Abstract: The invention relates to an active coating for reducing or eliminating the build-up of coke deposits on a metal surface of a reactor component. The coating comprises a catalyst system and an adhesion/activation promoter. The catalyst system comprises at least a first compound and a second compound. The first compound is selected from one of the following groups of compounds: (a) a Group IA metal salt, (b) a Group IIA metal salt, and (c) a rare earth metal oxide, and the second compound is selected from a different group from the first compound. The adhesion/activation promoter comprises at least a first oxide and a second oxide. The first oxide is selected from one of the following groups of oxides: (d) a Group IIA oxide, (e) a Group IIIA oxide, and (f) a Group IVA oxide, and the second oxide is selected from a different group from the first oxide.

Abstract: A thermal spray composition and method of deposition for abradable seals for use in gas turbine engines, turbochargers and steam turbines. The thermal spray composition comprises a mixture of metal-clad solid lubricant particles and unclad solid lubricants particles for producing an abradable seal used in the compressor section of gas engines, aircraft engines, radial compressors and the like. The metal is selected from alloys of Ni, Co, Cu, Fe and Al, preferably Ni alloys, and the solid lubricant is at least one of hexagonal boron nitride, graphite, calcium fluoride, lithium fluoride and molybdenum disulphide, preferably hexagonal boron nitride or hexagonal boron nitride and graphite.

Abstract: A process for the production of a supported catalyst. The process comprises heating a slurry that comprises a catalyst support and at least one active catalytic ingredient precursor. Gas is introduced to the slurry at a sufficient pressure to reduce the at least one active catalytic ingredient precursor and deposit at least one active catalytic ingredient onto a surface of the catalyst support to form the supported catalyst. The supported catalyst has a large active catalytic surface area.

Abstract: A thermal spray composition and method of deposition for abradable seals for use in gas turbine engines, turbochargers and steam turbines. The thermal spray composition includes a solid lubricant and a ceramic preferably comprising 5 to 60 wt % total of the composition in a ratio of 1:7 to 20:1 of solid lubricant to ceramic, the balance a matrix-forming metal alloy selected from Ni, Co, Cu, Fe and Al and combinations and alloys thereof. The solid lubricant is at least one of hexagonal boron nitride, graphite, calcium fluoride, lithium fluoride, magnesium fluoride, barium fluoride, tungsten disulfide and molybdenum disulfide particles.

Abstract: A particulate conductive filler which comprises a particulate elastomer polymer core having a conductive metal coating thereon. The conductive filler is uniformly dispersed in an elastomer polymer matrix to form composite materials for conductive applications.

Abstract: There is provided a particulate conductive filler which comprises a noble metal coating formed over a non-noble metal coating over an inner carbon-based core. The conductive filler is used in conjunction with a polymer matrix to form composite materials for conductive applications.

Abstract: A connective medium is provided for use in ball grid assemblies for detachable connections between electronic devices and circuit boards. The medium includes novel, discrete spheres defining an inner metallic, spherical core and one or more outer, electrically conductive concentric, hard and non-deformable metallic layers of nickel, copper or alloys thereof and a coating of silver or gold thereon.

Abstract: Thermally sprayable powders for the formation of abradable seals and abradable seals formed by thermally spraying the powders include an alloyed metal phase material and a solid lubricant ceramic phase material. The alloyed metal phase material includes a major amount of a matrix metal which can be one or more of Ag or Cu, at least one melting point depressing metal which can be one or more of Si, B, Mn, or Al, and at least one oxidation resistant metal which can be one or more of Al, Cr, or Si. The solid lubricant ceramic phase is preferably hexagonal boron nitride, molybdenum sulphide, graphite, talc, bentonite or mica. Abradable seals formed by thermally spraying the powders are suitable for use with Ti alloy blades at temperatures up to 700.degree. C.

Abstract: A cobalt based coating is provided which is functional to reduce the coefficient of friction between two operatively, frictionally engaging titanium alloy surfaces.

Abstract: An improved process for the manufacture of uniformly and accurately sized metal spheres, particularly copper spheres, which comprises the steps of classifying a starting lot of spheres into closely sized fractions; separately electroplating each size fraction to a desired final mean diameter and size distribution; and then combining the plated fractions to give a metal sphere product having the requisite mean particles size and size distribution. The electroplating build-up step is characterized by a high level of precision. Additional benefits derive from the high hardness of copper electroplate on relatively soft copper starting particles which facilitates grinding or polishing irregularly shaped plated particles down to the desired sphericity and mean diameter, from the ability of metal such as copper electroplate to cover and envelop contaminated surfaces of starting particles, and from the ability to produce spheres having a unique combination of bulk and surface properties.

Abstract: A cobalt based coating is provided which is functional to reduce the coefficient of friction between two operatively, frictionally engaging titanium alloy surfaces.

Abstract: A process for producing a nickel-chromium/chromium carbide coating on a substrate comprises flame spraying nickel/chromium carbide composite powder onto the substrate to cause burnout of some of the carbon in the carbide during spraying with the result that some of the chromium becomes alloyed with the nickel. The nickel/chromium carbide composite powder comprises particles each having a core of chromium carbide at least partially coated with nickel, and the coating comprises chromium carbide particles in a matrix of nickel-chromium alloy.