126results about How to "Control oxidation" patented technology

Methods of treating metal-containing thin films, such as films comprising titanium carbide, with a silane / borane agent are provided. In some embodiments a film comprising titanium carbide is deposited on a substrate by an atomic layer deposition (ALD) process. The process may include a plurality of deposition cycles involving alternating and sequential pulses of a first source chemical that comprises titanium and at least one halide ligand, a second source chemical comprising metal and carbon, wherein the metal and the carbon from the second source chemical are incorporated into the thin film, and a third source chemical, wherein the third source chemical is a silane or borane that at least partially reduces oxidized portions of the titanium carbide layer formed by the first and second source chemicals. In some embodiments treatment forms a capping layer on the metal carbide film.

The present invention is laminar flow plasma spraying equipment and method. A laminator flow plasma generator with different powder feeding modes, inside the gun or outside the gun and single port ormultiple ports, is used. While maintaining the laminar flow plasma jetting state in small power, air flow rate is increased to raise the heat efficiency of the jet. According to powder sort, materialproperty and particle size, proper jet energy and distribution and carrying air flow rate are selected to obtain high-quality coating. The present invention has les sintroduced impurity, high jet energy utilization, capacity of spraying high-smelting point coating at relatively low power condition, less oxidation of non-oxide coating and full heating of the powder material.

The subject matter disclosed herein is directed to stable, highly-effective topical formulations comprising permethrin, fipronil and a solvent system that is sufficient to solubilize these two active ingredients and limit degradation of fipronil to its sulfone, and their uses in topical applications on animals and the environment. Useful formulations comprise from about 30% to about 55% (w / w) permethrin and about 2 to 15% (w / w) fipronil and a solvent system that comprises N-methylpyrrolidone and a glycol, glycol ether, glycol ester, fatty acid ester or neutral oil, wherein the N-methylpyrrolidone and glycol, glycol ether, glycol ester, fatty acid ester or neutral oil are present in a weight:weight ratio of from about 1:2.0 to about 1:3.5, glycol, glycol ether, glycol ester, fatty acid ester or neutral oil to n-methylpyrrolidone. These two actives when combined in the described amounts have been found to have unexpected enhanced repellent activity against stable fly. However, it is the formulations described herein that provide solvency and stability that maintain synergistic concentrations after application on an animal.

The present invention is directed to a method for melting scrap of an aluminum alloy containing lithium. The steps include providing scrap containing aluminum-lithium-type alloys, preparing an initial liquid metal bed of a first composition in a smelting oven, loading the scrap onto the initial liquid metal bed so as to create a floating layer of the scrap with a controlled thickness at the surface of the liquid metal bed, partially melting the floating layer via contact with the metal bed so as to obtain a liquid metal bath having a second composition, and removing the liquid metal from the second composition of the liquid metal bath. The method has technical and economic advantages. It does not require investment in a particular installation and it requires minimal use of expensive expendable materials such as inert gas, because the formation of a floating layer having a controlled thickness makes it possible to effectively protect the surface of the liquid metal from oxidation.

It is, an object of the present invention to provide a process of forming a refractory metal liner that includes depositing a layer of refractory metal on a first conductive layer, where at least half of the depositing is carried out in the presence of an amount of passivating agent that is sufficient to impede subsequent reaction of at least a top half of the layer of refractory metal with the first conductive layer and is less than an amount of passivating agent necessary to form a stoichiometric refractory metal with the passivating agent. The process also includes annealing the refractory metal and the first conductive layer in a first element ambient, thereby forming a stoichiometric refractory metal with the first element in at least a portion of the top half of the layer of refractory metal.

