A long-lasting antibacterial core-shell agent, a method for preparing a long-lasting antibacterial agent and method for preparing a solid media utilizing a long-lasting antibacterial core-shell agent. The long-lasting antibacterial core-shell agent comprises an antibacterial core composed of an antibacterial metal powder, a poorly soluble metal salt and a metal oxide; and an outer shell composed of a porous oxide. The solid media prepared utilizing the long-lasting antibacterial core-shell agent has the ability to resist ultraviolet damage, inhibits oxygen oxidation, slowly releases metal ions and thereby exhibits long-term release of antibacterial ions and longitudinal antibacterial uniformity.

A long-lasting antibacterial core-shell agent, a method for preparing a long-lasting antibacterial agent and method for preparing a solid media utilizing a long-lasting antibacterial core-shell agent. The long-lasting antibacterial core-shell agent comprises an antibacterial core composed of an antibacterial metal powder, a poorly soluble metal salt and a metal oxide; and an outer shell composed of a porous oxide. The solid media prepared utilizing the long-lasting antibacterial core-shell agent has the ability to resist ultraviolet damage, inhibits oxygen oxidation, slowly releases metal ions and thereby exhibits long-term release of antibacterial ions and longitudinal antibacterial uniformity.

A method of manufacturing a multi-material tubular structure includes spinning a can, depositing a powdered material into the can and compacting the powdered material within the can to provide a tubular structure.

A method of manufacturing a multi-material tubular structure includes spinning a can, depositing a powdered material into the can and compacting the powdered material within the can to provide a tubular structure.

A solid-state additive manufacturing additive manufacturing system applicable to building up 3D structures, coating and functionalizing surfaces, joining structures, adding customized features to objects, compounding proprietary compositions and repairing various structures is disclosed. The solid-state additive manufacturing system enables deposition of different fillers, viz. metals, metal alloys, MMCs, polymers, plastics, composites, hybrids and gradient compositions, as well as controls the resulting deposit structures, e.g. specific nano-/micro-, gradient- and porous-material structures. The system accommodates various feeding-, spindle- and tool-designs for depositing different forms of filler materials, viz. rods, wires, granules, powders, powder-filled-tubes, scrap pieces or their combination, and a working platform with multiple access points. One or multiple motors, driving and monitoring units control the movement of the workpiece, spindle and tool and move the filler through the feeding system, which passageway is in communication with the passageways of the spindle and the tool.

A method for producing articles from iridium metal nanopowder. This invention relates to the sphere of powder metallurgy and may find application in the production of different articles from iridium. Technically, the object of the invention is development of a new technology. To this aim a method is proposed for the production of articles from iridium based on use of chemically pure metal of not less than 99.99 purity, produced by electron-beam remelting, characterized in that the required material is turned to nanopowder of less than 100 nm dispersity from which seamless articles of various configuration are molded by their compacting at room temperature followed by baking, with the resulting isotropic structure featuring 100-300 nm grain size and strength characteristics being improved by 200-300%.

A method for producing articles from iridium metal nanopowder. This invention relates to the sphere of powder metallurgy and may find application in the production of different articles from iridium. Technically, the object of the invention is development of a new technology. To this aim a method is proposed for the production of articles from iridium based on use of chemically pure metal of not less than 99.99 purity, produced by electron-beam remelting, characterized in that the required material is turned to nanopowder of less than 100 nm dispersity from which seamless articles of various configuration are molded by their compacting at room temperature followed by baking, with the resulting isotropic structure featuring 100-300 nm grain size and strength characteristics being improved by 200-300%.

A method for producing a green compact, the method including a charging step of charging a raw-material powder including iron-based particles into a cavity formed by a lower punch and a die that are arranged to be movable relative to each other, a pressurizing step of pressurizing the raw-material powder charged in the cavity by the lower punch and an upper punch in order to form a green compact, the upper punch being arranged to face the lower punch, and a drawing step of drawing the green compact from the cavity by a relative movement between the green compact and the die. The drawing step is conducted while vibrations are applied to the green compact for at least part of the period from the time just before the relative movement starts to the time at which the relative movement completes.

A method for producing a green compact, the method including a charging step of charging a raw-material powder including iron-based particles into a cavity formed by a lower punch and a die that are arranged to be movable relative to each other, a pressurizing step of pressurizing the raw-material powder charged in the cavity by the lower punch and an upper punch in order to form a green compact, the upper punch being arranged to face the lower punch, and a drawing step of drawing the green compact from the cavity by a relative movement between the green compact and the die. The drawing step is conducted while vibrations are applied to the green compact for at least part of the period from the time just before the relative movement starts to the time at which the relative movement completes.

A method loading powder into a mold can include immersing the mold comprising one or more microchannels into a suspension comprising the powder and a surfactant suspended in a dispersant, wherein the powder comprises particles having an average particle size of less than 100 m, wherein the mold is substantially entirely covered by the suspension; heating the suspension having the mold immersed therein under a temperature condition suitable to lower the stability of the particles of the powder in the suspension such that the particles settle out of solution and into the one or more microchannels; and applying an ultrasonic wave to the heated suspension to further settle the particles of the powder into the one or more microchannels thereby filling the one or more microchannels of the mold with the powder.