Abstract: A method of coating metallic powder particles includes disposing an amount of metallic powder particles in a fluidizing reactor and removing moisture adhered to the powder particles within the reactor with a working gas at an elevated temperature for a predetermined time. The method further includes coating the powder particles in the reactor with silicon present within the precursor gas at an elevated temperature for a predetermined time and purging the precursor gas from the reactor using the working gas.

Abstract: A method for making a plurality of metallic nanowires includes combining a metallic precursor with a solvent to form a metallic precursor solution. A quantity of oxalic acid is added to the metallic precursor solution to form a reduction solution. A plurality of nanowires are precipitated out from the reduction solution.

Abstract: A conductive polymer corrosion protective composite is provided which may be used as a coating for imparting corrosion protection to structures such as turbine engine components. The composite comprises an organic-inorganic component and corrosion inhibitive pigments comprising an anodic corrosion inhibitor and a cathodic corrosion inhibitor. The anodic corrosion inhibitor may be selected from the group consisting of compounds of vanadium, molybdenum, tungsten, and mixtures thereof. The cathodic corrosion inhibitor may be selected from the group consisting of cerium, neodymium, praseodymium, and mixtures thereof.

Abstract: A method and system for coating metallic powder particles is provided. The method includes: disposing an amount of metallic powder particulates within a fluidizing reactor; removing moisture adhered to the powder particles disposed within the reactor using a working gas; coating the powder particles disposed within the reactor using a precursor gas; and purging the precursor gas from the reactor using the working gas.

Abstract: A method for preparing an alloy nanocellular foam includes at least partially coating a nanocellular precursor into a multiple composition nanoparticle precursor and converting the multiple composition nanoparticle precursor into an alloy via a diffusion process.

Abstract: An electrical device includes an electromagnetic component configured to generate a magnetic flux. The electromagnetic component includes a soft magnetically-conductive material configured to pass magnetic flux therethrough along a flux path. The soft magnetically-conductive material includes at least one grain oriented portion having metal grains that are oriented parallel with respect to the magnetic flux.

Abstract: An additive manufacturing system includes an energy gun having a plurality of energy source devices each emitting an energy beam. A primary beam melts a selected region of a substrate into a melt pool and at least one secondary beam heat-conditions the substrate proximate the melt pool to reduce workpiece internal stress and/or enhance micro-structure composition of the workpiece.

Abstract: A method of coating an iron-based article includes a first heating step of heating a substrate that includes an iron-based material in the presence of an aluminum source material and halide diffusion activator. The heating is conducted in a substantially non-oxidizing environment, to cause the formation of an aluminum-rich layer in the iron-based material. In a second heating step, the substrate that has the aluminum-rich layer is heated in an oxidizing environment to oxidize the aluminum in the aluminum-rich layer.

Abstract: A feedstock for an additive manufacturing process includes a pre-ceramic polymer intermixed with a base material. A method of additive manufacturing includes melting and pyrolizing a feedstock containing metal and a pre-ceramic polymer. An article of manufacture includes an additive manufacturing component including a pyrolized feedstock.

Abstract: A solid-state method for forming an alloy includes providing a powder that has heterogeneous particles with a ratio, by weight, of an amount of nickel to an amount of a metal. The ratio is selected in accordance with a compositional ratio that can substantially bear a nickel intermetallic precipitate of the nickel and the metal. The heterogeneous particles are then consolidated and thermally treated to interdiffuse the nickel and the metal. The interdiffused nickel and metal are then precipitation treated to precipitate the nickel intermetallic.

Abstract: A method of coating metallic powder particles includes disposing an amount of metallic powder particles in a fluidizing reactor and removing moisture adhered to the powder particles within the reactor with a working gas at an elevated temperature for a predetermined time. The method further includes coating the powder particles in the reactor with silicon present within the precursor gas at an elevated temperature for a predetermined time and purging the precursor gas from the reactor using the working gas.