The invention discloses a nourishing youth-keeping facial cleanser and a preparation method thereof. The facial cleanser comprises the substances of: coconut oil, rose infused oil, snow Lotus herb infused oil, gum Arabic, west tragacanth gum, coconut juice, coconut oil fatty acid disodium glutamate, sodium sarcosinate, fatty acid methyl ester sulfonate, glycerine, distilled water, white fungus extract liquid, watermelon extract liquid, lily extract liquid, sodium chloride, vitamin E, a cationic guar gum solution, an essence, ethyl paraben, and disodium edetate. The nourishing youth-keeping facial cleanser provided by the invention has a milky-white color, and is transparent and crystal. The facial cleaner has a proper viscosity, a proper consistency, good stability, rich foam, and good fragrance. The facial cleanser can provide nutrients and deep nourishing effects for facial skins. With the facial cleanser, the skins can turn moistened and elastic.

The invention discloses a low-pressure casting method, a cooling control process and an exhaust system of a large impeller. The low-pressure casting method comprises the steps that a manufactured forming element and a manufactured mold core are dried, and a low-pressure casting mold of the impeller is preheated; a casting material is put in a casting device, heating and smelting are carried out to form a casting solution, and slag removal is carried out on the casting solution when the casting solution reaches the set temperature; the casting mold of the impeller is assembled, and the casting mold of the impeller and the casting device are connected to form an impeller casting system; the low-pressure casting device is subjected to low-pressure mold filling along a set pressure curve; after mold filling is finished, the low-pressure casting mold of the impeller is cooled; and after the temperature of the low-pressure casting mold of the impeller is reduced to the set temperature, the impeller is taken out to be cleaned. In the casting process, the pressure and the speed are adjusted, and therefore short run can be reduced; aluminum liquid oxidization can be controlled by adjusting the aluminum liquid temperature; and shrinkage porosity can be reduced by adjusting the cooling process.

A glucose fuel cell for reception into a given constrained volume of implantation in a vertebrate in which the glucose fuel cell has access to fluid containing glucose. The fuel cell includes an anode adapted to oxidize the glucose, a cathode adapted to reduce an oxidant, and a membrane disposed between the anode and the cathode and separating the anode from the cathode. At least one of the anode or cathode define a flexible sheet that is geometrically deformed to be receivable into the given constrained volume of implantation and increase volumetric power density. Related methods of making a glucose fuel cell of this type and implantable assemblies including the glucose fuel cell are also disclosed.

A method is described for producing nuclear fuel products, including the steps of receiving metallic or intermetallic uranium-based fuel particle cores, providing at least one physical vapour deposited coating layer surrounding the fuel particle core and embedding the nuclear fuel particles in a matrix so as to form a powder mixture of matrix material and coated fuel particles. The at least one physical vapour deposited coating layer may include inhibitors of inhibiting, stabilizing and / or reducing interaction between metallic and intermetallic uranium-based fuel particles cores and the matrix wherein the fuel particles typically may be embedded. The deposited coating layer may include neutron poisons.

The present invention relates to a preparation method for an Mg2Si thermoelectricity material. The method comprises the following steps: (1) uniformly mixing Mg powder and Si powder under an Ar protection atmosphere to obtain a mixture; (2) placing the mixture in a glove box filled with Ar, and placing the glove box in a stainless steel vacuum ball milling tank to carry out intermittent ball milling to obtain uniformly-mixed powder; (3) carrying out tableting on the mixed powder to obtain a Mg-Si mixed powder tablet; (4) loading the Mg-Si mixed powder tablet into a graphite mold, and placing graphite mold in a tube furnace under an Ar atmosphere to carry out primary sintering and thermal insulation to obtain Mg2Si thermoelectricity material alloy powder; (5) carrying out tableting on the Mg2Si thermoelectricity material powder to obtain a Mg2Si alloy tablet; and (6) loading the Mg2Si alloy tablet into the graphite mold and placing the graphite mold in the tube furnace under an Ar atmosphere to carry out secondary sintering and thermal insulation to obtain the Mg2Si block thermoelectricity material. The preparation method has characteristics of simple process, easy operation and low cost. The obtained Mg2Si thermoelectricity material has characteristics of high product purity, small particle size and uniform distribution.

