Abstract:
An electrode for the use of an advanced lithium battery is fabricated using three-dimensionally structured metal foam coated with an active material. The metal foam is porous metal foam that can be used as an anode current collector of a lithium-ion battery and is coated with an anode active material, such as tin, through a sonication-assisted electroless plating method. Additionally, the coated metal foam is heat-treated at an appropriate temperature in order to improve the integrity of the coating layer and hence, the cyclic performance of the lithium-ion battery.
Abstract:
An FePt-based sputtering target contains Fe, Pt, and a metal oxide, and further contains one or more kinds of metal elements other than Fe and Pt, wherein the FePt-based sputtering target has a structure in which an FePt-based alloy phase and a metal oxide phase containing unavoidable impurities are mutually dispersed, the FePt-based alloy phase containing Pt in an amount of 40 at % or more and less than 60 at % and the one or more kinds of metal elements in an amount of more than 0 at % and 20 at % or less with the balance being Fe and unavoidable impurities and with the total amount of Pt and the one or more kinds of metal elements being 60 at % or less, and wherein the metal oxide is contained in an amount of 20 vol % or more and 40 vol % or less based on the total amount of the target.
Abstract:
A combustion device includes a combustion chamber having an exhaust gas opening. The combustion chamber has a first region having a plurality of circular-segment-shaped cross-sections, which are parallel to each other and each have a circle centre point. A connection of the circle centre points lies substantially on an axis. A gas supply line is connected to the combustion chamber in such a way that a discharge point is formed, that the combustion chamber has a mixing region in the region of the discharge point for mixing gas supplied via the gas supply line with gas rotating in the combustion chamber, and that the discharge point is arranged on a bottom side of the combustion chamber in an operating position, wherein gas supplied via the gas supply line flows against the first region tangentially from below.
Abstract:
The present technology provides an illustrative method for preparing shaped nanoparticles. The method includes passing a metal vapor to a shaping apparatus and condensing the metal vapor within the shaping apparatus to form selectively-shaped metal nanoparticles. The method may also include forming the metal vapor by heating a bulk metal. In an embodiment, the shaping apparatus comprises a mesh separator that include a plurality of nano-sized, square-shaped pores or a plurality of shaping cups that includes a plurality of recesses.
Abstract:
A method of producing a porous aluminum is provided. The method includes preparing a powder mixture of at least one of Al and an Al alloy and carbon nanoparticles and melting the powder mixture. In addition, the method includes oxidizing the melt using oxygen bubbling and solidifying the melt.
Abstract:
A method of fabricating a metal cellular structure includes providing a sol-gel that is a colloid dispersed in a solvent, the colloid including metal-containing regions bound together by polymeric ligands, removing the solvent from the gel using supercritical drying to produce a dry gel of the metal-containing regions bound together by the polymeric ligands, and thermally converting the dry gel to a cellular structure with a coating in at least one step using phase separation of at least two insoluble elements. Also disclosed is a metal cellular structure including interconnected metal ligaments having a cellular structure and a carbon-containing coating around the metal ligaments.
Abstract:
The present invention provides nanometer-size spherical particles. Each of the particles is made of at least one selected from the group consisting of a metal, an alloy, and a metal compound. The particles include one or both of a polycrystalline region and a single-crystalline region. The particles have a particle size of less than 1 μm; and a sphericity of −10% to +10%.
Abstract:
A method for gas atomization of oxygen-reactive reactive metals and alloys wherein the atomized particles are exposed as they solidify and cool in a very short time to multiple gaseous reactive agents for the in-situ formation of a protective reaction film on the atomized particles. The present invention is especially useful for making highly pyrophoric reactive metal or alloy atomized powders, such as atomized magnesium and magnesium alloy powders. The gaseous reactive species (agents) are introduced into the atomization spray chamber at locations downstream of a gas atomizing nozzle as determined by the desired powder or particle temperature for the reactions and the desired thickness of the reaction film.
Abstract:
A process for making a diffusion hardened medical implant having a porous surface is disclosed. The medical implant is made by a hot isostatic pressing process which simultaneously forms that porous surface and the diffusion hardened surface.