1439 results about "Beryllium" patented technology

High strength, thermoplastically processable (TPF) amorphous alloys composed of Beryllium and at least one ETM and at least one LTM, as well as methods of processing such alloys are provided. The TPF alloys of the invention demonstrate good glass forming ability, low viscosity in the supercooled liquid region (SCLR), a low processing temperature, and a long processing time at that temperature before crystallization.

An x-ray source comprises a structured anode that has a thin top layer made of the desired target material and a thick bottom layer made of low atomic number and low density materials with good thermal properties. In one example, the anode comprises a layer of copper with an optimal thickness deposited on a layer of beryllium or diamond substrate. This structured target design allows for the use of efficient high energy electrons for generation of characteristic x-rays per unit energy deposited in the top layer and the use of the bottom layer as a thermal sink. This anode design can be applied to substantially increase the brightness of stationary, rotating anode or other electron bombardment-based sources where brightness is defined as number of x-rays per unit area and unit solid angle emitted by a source and is a key figure of merit parameter for a source.

Integrated circuits, including field emission devices, have a resistor element of amorphous SixC1-x wherein 0<x<1, and wherein the SixC1-x incorporates at least one impurity selected from the group consisting of hydrogen, halogens, nitrogen, oxygen, sulphur, selenium, transition metals, boron, aluminum, phosphorus, gallium, arsenic, lithium, beryllium, sodium and magnesium.

The variable hydraulic press and distillation reservoir process scientific formula non ionic or electrolyte mechanically refined and nanoparticle dispersion preform slurry extrusion with or without ionic suspension Preform slurry high wear-heat resistant parts electronic composite coils, windings, annealing, drawn, spun, coils, windings, wire, woven textile mesh, shielding, parts brushes, inductors, antinode couplers, electric rheostats, starters, motors, alternators, generators, ionic suspension enhanced composite coils, composite windings, spun wound coils and windings beryllium Be4, magnesium Mg12, copper Cu29 and carbon nanofoam C6, electronic parts capacitors, ionic suspension circuit battery cells, electronic parts rheostats, resistors, transformers, transducers, rectifiers, power supplies, or heat sinks Preform slurry high wear-heat resistant parts aerospace, automotive, and transportation brake calipers, rotors, pads, and bushings Preform slurry non ionic or electrolyte mechanically refined and nanoparticle high wear-heat resistant parts precision casting molds 2.5 phase die cast molding Building Materials fine concrete, mortar, brick, and tiles.

The invention relates to the field of alloy material, and discloses a high-strength die-casting aluminum alloy for pressure casting. The aluminum alloy is Al-Mg-Si-Mn series, and comprises 4.5-6.3 wt% of magnesium, 1.4-2.8 wt% of silicon, 0.4-1.0 wt% of manganese, no more than 0.22 wt% of iron, no more than 0.20 wt% of titanium, no more than 0.05 wt% of copper, no more than 0.0045 wt% of beryllium, no more than 0.30 wt% of unavoidable impurity, and the balance of aluminum. The die-casting aluminum alloy provided by the invention has excellent casting property and good mechanical property, and the tensile strength and the yield strength are greatly promoted; the die-casting aluminum alloy has large elongation percentage and high rigidity, and also has good corrosion resistance without solid solution heat treatment; and the high-strength die-casting aluminum alloy for pressure casting can be used for safety spare parts on passenger cars, and satisfies the requirement of light weight development for passenger cars.

Methods and apparatus are disclosed for remediating metal contaminants using hydrocarbons which stimulate the growth of hydrocarbon-utilizing bacteria. The metal contaminants may include heavy metals such as arsenic, antimony, beryllium, cadmium, chromium, copper, lead, mercury, iron, manganese, magnesium, radium, nickel, selenium, silver, thallium and zinc. The hydrocarbon may include alkanes, alkenes, alkynes, poly(alkene)s, poly(alkyne)s, aromatic hydrocarbons, aromatic hydrocarbon polymers and aliphatic hydrocarbons. Butane is a particularly suitable hydrocarbon which stimulates the growth of butane-utilizing bacteria. Remediation may occur in-situ or ex-situ, and may occur under aerobic, anaerobic or dual aerobic/anaerobic conditions. Examples of applications include the remediation of heavy metals, the remediation of arsenic impacted surface water, groundwater and/or soil, the remediation of acid mine drainage, and the treatment of spent metal plating solutions.