The present invention is related to carbon-doped metal oxide films. The carbon-doped metal oxide films provide a low coefficient of friction, for example ranging from about 0.05 to about 0.4. In addition, the carbon-doped metal oxide films applied over a silicon substrate, for example, provide anti-stiction properties, where the measured work of adhesion for a MEMS device cantilever beam coated with the carbon-doped metal oxide film is less than 10 μJ / m2. In addition, the carbon-doped metal oxide films provide unexpectedly good water vapor transmission properties. The carbon content in the carbon-doped metal oxide films ranges from about 5 atomic % to about 20 atomic %.

The invention discloses a flue gas desulfurization and denitration device and method. The device comprises: a desulfurization container, the bottom of which is equipped with a desulfurization liquid material storage area, above which a flue gas inlet is disposed, with a flue gas washing and desulfurization structure being arranged above the flue gas inlet; a denitration container, the bottom of which is equipped with a denitration liquid material storage area, above which a flue gas washing and denitration structure is arranged, with a separation structure for removing solid particles and liquid drops being disposed above the flue gas washing and denitration structure, and a gas outlet being disposed at the top of the denitration container; an oxidization pipeline for communicating the desulfurization container and the denitration container; an atomization spray structure that is disposed in the oxidization pipeline and capable of providing structure connection together with chlorine dioxide, with the chlorine dioxide mist sprayed by the atomization spray structure being mixed with the flue gas in the oxidization pipeline. The flue gas desulfurization and denitration device and method provided by the invention can realize high efficiency and high utilization oxidation of ClO2 to NO, are safe and convenient to operate, and are convenient for industrial application.

The invention provides steel for a composite microalloying welding wire and a preparation method thereof. The steel is characterized by comprising the following chemical components in percentage by weight: no less than 0.06% and no more than 0.15% of C, no less than 0.81% and no more than 1.15% of Si, no less than 1.40% and no more than 1.85% of Mn, no less than 0.08% and no more than 0.15% of Ni, no less than 0.05% and no more than 0.15% of Cr, no less than 0.05% and no more than 0.15% of Mo, no less than 0.008% and no more than 0.012% of Ti, no less than 0.006% and no more than 0.030% of V, no less than 0.015% and no more than 0.025% of Nb, no less than 0.0005% and no more than 0.0030% of B, no more than 0.025% of S, no more than 0.025% of P, no more than 0.005% of O and the balance of Fe. The preparation method comprises the following steps of converting, ladle bottom argon blowing, LF refinement, fully-protected continuous casting, hot rolling and STELMOR cooling. The composite alloying provided by the invention is beneficial to refine molten drops, stabilize current and enhance the weld quality, and is beneficial to enhance the weld strength.

The invention relates to a processing method of spherical health care red tea and a product thereof, and belongs to the technical field of tea processing and making. The specific processing working procedures comprise picking, spreading, rocking, drying, rolling, primary spreading, primary stir-frying, spreading drying and dampening, secondary spreading and drying, repeated stir-frying, spreading drying and dampening, drying and packaging, and further comprise primary package color fixing working procedure and repeated package color fixing working procedure; the primary package color fixing working procedure is performed between the rolling working procedure and the primary spreading drying working procedure; and the repeated package color fixing working procedure is preformed between the spreading drying and dampening working procedure and the secondary spreading and drying working procedure; folium mori extract containing 1-Deoxynojirimycin is added in the repeated stir-frying working procedure, the content of 1-Deoxynojirimycin in the folium mori extract is 10% to 50%, and the adding amount of 1-Deoxynojirimycin is 0.1-1% of leaf dropping amount. For a product made by adopting the processing method of spherical health care red tea, the content of tea polyphenol in the product is 70-110 mg / g. The spherical health red tea has the beneficial effects of being beautiful in appearance, pure in taste, and mellow and full in fragrance; the product effects of reducing blood sugar and preventing and controlling diabetes are enhanced; and the benefits are greatly improved.

