Methods for millling particles include exposing particles to microwave energy during milling. The methods reduce or eliminate the need for pre- and post-processing of reagents and products while minimizing waste associated with the slow kinetics of heat transfer in traditional resistive heating furnaces. Method of synthesizing particles include providing precursor particles, microwave susceptor media, and milling media in a reaction vessel and simultaneously rotating the reaction vessel while exposing the reaction vessel to microwaves. Apparatus for milling particles include a microwave housing defining a microwave enclosure; a microwave generator configured to generate and direct microwaves to the microwave enclosure; and a rotation shaft within the microwave enclosure, the rotation shaft connected or configured to be connected to a motor for rotation, wherein the rotation shaft is configured to be rotatably coupled, within the microwave enclosure, to a processing vessel.

The present invention relates to a method and an associated apparatus (1) for the recovery and regeneration of metal powder in EBM (Electron Beam Melting) applications. The method is of the type which envisages a step for recovery of weakly sintered powders inside a cleaning chamber (2) incorporating at least one compressed-air nozzle with supply, where necessary, of powder for sandblasting three-dimensional objects obtained by means of EBM sintering of the metal powders; according to the invention it is envisaged supplying into the cleaning chamber (2) metal powders having a predetermined low oxygen content and there is also a powder recirculating system (3) comprising at least one first buffer tank (9) inside which the regenerated powders are deposited for renewed supply of the aforementioned chamber (2).

Disclosed is a method of forming a treated material. The method includes providing a high-speed blender; adding a solvent and brass granules to the blender and blending at high speed until mixed; adding copper granules to the blender and mixing at high speed until mixed; adding carbon nanotubes and graphene to the blender and mixing until blended. The mixture of solvent, brass granules, copper granules, carbon granules, carbon nanotubes, and graphene are added to an additional mixture of brass and copper and mixed until all of the granules are uniformly saturated. The mixture is then dried to a powder. Thereafter, the dry powder may be added to ferrous or nonferrous metal(s) in a high temperature crucible and then heated until melted.

Silicone is placed between an upper die and an injection-pressing rubber-lid upper die, and the silicone injection passage is pressurized by the injection-pressing rubber-lid upper die. With this, the silicone is caused to flow into an injection port through the silicone injection passage. Then, sequentially through the injection port and the disc silicone-flow passage, the silicone is caused to flow toward an inner periphery of a silicone injection space. Further, the silicone flows between both circumferential sides of the silicone-flow deflection region. In this way, the silicone flows in a peculiar manner in conformity with a shape of the silicone-flow deflection region.

In the present invention, a fine silver particle has a particle diameter of 65-80 nm and has, on the surface of the particle, a thin film comprising a hydrocarbon compound. The fine silver particle has an exothermic peal temperature of 140-155 C. in differential thermal analysis. If d denotes the particle diameter after firing at a temperature of 100 C. for one hour and D denotes the particle diameter before firing, it is preferable for the fine silver particle to have a particle growth rate, as represented by (dD)/D (%), of 50% or higher.

In the present invention, a fine silver particle has a particle diameter of 65-80 nm and has, on the surface of the particle, a thin film comprising a hydrocarbon compound. The fine silver particle has an exothermic peal temperature of 140-155 C. in differential thermal analysis. If d denotes the particle diameter after firing at a temperature of 100 C. for one hour and D denotes the particle diameter before firing, it is preferable for the fine silver particle to have a particle growth rate, as represented by (dD)/D (%), of 50% or higher.

An apparatus and process for creating uniformly sized, spherical nanoparticles from a solid target. The solid target surface is ablated to create an ejecta event containing nanoparticles moving away from the surface. Ablation may be caused by laser or electrostatic discharge. At least one electromagnetic field is placed in front of the solid target surface being ablated. The electromagnetic field manipulates at least a portion of the nanoparticles as they move away from the target surface through the electromagnetic field to increase size and spherical shape uniformity of the nanoparticles. The manipulated nanoparticles are collected.

Disclosed herein is a nanoparticle generator, comprising a body defining an internal space, with an electric insulator inserted into the internal space from a side of the body; a heat-insulating tube, internally inserted into the body, wherein the electric insulator and a local heating unit which is mounted on the electric insulator are internally inserted into the heat-insulating tube along a central axis thereof; a first inlet, provided at a side of the body, for introducing external air into the heat-insulating tube; a second inlet, provided at a side of the body, for introducing external air between the heat-insulating tube and the body; and an outlet, provided at a side of the body, for evacuating the air introduced through the heat-insulating tube into the body.

A raw material for a magnet, which comprises Sm and Fe. A magnet is obtained by nitriding this raw material for a magnet. In particular, a raw material for a magnet comprises an SmFe binary alloy as a main component. An intensity ratio of an Sm.sub.2Fe.sub.17 (024) peak to an SmFe.sub.7 (110) peak is less than 0.001 as measured by an X-ray diffraction method.

A raw material for a magnet, which comprises Sm and Fe. A magnet is obtained by nitriding this raw material for a magnet. In particular, a raw material for a magnet comprises an SmFe binary alloy as a main component. An intensity ratio of an Sm.sub.2Fe.sub.17 (024) peak to an SmFe.sub.7 (110) peak is less than 0.001 as measured by an X-ray diffraction method.