A fuel composition of the present invention exhibits minimized hydrolysis and increased fuel stability, even after extended storage at 65° F. for 6-9 months. The composition, which is preferably not strongly alkaline (3.0 to 10.5), is more preferably weakly alkaline to mildly acidic (4.5 to 8.5) and most preferably slightly acidic (6.3 to 6.8), includes a lower dialkyl carbonate, a combustion improving amount of at least one high heating combustible compound containing at least one element selected from the group consisting of aluminum, boron, bromine, bismuth, beryllium, calcium, cesium, chromium, cobalt, copper, francium, gallium, germanium, iodine, iron, indium, lithium, magnesium, manganese, molybdenum, nickel, niobium, nitrogen, phosphorus, potassium, palladium, rubidium, sodium, tin, zinc, praseodymium, rhenium, silicon, vanadium, or mixture, and a hydrocarbon base fuel.

The invention discloses a formula of a copper nickel tin alloy strip and a production process. The formula of the alloy strip comprises the following components in percentage by weight: 19.0 to 21.0 percent of Ni, 4.0 to 6.0 percent of Sn, 0.01 to 0.05 percent of Zr and the balance of Cu. The production process comprises the following steps of: proportioning, smelting, bath analysis, deoxidation, converter heat preservation, horizontal continuous casting, solution treatment, surface milling, rough rolling, thickness longitudinal shearing, strong convection bright annealing, cleaning, precision rolling, multistage ageing, bending, straightening and slitting. The production process has no pollution, the production flow is short, the alloy strip blank has small specification size and high quality, cold rolling is directly performed, a hot rolling process is saved, and the production efficiency is improved; the obtained copper nickel tin alloy has the properties of high strength, high elongation, high hardness, high elasticity, stress corrosion resistance and the like, the performance of the copper nickel tin alloy is close to that of beryllium bronze, and the copper nickel tin alloy can partially replace the beryllium bronze to manufacture elastic elements.

A reactor system produces plasma rocket thrust using alpha-initiated atomic fuel pellets without the need for a critical mass of fissionable material. The fuel pellets include an outer layer reactive material to alpha particles to generate neutrons (e.g., porous lead or beryllium), an under-layer of fissionable material (e.g., thorium or enriched uranium), and an optional inner core of fusion material (e.g., heavy water ice, boron hydride). The pellets are injected one at a time into a charged reaction chamber containing a set of alpha beam channels, possibly doubling as ion accelerators, all directed toward a common point. Alpha particles converging on each successive pellet initiate an atomic reaction in the fissionable under-layer, via a neutron cascade from the pellet outer layer, producing plasma that is confined within the chamber. This may be enhanced by atomic fusion of the optional inner core. The resulting high-energy plasma creates electrostatic pressure on the chamber and is allowed to exit the chamber through a port. An ion accelerator at the exhaust port of the chamber accelerates outgoing plasma ions, possibly with added reaction mass, to generate the rocket thrust. An electric circuit that includes the charged chamber may collect the electrons in the plasma to help power the ion accelerator(s).

The present invention relates to creep-resistant magnesium-based alloys with low susceptibility to hot tearing, and with improved ductility, impact strength and fracture toughness, and corrosion resistance. The alloys contain at least 96 wt % magnesium, 1.5 to 1.9 wt % neodymium, 0.10 to 0.30 wt % yttrium, 0.35 to 0.70 wt % zirconium, 0.05 to 0.35 wt % zinc, 0.01 to 0.10 wt % calcium, 0.01 to 0.15 wt % strontium, and 0.0000 to 0.0005 wt % beryllium, and they are suitable for low pressure and gravity castings. Articles, that are castings of the alloys, are suitable for applications at temperatures as high as 175-250° C.

