Abstract: The present invention relates to a coated abrasive article containing abrasive agglomerates based on target cores that provide an extended surface. Target cores are defined as geometric shapes, e.g., spherical, rectangular, tetrahedral, conical, cylindrical, pyramidal or combinations and mixtures thereof. The preferred cores are porous structures with their own abrasive capacity as a grinding aid element. They are bonded on substrates, e.g., textile fabrics, plastic films, saturated or no treated papers, vulcanized fibers, non-wovens and mixtures thereof to produce extended surfaces on which are deposited the working abrasive particles, e.g., aluminum oxide, silicon carbide, zirconia alumina, ceramic aluminum oxide and mixtures thereof, through an electrostatic field to improve performance capabilities. The electrostatic field promotes orientation of the deposited grains around the cores with exposed sharp edges over the extended area, causing as a secondary effect the compacting of the abrasive grains.

Abstract: The invention provides mechanically activated metal fuels for energetic material applications. An exemplary embodiment involves mechanically treating micrometer-sized particles of at least one metal with particles of at least one fluorocarbon to form composite particles containing the at least one metal and the at least one fluorocarbon.

Abstract: According to one embodiment, a composite product includes: a matrix material including hexagonal boron nitride and one or more borate binders; and a plurality of cubic boron nitride particles dispersed in the matrix material. According to another embodiment, a composite product includes: a matrix material including hexagonal boron nitride and amorphous boron nitride; and a plurality of cubic boron nitride particles dispersed in the matrix material.

Abstract: A new chromium-containing fluorination catalyst is described. The catalyst comprises an amount of zinc that promotes activity. The zinc is contained in aggregates which have a size across their largest dimension of up to 1 micron. The aggregates are distributed throughout at least the surface region of the catalyst and greater than 40 weight % of the aggregates contain a concentration of zinc that is within ±1 weight % of the modal concentration of zinc in those aggregates.

Abstract: An electrocatalytic process for carbon dioxide conversion includes combining a Catalytically Active Element and Helper Catalyst in the presence of carbon dioxide, allowing a reaction to proceed to produce a reaction product, and applying electrical energy to said reaction to achieve electrochemical conversion of said reactant to said reaction product. The Catalytically Active Element can be a metal in the form of supported or unsupported particles or flakes with an average size between 0.6 nm and 100 nm. the reaction products comprise at least one of CO, HCO?, H2CO, (HCO2)?, H2CO2, CH3OH, CH4, C2H4, CH3CH2OH, CH3COO?, CH3COOH, C2H6, (COOH)2, (COO?)2, and CF3COOH.

Abstract: Synergized Platinum Group Metals (SPGM) catalyst system for TWC application is disclosed. Disclosed SPGM catalyst system may include a washcoat that includes stoichiometric Cu—Mn spinel structure, supported on doped ZrO2, and an overcoat that includes PGM, such as platinum (Pt) supported on carrier material oxides, such as alumina. SPGM catalyst system shows significant improvement in nitrogen oxide reduction performance under lean and also rich operating conditions. Additionally, disclosed SPGM catalyst system exhibits enhanced catalytic activity for carbon monoxide conversion. Furthermore, disclosed SPGM catalyst systems are found to have enhanced catalytic activity compared to PGM catalyst system, showing that there is a synergistic effect between PGM catalyst, such as Pt, and Cu—Mn spinel within disclosed SPGM catalyst system, which help in activity and thermal stability of disclosed SPGM catalyst.

Abstract: A porous composite metal oxide, including a mixture of first ultrafine particles containing alumina and second ultrafine particles containing zirconia, wherein the first ultrafine particles and the second ultrafine particles are uniformly dispersed in such a way as to satisfy a condition that standard deviations of content ratios (% by mass) of all metal elements contained in the porous composite metal oxide at 0.1% by mass or more are each 10 or less, the standard deviations being obtained by measuring content ratios of the metal elements at 100 measurement points within a minute analysis region of 20 nm square by energy dispersive X-ray spectroscopy using a scanning transmission electron microscope equipped with a spherical aberration correction function.

Abstract: A micro-spherical iron-based catalyst and a preparation method thereof are disclosed. The catalyst contains a potassium promoter, and at least one transitional metal promoter M which is one or more kinds of metals selected from Cr, Cu, Mn and Zn. It also contains a structure promoter S, which is SiO2 and/or Al2O3, wherein both of SiO2 and Al2O3 are modified by MoO3, TiO2 and/or ZrO2. The weight ratio of components is Fe:M:K:S=100:3-50:1-8:3-50, in which the metal components are calculated based on metal elements, the structure promoter is calculated based on oxides. The catalyst is prepared by co-precipitation method.

Abstract: A method to generate dense, multi-cyclic diamondoid fuels from bio-derived sesquiterpenes. This process can be conducted with both heterogeneous and homogenous catalysts and produces the targeted isomers in high yield. The resulting multi-cyclic structures impart significantly higher densities and volumetric net heats of combustion while maintaining low viscosities which allow for use at low temperature/high altitude. Moreover, bio-derived sesquiterpenes can be produced from renewable biomass sources. Use of these fuels will decrease Navy dependence on fossil fuels and will also reduce net carbon emissions.

Abstract: The invention relates a plant (1) for manufacturing half warm mix asphalts which comprises: a first moveable platform (10) for feeding in a controlled manner some or all of the aggregates of the half warm mix asphalt to a second moveable platform (30), wherein said aggregates are heated; a second moveable platform (30), wherein some or all of the aggregates coming from the first moveable platform (10) are heated in a drying drum (33); a third moveable platform (40), which extracts and filters powder from the aggregates coming from the second mobile platform (30), subsequently feeding it to the fourth moveable platform of the plant; a fourth moveable platform (20), wherein the material coming from the exit of the second moveable platform (30) or arriving directly from the first moveable platform (10) is mixed with a binder, with a filler and with any other materials, the mixed materials being different according to the desired end product, the temperature of the mixed materials being comprised between 70° C.