Methods and systems are provided for treatment of an exhaust stream, comprising nitrogen oxides. The method comprises a first oxidation of compounds comprising one or more of nitrogen, carbon and hydrogen in the exhaust stream; and a control of a first supply of a first additive to the exhaust stream to prevent an accumulation of soot exceeding a soot threshold value in a catalytic filter. This soot threshold value depends at least on operating conditions for the combustion engine, which impact a level of a flow for the exhaust stream. A first reduction of nitrogen oxides is performed using reduction characteristics of a catalytic coating in the catalytic filter and the supplied first additive. Soot particles are caught and oxidized. A control of a second supply of a second additive is performed, following which a second reduction of nitrogen oxides is performed using the first and / or the second additive in a reduction catalyst device.

The invention discloses a preparation method of citrus peel tea. The preparation method comprises the following steps of (1) preparing old Tieguanyin: selecting the old Tieguanyin for standby application; (2) preparing citrus peel: selecting mature moderate citruses with the fruit shape within 6 cm as raw materials, carefully selecting, cleaning, then forming round mouths in citrus pedicels, and removing pulp so as to obtain top covers and citrus shells for standby application; (3) loading the old Tieguanyin prepared in the step (1) in the citrus shells; (4) covering the top covers on the citrus shells, wrapping with tinfoil, then putting in a food steamer so as to be steamed, and then cooling; (5) releasing the tinfoil, baking the whole citruses by a drying machine, then cooling, and repeating the steps. The preparation method has the advantages of simplicity, high nutritive value and good fragrance of finished products, the adopted raw materials have the advantages of nature, safety and no chemical additive, and the citrus peel tea has the advantages of convenience in carrying and storage, rapidity in use and long expiration date and is healthy tea which can be drunk for a long time.

The invention provides a method for preparing sintered neodymium iron boron magnets in a 3D cold printing mode and belongs to the field of powder metallurgy. By wrapping the surfaces of neodymium ironboron magnetic powder with layers of oxygen-free organic film, the magnetic powder is prevented from being oxidized in the 3D cold printing process, meanwhile, printing slurry is prepared by adoptinga low-molecular-weight and low-oxygen gelatin system, printing orientation forming of the magnets is achieved through magnetizing, and after isostatic cool pressing and sintering are performed, sintered neodymium iron boron parts in complex shapes are finally obtained. Oxygen-free organic matter is adopted for wrapping the surfaces of the neodymium iron boron powder which is oxidized easily, theoxidation problem of the magnetic powder in the forming process is controlled, the 3D cold printing neodymium iron boron slurry is prepared by adopting the low-molecular-weight and low-oxygen gelationsystem, and the oxygenation situation of the magnets in the forming process are further controlled. The sintered neodymium iron boron magnets prepared through the method provided by the invention have the good magnetic performance, near-net forming of all complex shapes can be achieved, cutting machining of magnet complex parts is omitted, the production cost is greatly lowered, and resources aresaved.

A metal-graphite brush for supplying electricity to a coil wound around a core provided at a rotor of a motor includes a sintered material having pores at a surface of the sintered material and in the sintered material. The surface of the sintered material serves as a sliding surface sliding along a sliding surface of a commutator to which the coil is electrically connected for supplying electricity. The metal-graphite brush further includes an emulsion containing a liquid, which vaporizes corresponding to a temperature rise of the sliding surface while the sliding surface is sliding along the sliding surface of the commutator during an operation of the motor, and a solvent, which has a boiling point higher than that of the liquid, and into which the liquid is dispersed as liquid particles, in the pores.

This invention relates to a lubricating composition comprising a major amount of an oil of lubricating viscosity with an iodine number less than about 9, (A) one or more antioxidant, and (B) from about 0.01% to about 3% by weight of at least one dispersant or detergent, wherein the total amount of antioxidant is at least about 2% by weight. The additives are useful act controlling oxidation of lubricants. Further, these lubricants have reduced viscosity increase caused by oxidation, while maintaining favorable carbon / varnish ratings.