Disclosed are a high strength hot-dip galvanized or galvannealed steel sheet, which has improved press formability and plating adhesion and is useful as a member for automobile, building, electric or other members, and a process for producing the same.

This high strength hot-dip galvanized or galvannealed steel sheet comprises: (a) a steel sheet substrate comprising, by weight, carbon (C): 0.05 to 0.2%, silicon (Si): 0.2 to 2.0%, manganese (Mn): 0.2 to 2.5%, and aluminum (Al): 0.01 to 1.5%, the silicon and the aluminum having a mutual relationship represented by formula 0.4(%)≦Si+0.8 Al (%)≦2.0(%), the steel sheet substrate further comprising at least one member selected from the group consisting of (i) 0.003 to 1.0% of tin (Sn), (ii) 0.005 to 1.0% in total of at least one member selected from antimony (Sb), bismuth (Bi), and selenium (Se), (iii) 0.005 to 1.0% in total of at least one member selected from beryllium (Be), magnesium (Mg), calcium (Ca), and zirconium (Zr), and (iv) 0.005 to 1.0% in total of at least one member selected from scandium (Sc), yttrium (Y), lanthanum (La), and cerium (Ce), with the balance consisting of iron (Fe) and unavoidable impurities, the volume fraction of retained austenite in the steel structure being 2 to 20%; and (b) a zinc (Zn) coating layer provided on said steel sheet substrate.

The invention discloses a conductive paste for a positive electrode of a crystal silicon solar cell and a preparation method of the conductive paste. The paste is prepared by mixing and grinding conductive metal powder, alloy powder which is formed by two or more elements selected from silver, zinc, tin, silicon, copper, magnesium, germanium, gold, beryllium, aluminum, indium, cerium, lanthanum, gallium, bismuth, and nickel, an organic carrier, and one or a mixture of transition metal oxide, lead oxide, stannic oxide, zinc oxide, organic compounds of zinc, and organic compounds of titanium according to a certain weight part. In the conductive paste, glass powder is not used as an inorganic binder, the problems of low electrical properties, low weldability and welding resistance, silicon chip bending and the like caused by adding the glass powder into the conductive paste for the positive electrode of thecrystal silicon solar cell in the prior art are solved, the positive electrode of the crystal silicon solar cell prepared from the paste has firm adhesive force, high ohmic contact, high weldability and high welding resistance, and the solar cell has a high electrical property and low deformability.

The invention relates to a preparation method of a bonded gold-silver alloy wire, and belongs to the technical field of bonded wire processing processes. The bonded gold-silver alloy wire comprises the following metal materials by weight: 20-30% of silver, 5-1000 ppm of palladium, 5-1000 ppm of calcium, 5-1000 ppm of beryllium, 5-1000 ppm of cerium and the balance of gold; the preparation method comprises the following steps: 1), preparing materials; 2) smelting an alloy ingot; 3) pulling and casting an alloy rod; 4) wire-drawing; 5) annealing; 6) coiling; and 7) packaging. The preparation method of the bonded gold-silver alloy wire, provided by the invention, has the advantages of reasonable and standard technical design, and simple operation, the produced bonded gold-silver alloy wire has the advantages of strong conductivity, stable chemical performance, good oxidation resistance, flowability and plasticity, higher breaking force and better elongation, and moderate cost, and requirements of semiconductor package industry and LED (Light Emitting Diode) illumination technology on the performances of the bonded gold-silver alloy wire can be completely satisfied.

An improved photodiode and method of producing an improved photodiode comprising doping an InAs layer of an InAs/GaSb region situated on top of an InAs/GaSb:Be superlattice and below an InAs:Si/GaSb regions such that the quantum efficiency of the photodiode increases and dominant dark current mechanisms change from diffusion to band-to-band tunneling as the InAs layer is doped with Beryllium.

