The invention relates to a method for producing a composite material consisting of a metal and ceramic alloy, comprising steps of: producing a mixture of metal powder and ceramic powder, the particle size of the metal powder being micrometric and the particle size of the ceramic powder being nanometric; and exposing said mixture to a focused energy source that selectively fuses part of a bed of said powder mixture.

Disclosed is a conductive ink composition and a manufacturing method thereof. The composition includes about 50 to about 99 wt % copper nanoparticles and about 1 to about 50 wt % tin. Copper nanoparticles are atomized and suspended in a tin bath, wherein the copper nanoparticles are evenly dispersed within the bath through sonification. The composition is cooled, extracted, and formed into a filament for use as a conductive ink. The ink has a resistivity of about 46.2×E−9 Ω*m to about 742.5×E−9 Ω*m. Once in filament form, the tin-copper mix will be viable for material extrusion, thus allowing for a lower cost, electrically conductive traces to be used in additive manufacturing.

Provided is a metal paste for joints, containing: metal particles; and linear or branched monovalent aliphatic alcohol having 1 to 20 carbon atoms, in which the metal particles include sub-micro copper particles having a volume average particle diameter of 0.12 μm to 0.8 μM.

Graphite-containing brass alloy billets having less than 0.25 wt. % lead and a method of manufacturing relating thereto are provided. The method includes forming a brass powder and mixing the brass powder with graphite and one or more binders. The brass powder contains copper and zinc and may be formed using water atomization. The brass-powder mixture is compacted to form an initial billet. The initial billet may be subjected to one or more heating treatments. A first heating treatment may be used to remove the one or more binders. An optional second heating treatment may be used to deoxidize the binder-free billet. A third heating treatment may sinter the compact to form the workable graphite-containing brass alloy billet.

Methods are disclosed for producing product particles having a uniform size using a microwave plasma process. More particularly, methods of the present technology are used to manufacture product particles having a core at least partially surrounded by a shell. The core and shell of the product particles are chemically distinct. Methods of the present technology occur within a plasma chamber of a microwave plasma reactor and a microwave formed plasma is utilized to vaporize core precursor material.

To provide a method for producing surface-modified metal oxide fine particles, which can produce surface-modified metal oxide fine particles having excellent dispersion stability in dispersion liquids having various compositions; a method for producing improved metal oxide fine particles, suitable as a method for producing metal oxide fine particles to be surface-modified in production of the surface-modified metal oxide fine particles; surface-modified metal oxide fine particles which can be produced by the method for producing surface-modified metal oxide fine particles; and a metal oxide fine particle dispersion liquid including the surface-modified metal oxide fine particles. Surface-modified metal oxide fine particles are produced by a method including coating at least a part of surfaces of metal oxide fine particles with a carboxylic acid compound having a certain structure substituted with an amino group which may be cyclic, and/or carboxylate thereof.

The invention provides a polyetheretherketone (PEEK) composite and a method of preparing same. The PEEK composite is prepared from 55-90 parts by mass of PEEK, 5-30 parts by mass zinc aluminum (ZA) alloy, 5-15 parts by mass graphite, 0.3-1 parts by mass graphene oxide (GO) and a processing additive. The PEEK composite is prepared by the following steps: putting the ZA alloy into an aqueous solution of a quaternary ammonium salt surfactant, ultrasonically dispersing, filtering, washing and drying; dissolving the GO in deionized water, dispersing the ZA alloy in deionized water, and adding a GO solution dropwise to a ZA alloy dispersion to obtain a GO/ZA alloy complex; mixing the PEEK, the GO/ZA alloy complex, the graphite and the processing additive, and drying at 100-120° C. for 3-4 h; and mixing in a mixer, and carrying out compression molding at 380-400° C.

Disclosed is a conductive ink composition and a manufacturing method thereof. The composition includes about 50 to about 99 wt % copper nanoparticles and about 1 to about 50 wt % tin. Copper nanoparticles are atomized and suspended in a tin bath, wherein the copper nanoparticles are evenly dispersed within the bath through sonification. The composition is cooled, extracted, and formed into a filament for use as a conductive ink. The ink has a resistivity of about 46.2×E-9 Ω*m to about 742.5×E-9 Ω*m. Once in filament form, the tin-copper mix will be viable for material extrusion, thus allowing for a lower cost, electrically conductive traces to be used in additive manufacturing.

Provided is an object forming liquid containing a resin containing at least one structural unit selected from the group consisting of a structural unit represented by a predetermined structural formula (1) and a structural unit represented by a predetermined structural formula (2), and an organic solvent, and substantially free of water. The object forming liquid is applied to a layer of a powder containing metal particles.

Liquid metal-based powder materials may include oxides. More specifically, the liquid metal-based powder materials may include a plurality of particles formed from a combination of a liquid metal and a dopant material. Each of the plurality of particles may have a predetermined size and having a composition that includes oxide. More specifically, each of the plurality of particles may include a core portion including the combination of the liquid metal and the dopant material, and oxide. Additionally, each of the plurality of particles may also include an outer portion surrounding the core portion. The outer portion may be formed as an oxide film. Furthermore, each of the plurality of particles may also include a plurality of supplemental nanoparticles formed within the core portion, and included in the combination of liquid metal, dopant material, and oxide.