Abstract:
An apparatus for increasing the bulk density of metal powder may include a sealed chamber, a nozzle, and a target. The sealed chamber may include an inert environment. The nozzle may be coupled to an inert gas source and may be configured to introduce raw metal powder into a flow of the inert gas for discharge as a cold spray mixture of the raw metal powder and the inert gas into the chamber. The target may be housed within the sealed chamber and may be configured to receive an impact of the cold spray mixture. The nozzle and the target may be configured to flatten the raw metal particles into flattened metal particles in response to the cold spray mixture impacting the target.
Abstract:
A novel class of reagents, useful for synthesis of elemental nanoparticles, includes at least one element, formally in oxidation state zero in complex with a hydride molecule. The reagents can optionally include an additional ligand incorporated into the complex. Elemental nanoparticles are synthesized by adding solvent to the reagent, optionally with a free ligand and/or a monoatomic cation.
Abstract:
A method for producing a metal powder includes maintaining molten reducing metal in a sealed reaction vessel that is substantially free of oxygen and water, establishing a vortex in the molten reducing metal, introducing a metal halide into the vortex so that the molten reducing metal is in a stoichiometric excess to the metal halide, thereby producing metal particles and salt, removing unreacted reducing metal, removing the salt, and recovering the metal powder. The molten reducing metal can be a Group I metal, a Group II metal, or aluminum.
Abstract:
The present invention relates to a method for manufacturing separation membrane for water treatment, separation membrane manufactured thereby, and a water treatment method using the separation membrane. More specifically, the present invention relates to: a method for manufacturing separation membrane for water treatment, made of electrically conductive metal or non-metal materials, which can enhance the membrane performance by reducing membrane contamination during water treatment and replace separation membrane made of polymer materials; separation membrane manufactured thereby; and a water treatment method using the separation membrane.
Abstract:
Method of manufacturing a reactive sintered magnetic article, a composite article comprising a mantle and at least one core and a laminate article comprising two or more composite articles are provided which each comprise (La1-aMa) (Fe1-b-c-Tb-Y-c)13-dXe, wherein 0≦a≦0.9, 0≦b≦0.2, 0.05≦c≦0.2, −1≦d≦+1, 0≦e≦3.
Abstract:
A water-atomized iron-based powder is provided that is pre-alloyed with 0.75-1.1% by weight of Ni, 0.75-1.1% by weight of Mo and up to 0.45% by weight of Mn, and further including 0.5-3.0%, preferably 0.5-2.5% and most preferably 0.5-2.0% by weight of Cu, and inevitable impurities, the balance being Fe. An alloyed iron-based powder composition including a water-atomized iron-based powder
Abstract:
A sintering apparatus (4) for sintering at least one workpiece (2), more particularly a dental workpiece, having a sintering chamber (18) for receiving the sintering workpiece (2) during sintering, wherein the sintering chamber (18) is delimited by a base surface (6) of the sintering apparatus (4) on which the workpiece can be placed during sintering, wherein the sintering apparatus (4) has at least one gas feed (5) for introducing protective gas into the sintering chamber (18), wherein the gas feed (5) is on the side of the base surface (6) that faces away from the sintering chamber (18) and the base surface (6) has at least one flow-through portion (14) which is permeable to the protective gas to allow the protective gas coming from the gas feed (5) to pass into the sintering chamber (18).
Abstract:
The invention concerns a method for producing three-dimensional objects (3) layer by layer using a powdery material (5) which can be solidified by irradiating it with a high-energy beam.
Abstract:
A process and materials are disclosed to enable the formation of metal powder-polymer/plastic preform articles by three dimensional printing a green state article, debinding the polymer/plastic from the metal powder, and sintering the article to a final shape.
Abstract:
The present invention relates to a method for producing diamond-metal composites comprising mixing diamond particles with metal-filler particles forming a diamond/metal-filler mixture, forming a green body of the diamond/metal-filler mixture, optionally green machining the green body to a work piece before or after pre-sintering by heating the green body to a temperature ≦500° C., infiltrating the green body or the work piece with one or more wetting elements or infiltrating the green body or the work piece with one or more wetting alloys, which infiltration step being carried out under vacuum or in an inert gas atmosphere at a pressure ≦200 Bar. The invention relates further to a green body, a diamond metal composite, and use of the diamond metal composite.