PURPOSE:To obtain the ceramics substrate low in specific dielectric constant, high in mechanical strength, having a thermal expansion coefficient close to that of metallic tungsten or molybdenum. CONSTITUTION:Mixed powder comprising >=70wt.% of mullite powder <=5mum in average particle diameter, <=30wt.% of silica powder <=2mum in average particle diameter, <=15wt.% of aluminum oxide powder <=1mum...

A screed composition particularly a floor screed composition which may be used to seal, for example, concrete base surfaces such as concrete floor surfaces comprises a curable resin and a particulate filler comprising glass particles formed by crushing glass. The glass particles are relatively large, between 60% and 75% by weight of the crushed glass being retained on a .25mm sieve. The resin may ...

A combination casket and shield comprises a casket having a casket shell with a pair of side walls, a pair of end walls connecting the side walls and an interior. The shell walls include a groove therein extending peripherally around the interior of the casket shell. An elongated sealing strip is disposed in the casket shell groove and has first and second resilient sealing members. A transparent ...

An integrated circuit package comprises a ceramic sub-package (1) a substrate (5) mounted on shoulders (4) therein, a lid (9) and connecting pins (10). The sub-package (1) and substrate carry a multiplicity of naked semi-conductor dies (2A, 2B, 2C, 6A, 6B, 6C) which are connected to one another and the subpackage (1) via wire bonds (3, 7, 8). If desired, further die-carrying substrates may be stac...

The plant includes a separation tank (12) with an outlet duct (18) leading from a lower region so that buoyant contaminants (78) entering the separation tank (12) via an inlet pipe (36) cannot leave via the duct (18). Periodically the separation tank (12) is flushed out with clean water from a supply pipe (40), flow from the separation tank (12) is prevented and buoyant contaminants are flushed ov...

Metal cookware coated with a multilayer system including a primer with more Al2O3 and a blend of PTFE and PFA or FEP, a midcoat with less Al2O3, and a topcoat with PTFE, and processes for preparing such coating systems.

New alloys of cobalt chromium having more ceramic-like properties than have been previously obtained in other alloys of CoCr are provided. Their methods of preparation and articles of manufacture especially for orthopedic applications (for example in knees and hips) are given.

A solid 10-200 mg/m<2>, calculated as chromium metal, film is formed on a zinciferous surface by coating the surface with an acidic aqueous liquid composition that contains hexavalent chromium ions, trivalent chromium ions, at least one of sulfate ions and nitrate ions, and zinc, nickel, cobalt, and/or aluminum ions, in which liquid composition the trivalent chromium ion/hexavalent chromium ion mo...

This invention relates to heat-cured foundry binders comprising in admixture (1) a source of soluble silica, and (2) a source of soluble alumina, such that the source of silica, source of alumina, or both contain an alkali metal. The binder components form a saturated solution when they are mixed with an aggregate. The resulting mix is shaped and heated at an elevated temperature to form a cured f...

A conveyor for waste has a waste feed shaft which is laterally connected to a horizontally divided conveyor channel. A screw conveyor being drivable by a motor is located in the longitudinal direction of the conveyor channel. The conveyor channel opens into a housing, in particular into a pyrolysis reactor, which by way of example is operated in conjunction with a low-temperature carbonization com...

A pallet includes a planar portion (22,52) for supporting articles and feet (24,54) extending from the bottom of the planar portion. The upper surface (26,56) of the planar portion includes recesses (32,62) formed therein having center islands (30,60) extending upward even with the supporting surface. The feet include bottoms having a center recess (36,66) and rim (34,64) extending around the rece...

Das Stapelbrett ist als stapelbare Palette (1) ausgebildet, welche auf ihrer Unterseite an gegenüberliegenden Seitenrändern (1a, 1b) je zwei hohle Füsse (2) und je zwei hohle Rastnocken (4, 5) mit einer geringeren Eingriffstiefe als die der Füsse aufweist. Die Füsse (2, 3) an jedem Längsrand der Palette liegen den hohlen Rastnocken (4, 5) am andern Längsrand gegenüber. Auf diese Weise ist beim Auf...

The leadframe (10) includes a semiconductor device mounting area (12), and a number of electrically conductive leads. The mounting area is formed of a metal impregnated silicon carbide. The conductive leads are comprised of a metal coupled to the mounting area. The conductive lead metal may be aluminum. The thermal expansion of the mounting area is similar to that of gallium arsenide or silicon.

Low profile microchip module assemblies are formed by first mounting one or more active semiconductor integrated circuit chips on a multilayer metallisation and dielectric structure on a substrate of, say, silicon or alumina, by wire bonding or flip-chip solder bonding, and then inverting the substrate and mounting it on a printed circuit board by means of solder bump connections. The solder bump ...

The present invention belongs to prodn of decorative board, and the chemical decorative board compounded with high-aluminium cement, kaolin and drying promoter as main material has fireproof property and excellent decorative effect.

The ceramic-glazing pigment consists of flux in 70-95 wt% and colouring agent in 5-30 wt%. The said flux consists of main flux comprising SiO2, B2O3, Bi2O3 and Al2O3, compound flux assistant comprising two kinds of alkali metal oxide and one kind of alkali earth metal oxide, stabilizer comprising ZrSiO4, SnO2 and La2O3, and colouring assistant selected from MgO, CaO, ZnO and TiO2. The pigment of t...

PCT No. PCT/DE96/00069 Sec. 371 Date Sep. 17, 1998 Sec. 102(e) Date Sep. 17, 1998 PCT Filed Jan. 11, 1996 PCT Pub. No. WO96/22337 PCT Pub. Date Jul. 25, 1996A coating material having reflective properties in two wavelength ranges and absorbent properties in a third wavelength range. The coating material comprises a binder, flaky first particles, and second particles. The binder has a transparency ...

This invention provides a medical device for delivering volumetric quantities of a first and a second biochemically reactive fluid comprising a first container having an opening, the first container being adapted to contain the first biochemically reactive fluid; a second container having a second fluid opening adjacent the first fluid opening, the second container being adapted to contain the sec...

A video camera suitable for use in extreme low levels of illumination, utilising extended integration periods by incorporating an image memory. The memory allows operation with integration periods that considerably exceed the period of a normal output frame, while retaining full compatibility with existing signal standards (e.g. 625/50 PAL). Since a CCD sensor is 'reset' by a read operation, the i...

A processing system and method of operation are provided. A determination is made about whether to dispatch an instruction to execution circuitry for execution. After determining to dispatch the instruction, a determination is made about whether an exception condition exists for the instruction. The instruction is dispatched to the execution circuitry. In response to determining an exception condi...