Abstract: A method for processing a powder material includes cleaning surfaces of a powder material that has spherical metal particles, coating the cleaned surfaces with an organic bonding agent, mixing the coated particles with a dispersion that contains ceramic nanoparticles, drying the mixture to remove a carrier of the dispersion and deposit the ceramic nanoparticles with a spaced-apart distribution onto the organic bonding agent on the surfaces of the particles, and thermally removing the organic bonding agent to attach the ceramic nanoparticles to the surface of the particles.

Abstract: A method of producing a ceramic material includes heating solid silicon monoxide to provide gaseous silicon monoxide, and exposing a structure having a free-carbon-containing material to the gaseous silicon monoxide to convert free carbon of the free-carbon-containing material to silicon carbide. Also disclosed is an intermediate article that includes a solid structure having free carbon and a solid, in-situ source of silicon monoxide gas. Also disclosed is a composition that includes a polymeric carrier phase and particulate of solid silicon monoxide dispersed in the polymeric carrier phase.

Abstract: A method and system for coating metallic powder particles is provided. The method includes: disposing an amount of metallic powder particulates within a fluidizing reactor; removing moisture adhered to the powder particles disposed within the reactor using a working gas; coating the powder particles disposed within the reactor using a precursor gas; and purging the precursor gas from the reactor using the working gas.

Abstract: A process for coating an article includes the steps of contacting an article with a first solution to produce a coated article, the first solution includes a solvent and at least one non-conductive material comprising at least one oxide of a metal; contacting with a second solution the coated article having at least one surface with a non-conductive material layer, the second solution includes a solvent and at least one conductive material comprising at least one of the foregoing: graphite, metals, conductive ceramics, semi-conductive ceramics, intermetallic compounds, and mixtures thereof; and drying the coated article having at least one surface with a non-conductive material layer having the at least one conductive material in contact with at least one surface of the non-conductive material layer and the at least one surface of the article.

Abstract: A method of fabricating an article includes providing an arrangement of loose nanowires and bonding the loose nanowires together into a unitary cellular structure.

Abstract: A heat exchanger includes a plurality of fins and a plurality of tubes passing a fluid therethrough, extending through the plurality of fins and radially expanded into an interference fit therewith. At least one tube of the plurality of tubes includes an outer diameter, an inner diameter, and a plurality of ridges extending from the inner diameter inwardly into an interior of the tube. A tube internal surface area per unit of length of the tube multiplied by the ratio of the outer diameter and tube wall thickness is equal to or greater than about 30.0.

Abstract: A conductive polymer corrosion protective composite is provided which may be used as a coating for imparting corrosion protection to structures such as turbine engine components. The composite comprises an organic-inorganic component and corrosion inhibitive pigments comprising an anodic corrosion inhibitor and a cathodic corrosion inhibitor. The anodic corrosion inhibitor may be selected from the group consisting of compounds of vanadium, molybdenum, tungsten, and mixtures thereof. The cathodic corrosion inhibitor may be selected from the group consisting of cerium, neodymium, praseodymium, and mixtures thereof.

Abstract: A method of coating an iron-based article includes a first heating step of heating a substrate that includes an iron-based material in the presence of an aluminum source material and halide diffusion activator. The heating is conducted in a substantially non-oxidizing environment, to cause the formation of an aluminum-rich layer in the iron-based material. In a second heating step, the substrate that has the aluminum-rich layer is heated in an oxidizing environment to oxidize the aluminum in the aluminum-rich layer.

Abstract: A system and method satisfies temperature and pressure requirements of solid oxide fuel cell system in a manner that increases the overall efficiency and decreases the overall weight of system. The system and method include a secondary blower for boosting air stream pressure level sufficient for operation of a reformer that is designed to minimize pressure drop; an integrated heat exchanger for recovering heat from exhaust and comprising multiple flow fields for ensuring inlet temperature requirements of a solid oxide fuel cell are met; and a thermal enclosure for separating hot zone components from cool zone components for increasing thermal efficiency of the system and better thermal management.