Abstract: The present invention describes a novel catalytic composition comprising at least one nickel complex, said complex being obtained from a mixture comprising at least one nickel precursor A with at least one imino-imidazole ligand B and a method of oligomerization of olefins using said catalytic composition.

Abstract: A method for making a carbonate polycrystalline diamond body includes combining a first quantity of diamond with a first quantity of magnesium carbonate to form a first layer for forming a working surface, and combining a second quantity of magnesium carbonate to form a second layer adjacent to the first layer, forming an assembly. The method includes placing a quantity of silicon or aluminum in or adjacent to at least a portion of the assembly and sintering the assembly including the silicon or aluminum at high pressure and high temperature, causing the silicon or aluminum to infiltrate at least one layer of the assembly.

Abstract: A polycrystalline diamond body, and a method for making a carbonate polycrystalline diamond body includes combining a first quantity of diamond particles with a first quantity of magnesium carbonate to form a first layer in an enclosure, the first layer having a working surface, and placing a second quantity of magnesium carbonate in the enclosure forming a second layer, the first layer and the second layer forming an assembly. A quantity of at least one of silicon or aluminum is mixed in with or placed adjacent to at least one of the first layer or the second layer. The assembly, including the at least one of silicon or aluminum, is sintered at high pressure and high temperature, causing the at least one of silicon or aluminum to infiltrate at least one layer of the assembly, forming a polycrystalline diamond body.

Abstract: A post manufacture method and apparatus for reducing residual stresses present within a component. The component includes a substrate, a polycrystalline structure coupled thereto, and residual stresses present therein. The method includes obtaining a component from a component category, determining a critical temperature and a critical time period for the component category at which the component becomes structurally impaired, determining a heat treatment temperature and a heat treatment time period based upon the critical temperature and the critical time period, and heating one or more remaining components from the component category to the heat treatment temperature for the heat treatment time period. The apparatus includes a heater defining a heating chamber and a molten bath positioned within the heating chamber. The components are placed within the pre-heated molten bath and isolated from oxygen during heating to the heat treatment temperature for the heat treatment time period.

Abstract: A liquid electrically initiated and controlled composition comprising an oxidizer, soluble fuel additive(s), and other optional additives to enhance the chemical or ballistic properties, or a combination thereof is disclosed. The liquid composition further comprises stabilizers to enhance thermal stability, sequestrants to minimize deleterious effects of transition metal contaminants, and combustion enhancers maximizing efficiency. Buffers and heavy metal sequestering or complexing agents may be used in combination to achieve the highest degree of thermal stability. Additional ionic co-oxidizers may be added to the liquid composition to stabilize the liquid oxidizer and further depress freezing point. The liquid phase of matter allows flow via pipes or tubes from tanks, reservoirs, or other containers, through metering valves, followed by ignition or combustion modulation when stimulated by electrodes, statically or dynamically.

Abstract: Embodiments of the invention relate to methods of making articles having portions of polycrystalline diamond bonded to a surface of a substrate and polycrystalline diamond compacts made using the same. In an embodiment, a molding technique is disclosed for forming cutting tools comprising polycrystalline diamond portions bonded to the outer surface of a substrate.

Abstract: Catalytic materials with high activity in various chemical reactions as well as high durability are described. The catalytic materials are composed of specific, hybrid combinations of inorganic/polymeric compounds containing metal nano-particles therein, and can be easily reused with negligible catalysts leaching. They are particularly useful, but not limited to, the hydrogenation of substituted ?,? unsaturated acids or esters.

Abstract: A method of preparing a spray dried catalyst by combining spray dried catalyst particles with wax so the spray dried catalyst particles are coated with wax, yielding wax coated catalyst particles, and shaping the wax coated catalyst to provide shaped wax coated catalyst. A method of activating Fischer-Tropsch catalyst particles containing oxides by contacting the catalyst particles with a reducing gas in an activation vessel to produce an activated catalyst, wherein contacting is performed in the absence of a liquid medium under activation conditions. A system for activating a Fischer-Tropsch catalyst containing an activation reactor configured to introduce an activation gas to a fixed or fluidized bed of the Fischer-Tropsch catalyst in the absence of a liquid medium and at least one separation device configured to separate a gas stream comprising entrained catalyst fines having an average particle size below a desired cutoff size from the activation reactor.

Abstract: In one embodiment, a system includes a nanoporous gold structure and a plurality of oxide particles deposited on the nanoporous gold structure; the oxide particles are characterized by a crystalline phase. In another embodiment, a method includes depositing oxide nanoparticles on a nanoporous gold support to form an active structure and functionalizing the deposited oxide nanoparticles.

Abstract: A double-layer three-way catalyst is presented, which is formed from a catalytic coating applied directly to an inert honeycomb and a catalytically active coating thereon, and is suitable especially for cleaning of exhaust gases of motor vehicles with gasoline-operated internal combustion engines. The catalyst contains, in each layer, an active aluminum oxide and a cerium/zirconium mixed oxide, both of which are catalytically activated by palladium. The second layer on the gas side contains not only palladium but also rhodium, which is applied to the active aluminum oxide and the cerium/zirconium mixed oxide of the second layer in addition to the palladium. The cerium/zirconium mixed oxide of the second layer has a higher zirconium oxide content than the cerium/zirconium mixed oxide of the first layer. The catalyst is notable for exceptional activity coupled with outstanding aging stability.