Methodologies, systems, and devices are provided for producing metal spheroidal powder products. By utilizing a microwave plasma, control over spheriodization and resulting microstructure can be tailored to meet desired demands.

Methodologies, systems, and devices are provided for producing metal spheroidal powder products. By utilizing a microwave plasma, control over spheriodization and resulting microstructure can be tailored to meet desired demands.

High strength precipitation hardening stainless steel alloy is disclosed. The steel alloy has a composition by weight %, about: 30.0% max nickel (Ni), 0.0 to 15.0% cobalt (Co), 25.0% max chromium (Cr), 5.0% max molybdenum (Mo), 5.0% max titanium (Ti), 5.0% max vanadium (V), about 0.5% max lanthanum (La) and/or cerium (Ce), and in balance iron (Fe) and inevitable impurities. The steel alloy provides a unique combination of corrosion resistance, strength and toughness and is a material for aircraft landing gears and structures.

This application relates to semiconductor manufacturing, and more particularly to an interconnect structure for semiconductors with an ultra-fine pitch and a forming method thereof. The forming method includes: preparing copper nanoparticles using a vapor deposition device, where coupling parameters of the vapor deposition device are adjusted to control an initial particle size of the copper nanoparticles; depositing the copper nanoparticles on a substrate; invertedly placing a chip with copper pillars as I/O ports on the substrate; and subjecting the chip and the substrate to hot-pressing sintering to enable the bonding.

A method of separating one or more elements from an alloy includes subjecting a metal alloy to a stimulus to form an enriched material including the one or more elements and to form a depleted material. The enriched material is enriched in the one or more elements compared to the alloy and the depleted material is depleted in the one or more elements compared to the alloy. The method also includes removing the enriched material and the depleted material from one another.

Fine particles that can be sintered and grow to 100 nm or larger without oxidation even when retained at a baking temperature in an oxygen-containing atmosphere and that can suppress oxidation in a long-term preservation in the air or other oxygen-containing atmospheres, a method of producing the fine particles, and a method of producing fine particles that can suppress oxidation in a collecting process after the production of the fine particles. A fine particle production method for producing fine particles using feedstock powder by means of a gas-phase process includes a step of producing fine particle bodies by converting the feedstock powder into a mixture in a gas phase state using a gas-phase process and cooling the mixture in a gas phase state with a quenching gas containing an inert gas and a hydrocarbon gas having 4 or less carbon atoms, and a step of supplying an organic acid to the produced fine particle bodies.

Provided is a fine particle production apparatus and a fine particle production method capable of easily obtaining surface treated fine particles. The fine particle production apparatus produces fine particles using feedstock by means of a gas-phase process. The apparatus includes a treatment section configured to transform the feedstock into a mixture in a gas phase state by means of the gas-phase process, a feedstock supply section configured to supply the feedstock to the treatment section, a cooling section configured to cool the mixture in a gas phase state in the treatment section using a quenching gas containing an inert gas, and a supply section configured to supply a surface treating agent to fine particle bodies in a temperature region in which the surface treating agent is not denatured, the fine particle bodies being produced by cooling the mixture in the gas phase state with the quenching gas.

Disclosed is a spherical powder, and a preparation method therefor including: placing an electrode and a workpiece at two electrodes of a power supply, adjusting a discharging gap between the electrode and workpiece by a motion control system to generate an arc plasma, when arc plasma acts on surfaces of the electrode and workpiece, the surfaces of the electrode and workpiece are melt to form a melting region, at the same time, introducing a fluid medium into the discharging gap, controlling a flow rate of the fluid medium and a relative rotation speed of the electrode or the workpiece, so as to change a working morphology of the arc plasma, such that a tiny explosion is generated in the melting region, crushing and throwing away a material located in the melting region, condensing the crushed molten material in the fluid medium and collecting a condensed fine spherical powder.

Disclosed is a spherical powder, and a preparation method therefor including: placing an electrode and a workpiece at two electrodes of a power supply, adjusting a discharging gap between the electrode and workpiece by a motion control system to generate an arc plasma, when arc plasma acts on surfaces of the electrode and workpiece, the surfaces of the electrode and workpiece are melt to form a melting region, at the same time, introducing a fluid medium into the discharging gap, controlling a flow rate of the fluid medium and a relative rotation speed of the electrode or the workpiece, so as to change a working morphology of the arc plasma, such that a tiny explosion is generated in the melting region, crushing and throwing away a material located in the melting region, condensing the crushed molten material in the fluid medium and collecting a condensed fine spherical powder.

A product includes a material having aluminum and at least one rare earth element (REE). The material includes the following microstructure features: at least 1 volume % particles of a phase of an aluminum-rare earth element alloy, the particles comprise at least 5 weight % of the at least one rare earth element, the particles have an average aspect ratio less than or equal to 5, and an average interparticle spacing between the particles is less than or equal to 1 μm. A method includes forming a base material, the base material having aluminum and at least one rare earth element (REE), and working the base material to form a product.