The present invention is directed to a method for melting scrap of an aluminum alloy containing lithium. The steps include providing scrap containing aluminum-lithium-type alloys, preparing an initial liquid metal bed of a first composition in a smelting oven, loading the scrap onto the initial liquid metal bed so as to create a floating layer of the scrap with a controlled thickness at the surface of the liquid metal bed, partially melting the floating layer via contact with the metal bed so as to obtain a liquid metal bath having a second composition, and removing the liquid metal from the second composition of the liquid metal bath. The method has technical and economic advantages. It does not require investment in a particular installation and it requires minimal use of expensive expendable materials such as inert gas, because the formation of a floating layer having a controlled thickness makes it possible to effectively protect the surface of the liquid metal from oxidation.

A lubricating composition for use in heavy duty diesel engines which is formulated to allow the use of organomolybdenum compounds but which overcomes the issue of Cu and / or Pb corrosion. The lubricant is characterized by having a synergistic additive composition comprising (A) a sulfur-free organo-molybdenum compound, (B) a sulfur-containing organo-molybdenum compound and (C) a triazole derivative prepared by reacting 1,2,4-triazole, a formaldehyde source and an amine; (A), (B) and (C) being present in an amount sufficient to allow the lubricating composition to pass the High Temperature Corrosion Bench Test ASTM D 6594 with respect to Cu and / or Pb corrosion.

A method of encapsulating a thermoelectric device and its associated thermoelectric elements in an inert atmosphere and a thermoelectric device fabricated by such method are described. These thermoelectric devices may be intended for use under conditions which would otherwise promote oxidation of the thermoelectric elements. The capsule is formed by securing a suitably-sized thin-walled strip of oxidation-resistant metal to the ceramic substrates which support the thermoelectric elements. The thin-walled metal strip is positioned to enclose the edges of the thermoelectric device and is secured to the substrates using gap-filling materials. The strip, substrates and gap-filling materials cooperatively encapsulate the thermoelectric elements and exclude oxygen and water vapor from atmospheric air so that the elements may be maintained in an inert, non-oxidizing environment.

The invention belongs to the field of rubber chemicals and discloses a rubber-metal bonding enhancer for a steel wire radial tyre. The enhancer is prepared from four kinds of metal salts of cobalt, nickel, copper and zinc; and the proportion of the metal salts by metal molar mass: cobalt: nickel: copper: zinc is (50% to 70%): (20% to 40%): (6% to 10%): (2% to 4%). The preparation method of the bonding enhancer comprises the steps of: using the four kinds of metal salts as starting materials to sequentially prepare alkali carbonate metal composite salt by a temperature gradient method and a concentration step method, prepare an intermediate by a continuous dehydration method and prepare low cobalt boroacylate metal composite salt by a boroacylate replacement reaction to obtain the bonding enhancer. In the invention, the proportion of the cobalt is regulated to 50% to 70% from 100% in a traditional technology; and the consumption of precious metal cobalt is reduced; the cost is reduced by 10% to 20%. The physical and chemical indexes and utilization property of the product of the invention are equivalent to those of a boroacylate cobalt product; and the drawing force and retention rate of an aged product are better than those of the boroacylate cobalt product.

An electrochromic device according to the present disclosure includes an electrochromic element that includes a first electrode, a second electrode, and an electrochromic layer disposed between the first electrode and the second electrode. The electrochromic layer contains an anodic electrochromic compound and an oxidizable substance. The oxidizable substance is a substance which substantially does not undergo a color change due to oxidation and whose oxidant is not reduced. An oxidation reaction of the oxidizable substance is less likely to occur than an oxidation reaction of the anodic electrochromic compound. A controller is configured to control oxidation of the oxidizable substance based on a charge balance of the electrochromic element.

The invention is directed to increasing the endurance of a tire by providing an oxidation shield strip located in the vicinity of a critical area of the tire. The oxidation shield strip acts as a local oxygen diffusion barrier.