate, and a bonding angle greater than 90° is between the bevel of the device substrate and the handle substrate.

The invention relates to A slurry composition, comprising: an inorganic powder; a dispersant; and a solvent wherein the dispersant is a block copolymer comprising at least one hydrophobic block A and at least one hydrophilic block B, and wherein the blocks A and B comprise repeating units represented by the following general formula (I) wherein R.sup.1 is selected from a hydrogen atom, a linear or branched alkyl group having 1 to 10 carbon atoms and a cyclic alkyl group having 4 to 6 carbon atoms, and wherein at least one carboxylic acid group or a salt thereof is covalently linked to the block copolymer.

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A gas turbine engine component includes a gas turbine engine component body formed of a ceramic matrix composite material having at least one fastener integrally formed with the gas turbine engine component body as a single-piece structure. The gas turbine engine component body initially comprises a rigidized preform structure formed from a polymer based material. The at least one fastener connects the gas turbine engine component body to an engine support structure.

A method for manufacturing an electrostatic chuck with multiple chucking electrodes made of ceramic pieces using metallic aluminum as the joining. The aluminum may be placed between two pieces and the assembly may be heated in the range of 770 C to 1200 C. The joining atmosphere may be non-oxygenated. After joining the exclusions in the electrode pattern may be machined by also machining through one of the plate layers. The machined exclusion slots may then be filled with epoxy or other material. An electrostatic chuck or other structure manufactured according to such methods.

An electrostatic chuck for a substrate processing system includes a monolithic body made of ceramic. A plurality of first electrodes are arranged in the monolithic body adjacent to a top surface of the monolithic body and that are configured to selectively receive a chucking signal. A gas channel is formed in the monolithic body and is configured to supply back side gas to the top surface. Coolant channels are formed in the monolithic body and are configured to receive fluid to control a temperature of the monolithic body.