A method for forming a metallization structure is provided, including forming a metallic powder layer on a substrate; performing a first laser sintering on a first portion of the metallic powder layer to form a metal layer; and in the presence of oxygen, performing a second laser sintering on a second portion of the metallic powder layer to form a metal oxide layer to serve as a first dielectric layer.

A porous aluminum body having high porosity and a manufacturing method therefor are provided, wherein the porous aluminum body can be manufactured by continuous manufacturing steps. In the present invention, this porous aluminum body includes a plurality of aluminum fibers connected to each other. The aluminum fibers each have a plurality of columnar protrusions formed at intervals on an outer peripheral surface of the aluminum fibers, the columnar protrusions protruding outward from the outer peripheral surface. Adjacent aluminum fibers are integrated with the aluminum fibers and the columnar protrusions.

A method for preserving the shape of an object during sintering includes filling at least one volume defined by a surface of the object with a plurality of balls, sintering the object together with the balls and separating the object from the balls post sintering. The balls have a diameter of 0.5 mm-12 mm.

A method of additively manufacturing is provided. The method may include successively depositing and fusing together layers of a superalloy powder mixture comprised of a base material powder and a eutectic powder, to build up an additive portion, which eutectic powder has a solidus temperature lower than the solidus temperature of the base material powder. The method may also include heat treating the additive portion at a temperature greater than 1200° C. to heal cracks and/or fill pores and to homogenize the alloy of which the additive portion is comprised. The additive portion alloy has a chemistry defined by the superalloy powder mixture. The base material powder may be formed of a nickel-base superalloy with an aluminum content by weight of at least 1.5%. The eutectic powder may be a nickel-base alloy including by weight about 6% to about 11% chromium, about 5% to about 9% titanium, and about 9% to about 13% zirconium, with balance nickel as its primary components.

Provided are metal particles for an adhesive paste, a solder paste composition including the same, and a method of preparing the metal particles for an adhesive paste. The metal particles for an adhesive paste may include a core including one or more metal materials; and a shell arranged on part or an entirety of the core and including one or more metal materials. The metal material of the core may have a melting point higher than that of the metal material of the shell. An intermetallic compound is capable of being formed between the metal material of the core and the metal material of the shell. A ratio (D90/D10) of the 90% cumulative mass particle size distribution (D90 size) to the 10% cumulative mass particle size distribution (D10 size) in a particle size distribution of the metal particles may be 1.22 or less.

A component includes a sub-region, where the component is produced at least in the sub-region by an additive manufacturing process. The sub-region is produced from an aluminum alloy which has 12% by weight to 40% by weight silicon, 0.3% by weight to 4% by weight copper, 0.2% by weight to 0.7% by weight magnesium, at most 1% by weight iron, at most 0.5% by weight zirconium, and a remainder which includes aluminum and further accompanying elements and/or production-related impurities that each have a mass fraction of at most 0.3 percent individually and that in total have a mass fraction of at most 1.5 percent.

The disclosure describes an example technique that includes cold spraying first particles and second particles of a metal alloy on at least a portion of a surface of a substrate to form a deposit on the surface of the substrate. The first and second particles have been subjected to different heat treatments prior to cold spraying. Cold spraying involves accelerating the first particles and the second particles toward the surface of the substrate without melting or creating other thermally induced changes to a microstructure of the first and second particles. As a result, the first particles form a first, heat-treated component and the second particles form a second non-heat-treated or differently-heat-treated component, and the particles and substrate are not subject to a heat treatment during the cold spray process that may further modify their thermomechanical properties.

A low melt superalloy powder mixture is provided for use with additive manufacturing or welding metal components or portions thereof. The low melt superalloy powder may include by weight about 9.5% to about 10.5% chromium, about 2.9% to about 3.4% cobalt, about 8.0% to about 9.0% aluminum, about 3.8% to about 4.3% tungsten, about 0.8% to about 1.2% molybdenum, about 10% to about 20% tantalum, about 3% to about 12% hafnium, and at least 40% nickel.

A method for preparing a shear-assisted extruded material from a powder billet is provided, the method comprising providing a billet of material in substantially powder form; applying both axial and rotational pressure to the material to deform at least some of the contacted material; and extruding the material to form an extruded material. A method for preparing shear-assisted extruded material is provided, the method comprising applying both axial and rotational pressure to stock material to form an extruded material at a rate between 2 and 13 m/min. A method for preparing shear-assisted extruded material is provided. The method comprises applying both axial and rotational pressure to stock material to form an extruded material; and aging the extruded material for less than 3 hours. A method for preparing shear-assisted extruded material is provided. The method comprises providing a stock material for shear-assisted extrusion; and applying both axial and rotational force to the stock material to form an extruded material, wherein the axial force does not decrease during the extrusion.

Graphene material-metal nanocomposites having a metal core with one or more graphene material layers disposed on the metal core. The nanocomposites may be formed by contacting metal nanowires and one or more graphene material and/or graphene material precursor in a dispersion. The nanocomposites may be used for form inks for coating or printing conductive elements or as conductors in various articles of manufacture. An article of manufacture may be an electrical device or an electronic device.