Abstract: Metal/ceramic abradable seals of the type used in jet aircraft are improved by using a substrate which is able to deform during cooling from the brazing temperature and then rendering the substrate rigid after the cool down.

Abstract: Hydrocarbon oil based antifoams compositions containing a hydrocarbon-silicon copolymer, a hydrophobic filler, an organo-silicone surfactant, a hydrocarbon carrier oil and optionally a silicone oil act to effectively defoam concentrated solutions, including those containing ionic surfactants or protein based solutions. The use of the hydrocarbon oil based silicone antifoams represents an inexpensive route to defoams difficult solutions.

Abstract: A titanium carbide base cermet with a high toughness which consists essentially of, in weight percentage, a dispersed phase of from 70 to 95% free from chromium carbide, and a binder phase of from 5 to 30%;(1) said dispersed phase consisting essentially of:(i) titanium nitride: from 10 to 25%,(ii) at least one of tungsten, molybdenum and carbides thereof: from 10 to 30%,(iii) zirconium carbide: from 0.2 to 5.0%,(iv) aluminum nitride: from 0.1 to 5.0%, and(v) A composite carbide produced by substituting at least one of tantalum carbide and niobium carbide for from 3 to 50% of titanium carbide: balance: and,(2) said binder phase consisting essentially of at least one metal of iron group and incidental impurities.

Abstract: Disclosed are coatings which are improved by a special peening process. Uniform sized spherical steel shot, in the range 1-2.5 mm is impacted at uniform low velocities onto a coated workpiece. Peening intensities are in the range 0.30-0.60 mm N. MCrAlY high temperature coatings are particularly improved, with densities of the order of 99 percent. Physical vapor desposited coatings have surface finishes of the order of 30.times.10.sup.-6 inch AA (Arithmetic Average) and plasma sprayed coatings have finishes of the order of 100.times.10.sup.-6 inch AA compared to unpeened finishes of 50-60.times.10.sup.-6 inch AA and 200-300.times.10.sup.-6 AA respectively.

Abstract: This invention relates to perfluorinated branched ether compounds which are useful as synthetic blood substitutes and perfusion media, and for other purposes, and to emulsions which contain such compounds. A method is disclosed for direct fluorination without creating excessive unwanted byproducts. Hydrocarbon ether starting compounds used in this invention may be purchased or synthesized.

Abstract: Disclosed is a method of reversibly immobilizing sulfate ash at least about 20% of which is sulfates of transuranic elements. The ash is mixed with a metal which can be aluminum, cerium, samarium, europium, or a mixture thereof, in amounts sufficient to form an alloy with the transuranic elements, plus an additional amount to reduce the transuranic element sulfates to elemental form. Also added to the ash is a fluxing agent in an amount sufficient to lower the percentage of the transuranic element sulfates to about 1% to about 10%. The mixture of the ash, metal, and fluxing agent is heated to a temperature sufficient to melt the fluxing agent and the metal. The mixture is then cooled and the alloy is separated from the remainder of the mixture.

Abstract: The invention relates to a method for preparing a pulverulent mixture of amphiphilic lipidic constituents and possibly of hydrophobic constituents, as well as to a method for producing hydrated lipidic lamellar phases from the pulverulent mixture.The method comprises dissolving the amphiphilic lipidic constituents and the hydrophobic constituents in an appropriate solvent and then atomizing said solution in a flow of gaseous fluid to produce the pulverulent mixture. The mixture thus obtained is a homogeneous and very fine powder which can be very easily dispersed in a suitable aqueous dispersion medium to produce either slightly hydrated lipidic lamellar phases or highly hydrated lipidic lamellar phases such as liposomes useful in the pharmaceutical and cosmetic fields.

Abstract: A sliding member highly improved with lubricating performance, wear resistant property and strength has a thin steel sheet or plate and sintered metal layer deposited on the steel sheet, wherein the sintered metal layer, comprises copper as a main component incorporated with a certain amount of tin, nickel, phosphorus, graphite and, optionally, with iron, and a sliding member exhibiting excellent lubricating performance, wear resistant property and strength even under impact and heavy loads includes a thick steel sheet or plate with which thin steel sheet of the above-mentioned sliding member is integrally joined.

Abstract: An improved diamond compact of the present invention comprises 20 to 85% by volume of diamond grains with a grain size of at least 3 .mu.m and the balance of a binder consisting of 20 to 95% by volume of ultra-fine diamond grains with a grain size of at most 1 .mu.m, at least one member with a grain size of at most 1 .mu.m, selected from the group consisting of carbides, carbonitrides, nitrides, borides of Group 4a, 5a and 6a elements of Periodic Table, solid solutions thereof and mixed crystals thereof and at least one member selected from the group consisting of iron group metals.

