A method of forming a substrate support for use in a processing chamber includes forming a porous region in each of a plurality of ceramic green sheets, stacking the plurality of ceramic green sheets, each having the porous region formed therein, to form a ceramic laminate, and sintering the ceramic laminate to form a monolithic ceramic body having a porous plug formed therein. The porous plug includes the porous regions in the plurality of ceramic green sheets that are sintered.

A glass, substantially not including an alkali metal oxide and BaO, and including, in terms of mol % on the basis of oxides, 40 to 44% of SiO.sub.2, 15 to 23% of MgO, 28 to 36% of CaO, and 5 to 10% of Al.sub.2O.sub.3, in which a total content of SiO.sub.2, MgO, CaO, and Al.sub.2O.sub.3 is 97% or more, in which a molar ratio of CaO content to MgO content represented by CaO/MgO is 1.2 to 2.3.

A ceramic article includes a flexible backing selected from paper, woven fabric, non-woven fabric, polymeric films, metal foils, and combinations thereof. A green ceramic layer is on a first side of the flexible backing, wherein the green ceramic layer includes a ceramic material and a polymeric binder. A major surface of the green ceramic layer includes a pattern of features.

A system for producing chemicals, such as, ethylene or gasoline, at high temperature (above 1100 degrees C.) having a feedstock source. The system includes a chemical conversion portion connected with the feedstock source to receive feedstock and convert the feedstock to ethylene or gasoline. The conversion portion includes a coil array and a furnace that heats the feedstock to temperatures in excess of 1100 C. or 1200 C. or even 1250 C. or even 1300 C. or even 1400 C. A method for producing chemicals, such as ethylene or gasoline, at high temperature.

A method of producing a hermetic package of the present invention includes the steps of: preparing an aluminum nitride base, and forming a sintered glass-containing layer on the aluminum nitride base; preparing a glass cover, and forming a sealing material layer on the glass cover; arranging the aluminum nitride base and the glass cover so that the sintered glass-containing layer and the sealing material layer are brought into contact with each other; and irradiating the sealing material layer with laser light from a glass cover side to soften and deform the sealing material layer, to thereby hermetically seal the sintered glass-containing layer and the sealing material layer with each other to obtain a hermetic package.

Vitreous or at least partly crystallized sealing material is provided. The sealing material is from the system SiO.sub.2B.sub.2O.sub.3CaOMgO, which is free from BaO and/or SrO and which has an improved coefficient of thermal expansion and improved crystallization properties. The sealing material is employed to produce joint connections, electrical feedthroughs, and/or as a barrier layer.

Disclosed herein are methods for making a sealed device (200), the methods comprising positioning a sealing layer comprising at least one metal between a first glass substrate (201a) and a second substrate (201b) to form a sealing interface; and directing a laser beam operating at a predetermined wavelength onto the sealing interface to form at least one seal (207) between the first and second substrates and to convert the at least one metal to metal nanoparticles. Sealed devices having a seal comprising metal nanoparticles having a particles size of less than about 50 nm are also disclosed herein, as well as display devices comprising such sealed devices.

A method for making ceramic fixed partial dentures comprising separating the as-sintered partial denture structure, rejoining the retainers and pontic with glass, which forms a strong joint between the retainers and pontic after sintering. This method may produce ceramic long-span fixed partial dentures with a better fit.

An apparatus can include a ceramic component, a metal component, and a glass sealing material that bonds the ceramic and metal components to each other. In an embodiment, the coefficients of thermal expansion of the components and glass sealing material can be within 4 ppm/ C. of one another. The metal component may be relatively oxidation resistant. The glass sealing material may have a relatively low amount of an amorphous phase as compared to one or more crystalline phases within the glass sealing material. The apparatuses can exhibit good bond strength even after long term exposure to high temperature, thermal cycling to a high temperature, or both. In an embodiment, the metal component may allow another metal component of a different composition to be used without a significant impact on the integrity of the bonded apparatus.

Described is a process for preparing a ceramic substrate bonded with a metal foil. Moreover, described is a metal-ceramic-substrate provided with a thick-film layer and the use of a thick-film paste for bonding a metal foil onto a ceramic substrate.