The invention relates to bonding alloy filamentary silver and a preparation method thereof, and belongs to the technical field of processing of a bonding wire. The bonding alloy filamentary silver comprises the following metal materials by mass ratio: less than 90wt% of silver, 3.0-10.0wt% of gold, and 3.0-8.0wt% of palladium; and the bonding alloy filamentary silver also comprises at least two of following metals of 10-100ppm of calcium, 4-10ppm of beryllium, 10-100ppm of cerium, and 50-500ppm of copper. The preparation method comprises the steps of 1) preparing materials; 2) smelting mother alloy; 3) continuously casting an alloy rod; 4) roughly working, intermediately drawing, and finely drawing; 5) carrying out middle annealing; 6) ultra-finely drawing; 7) finally annealing; 8) winding; and 9) packaging. The technology disclosed by the invention is specified and reasonable in design, and simple and convenient to operate; the obtained product is strong in electrical conductivity, has certain inoxidizability, good plasticity, high rupturing load, good elongation and low cost, can meet the demands of the semiconductor encapsulation industry and a light-emitting diode (LED) illumination technology on performance of the bonding alloy filamentary silver, and can be used as a substitute for a bonding alloy wire.

A persistent p-type group II-VI semiconductor material is disclosed. The group II-VI semiconductor includes atoms of group II elements, atoms of group VI elements, and one or more p-type dopants. The p-type dopant concentration is sufficient to render the group II-VI semiconductor material in a single crystal form. The semiconductor resistivity is less than about 0.5 ohm·cm, and the carrier mobility is greater than about 0.1 cm²/V·s. Group II elements include zinc, cadmium, the alkaline earth metals such as beryllium, magnesium calcium, strontium, and barium, and mixtures thereof. Group VI elements include oxygen, sulfur, selenium, tellurium, and mixtures thereof. P-type dopants include, but are not limited to, nitrogen, phosphorus, arsenic, antimony, bismuth, copper, chalcogenides of the foregoing, and mixtures thereof.

The invention relates to a method of in-situ preparing TiB2 granule strengthening Mg-based composite material in the composite material technical field. The steps are that: powder of K2TiF6, KBF4 and Na3AlF6 are mixed uniformly and then put into a kiln for drying, thus obtaining waterless powder. Aluminum ingot is melted in a resistance furnace with heat preservation and uniformity; the waterless powder after dried is added to the melting Al melt liquid by batch and then is stirred with a graphite disc, and scum on the surface of the melt liquid is removed after stirred and stewed, thus obtaining TiB2-Al intermediate alloy; magnesium alloy is smelted with the protection of SF6 and CO2 mixing gas, and flame retardant element beryllium is added; the TiB2-Al intermediate alloy is added into the magnesium alloy melting solution slowly, stirred, stewed and cast. The technology of the invention is comparatively simple, has low cost, and the density of TiB2/Mg composite material is between 1.8-2.0g/cm<3> and tensile strength thereof is increased by more than 60 percent than base alloy.

The invention discloses a methanation catalyst and a preparation method thereof. The methanation catalyst comprises the following components: a) nickel oxide, wherein nickel content is 5-50wt%; b) manganese oxide, wherein manganese content is 0.1-15wt%; c) at least one of oxides of beryllium, manganese, calcium, strontium, barium, lanthanum and cerium, wherein metal content is 0.5-20wt%; the components a) and b) are distributed within the range from the surface of carrier particles to a position 1/2 radius away from the center, and the component c) is distributed into the whole carrier particles. The preparation method disclosed by the invention comprises the following steps of: 1) mutually dissolving nickel salt and/or manganese salt with organic acid, preparing salt of the component c) into aqueous solution; and 2) dipping supported components nickel, manganese and the component c), wherein the component c) is independently supported, and baking and sintering decomposition treatment are carried out after supporting every time. The catalyst disclosed by the invention can maintain better catalytic activity and stability in a wider temperature range and has good catalytic effect.