Abstract: This invention is directed to a composition for recovering a liquid organic material comprising:I. about 1 to about 30 wt. % of at least one of (a) benzylidene sorbitol, benzylidene xylitol or derivatives thereof, (b) hydrogenated castor oil, (c) 12-hydroxystearic acid, (d) 9,10-dihydroxystearic acid and (e) an amide of the member (b), (c) or (d), the composition further comprisingII. about 15 to about 70 wt. % of a hydrophilic solvent serving as a good solvent for the component I, and/orIII. about 15 to about 80 wt. % of at least one solvent selected from the group consisting of a hydrophobic solvent having a solubility of up to 5 in water, cyclohexanone, alkylcyclohexanone, N-cyclohexyl-2-pyrrolidone and N-alkyl-2-pyrrolidone, the components II and III being conjointly present when the component I is the compounds under (a).With use of the composition of the invention, liquid organic materials over a body of water can be effectively gelled and collected with high recovery ratio and less water content.

Abstract: A process for making a mechanical part of a complicated profile by preparing a compact having a projection or shaft (hereinafter called the inner part) and a compact having relative recess or opening (hereinafter called the outer part) by the compression of iron base metal powders, and by fitting the inner part into the outer part followed by sintering. This process is characterized in that the said inner part contains carbon as an essential component in an amount that is larger than the carbon content of the said outer part by 0.2% by weight or higher.

Abstract: Novel demulsifier compositions, their method of preparation and use as demulsifiers are described. The novel demulsifiers comprise the partially condensed reaction product of a blend of at least two oxyalkylated materials with a vinyl monomer. The demulsifiers are useful in the resolution of water-in-oil emulsions.

Abstract: A process is provided for preparing basic aluminum carbonate gels substantially free from foreign anions at a pH within the range from about 5.5 to about 7.0, according to the reactants used, and then converting such gels to high purity fibrous colloidal alumina monohydrate of the boehmite crystal lattice structure by hydrolysis with weak acids.

Abstract: A new compound is disclosed having the formula: ##STR1## wherein R is a C.sub.8 to C.sub.22 aliphatic group. The new compound is liquid at ambient temperatures and is useful as an asphalt emulsifier. Also disclosed are asphalt emulsions containing said compound.

Abstract: A wear-resistant metallic article is provided which comprises a metallic substrate, a barrier layer of a metal selected from the group consisting of nickel, alloys of nickel, copper and alloys of copper on a surface of the metallic substrate and a layer of wear-resistant material bonded to the substrate, with the wear-resistant material including a mixture of nickel aluminide in a copper base matrix.

Abstract: Aluminum hydroxycarbonate gel is precipitated under highly homogeneous conditions by continuously introducing an aluminum salt solution and an alkaline-reacting carbonate and bicarbonate solution into a vigorously agitated reactor vessel and continuously withdrawing the reaction mixture.

Abstract: A continuous process for the production of a solvent for use in the liquefaction of coal is described. The process comprises hydrogenating a mixture of 100 parts by weight of a hydrocarbon mixture and from 0.2 to 10 parts by weight of phenol and/or alkylphenol. The hydrocarbon mixture contains at least 50% by weight of a polycyclic (from tricyclic to pentacyclic) aromatic hydrocarbon or its alkyl derivative. The hydrocarbon mixture is distilled away in a proportion of at least 80% when heated at a temperature of from 320.degree. to 550.degree. C. The hydrogenation of the hydrocarbon mixture and phenol and/or alkylphenol may be carried out with or without the addition of from 0.05 to 0.

Abstract: A microwave oven cabinet is constructed with plastic materials and has a low resistivity coating on the outside surfaces thereof, which coating is achieved by applying a mixture of a metallic powder and polymer on the surfaces and curing the polymer, followed by an augmentation replacement reaction being effected to replace some of the metallic powder with a more noble metal in such a way that the total volume on the surface of deposited metal exceeds that of the original metal powder replaced at the surface.

Abstract: A precision molded article, such as a die cavity, is made by combining iron powder granules and optional manganese granules with a heat fugutive organic binder, molding the granule-binder mixture into a green molded preform, thermally degrading and removing essentially all the binder to form a skeletal preform, and infiltrating the preform with an infiltrant which has a lower melting point than the iron powder granules and which optionally contains manganese, with the proviso that either the above decribed manganese granules are employed or manganese-containing infiltrant is employed, thereby forming a molded article having a skeleton of ferroalloy granules having a martensitic or perlitic core and an outer layer of austenitic manganese steel, the skeleton being surrounded by infiltrant.

Abstract: A material and a process for use in making electrical contacts. The material is produced in powder form suitable for later processing into electrical contacts by standard metallurgical techniques generally involving compacting the powdered material to form a compact that preferably has a backing of metallic silver, sintering the compact to form the contact having a fine sintered silver backing and forming or cutting the contact to make it to the desired shape and size. The material, and in most general applications the contact made from the material, essentially consists of silver, approximately 15% cadmium oxide by weight, and lithium carbonate at a proportion of about 0.005 weight percent of lithium, which is approximately equal to 0.04 molecular percent of lithium carbonate.