Biocidal metallic compositions and films, and methods for making and adhering biocidal compositions and films to surfaces requiring continued protection without requiring frequent cleaning are disclosed. The biocidal compositions may include metals, such as copper or silver powder, which are applied to the exposed surface of a variety of different resins, glues, epoxies, solvents or other surface treatments to create a biocidal film over the surface of product substrates including metals, leathers, papers, plastics, cardstocks, and glass surfaces.

A manufacturing method of a multilayer shell-core composite structural component comprises the following procedures: (1) respectively preparing feeding material for injection forming of a core layer, a buffer layer and a shell layer, wherein the powders of feeding material of the core layer and the shell layer are selected from one or more of metallic powder, ceramic powder or toughened ceramic powder, and are different from each other, and the powder of feeding material of the buffer layer is gradient composite material powder; (2) layer by layer producing the blank of multilayer shell-core composite structural component by powder injection molding; (3) degreasing the blank; and (4) sintering the blank to obtain the multilayer shell-core composite structural component. The multilayer shell-core composite structural component has the advantages of high surface hardness, abrasion resistance, uniform thickness of the shell layer, stable and persistent performance.

A 3D printing device for producing a three-dimensional component form at least two different materials. The 3D printing device has both a spray-printing unit and an electron-beam and/or laser unit. To produce the three-dimensional component, the spray-printing unit is designed and set up to spray the at least two different materials, and the electron-beam and/or laser unit is designed and set up to join sprayed-on material integrally by fusing by means of an electron beam and/or by means of a laser beam of the electron-beam and/or laser unit.

A material and method are disclosed such that the material can be used to form functional metal pieces by producing an easily sintered layered body of dried metal paste. On a microstructural level, when dried, the metal paste creates a matrix of porous metal scaffold particles with infiltrant metal particles, which are positioned interstitially in the porous scaffold's interstitial voids. For this material to realize mechanical and processing benefits, the infiltrant particles are chosen such that they pack in the porous scaffold piece in a manner which does not significantly degrade the packing of the scaffold particles and so that they can also infiltrate the porous scaffold on heating. The method of using this paste provides a technique deposition/removal process.

A component can include a degradable portion that is degradable in an aqueous environment; and a non-degradable portion that is not degradable in the aqueous environment where the non-degradable portion can include polycrystalline diamond.

A method of: providing an emulsion having a zinc powder and a liquid phase; drying the emulsion to form a sponge; sintering the sponge in an inert atmosphere to form a sintered sponge; heating the sintered sponge in an oxidizing atmosphere to form an oxidized sponge having zinc oxide on the surface of the oxidized sponge; and heating the oxidized sponge in an inert atmosphere at above the melting point of the zinc. A method of: providing an emulsion comprising a zinc powder and a liquid phase; placing the emulsion into a mold, wherein the emulsion is in contact with a metal substrate; and drying the emulsion to form a sponge.

A method of pressure forming a brown part from metal and/or ceramic particle feedstocks includes: introducing into a mold cavity or extruder a first feedstock and one or more additional feedstocks or a green or brown state insert made from a feedstock, wherein the different feedstocks correspond to the different portions of the part; pressurizing the mold cavity or extruder to produce a preform having a plurality of portions corresponding to the first and one or more additional feedstocks, and debinding the preform. Micro voids and interstitial paths from the interior of the preform part to the exterior allow the escape of decomposing or subliming backbone component substantially without creating macro voids due to internal pressure. The large brown preform may then be sintered and subsequently thermomechanically processed to produce a net wrought microstructure and properties that are substantially free the interstitial spaces.

A metal composite comprises: a first matrix comprising magnesium, a magnesium alloy, or a combination thereof; a second matrix comprising aluminum, an aluminum alloy, steel, a zinc alloy, a tin alloy, or a combination comprising at least one of the foregoing; a corrosion reinforcement material; and a boundary layer disposed between the first matrix and the second matrix; wherein the boundary layer has a thickness of 10 nm to 200 μm.

A shaped charge liner may include an apex portion and a skirt portion extending from the apex portion. The skirt portion may include a body connected to the apex portion, a perimeter spaced apart from the apex portion, and a carbide layer extending between and spaced apart from the perimeter and the apex portion. A shaped charge for creating a perforation hole in a wellbore casing may include a shaped charge liner having at least one material having hardness that is greater than a corresponding hardness of the wellbore casing. The at least one material is configured to bond to at least one of an outer surface and an inner surface of the perforation hole upon detonation of the shaped charge and penetration of the casing by a perforation jet.

What is disclosed is an electrode material including a sintered body containing a heat resistant element and Cr and being infiltrated with a highly conductive material. A powder mixture of a heat resistant element powder and a Cr powder is subjected to a provisional sintering in advance, thereby causing solid phase diffusion of the heat resistant element and Cr. After a Mo—Cr solid solution obtained by the provisional sintering is pulverized, the pulverized Mo—Cr solid solution powder is molded and sintered. A sintered body obtained by sintering is subjected to a HIP treatment. The highly conductive metal is disposed on the sintered body after the HIP treatment, and infiltrated into the sintered body by heating at a predetermined temperature. By conducting the HIP treatment, the withstand voltage capability and current-interrupting capability of the electrode material are improved.