This invention aims at providing a carbon-coated metal powder having few impurities, a narrower particle size distribution, and sintering properties particularly suitable as a conductive powder of a conductive paste for forming internal conductors in a ceramic multilayer electronic component obtained by co-firing multilayered ceramic sheets and internal conductor layers; a conductive paste containing the carbon-coated metal powder; a multilayer electronic component using the conductive paste; and a method for manufacturing the carbon-coated metal powder. The carbon-coated metal powder has specific properties in TMA or ESCA measurements. The carbon-coated metal powder can be obtained by melting and vaporizing a metallic raw material in a reaction vessel, conveying the generated metal vapor into a cooling tube and rapidly cooling the metal vapor by endothermically decomposing a carbon source supplied into the cooling tube, and forming a carbon coating film on metal nuclei surfaces in parallel with generation of the metal nuclei.

A process comprising providing a metallic first powder having a plurality of first particles. The process includes adding a second material to the first powder, the second material having a plurality of second particles. The process includes combining the first powder with the second material to form a modified powder including modified powder particles having an interior portion containing an interior composition, and an outer surface portion with an outer composition different from the interior composition.

Quantum dots and methods of making quantum dots are provided.

Quantum dot semiconductor nanoparticle compositions that incorporate ions such as zinc, aluminum, calcium, or magnesium into the quantum dot core have been found to be more stable to Ostwald ripening. A core-shell quantum dot may have a core of a semiconductor material that includes indium, magnesium, and phosphorus ions. Ions such as zinc, calcium, and/or aluminum may be included in addition to, or in place of, magnesium. The core may further include other ions, such as selenium, and/or sulfur. The core may be coated with one (or more) shells of semiconductor material. Example shell semiconductor materials include semiconductors containing zinc, sulfur, selenium, iron and/or oxygen ions.

A cermet contains hard phase particles containing Ti and a binding phase containing at least one of Ni and Co. 70% or more of the hard phase particles have a cored structure containing a core and a peripheral portion around the core. The core is composed mainly of at least one of Ti carbide, Ti nitride, and Ti carbonitride. The peripheral portion is composed mainly of a Ti composite compound containing Ti and at least one selected from W, Mo, Ta, Nb, and Cr. The core has an average particle size α, the peripheral portion has an average particle size β, and α and β satisfy 1.1≦β/α≦1.7. The hard phase particles in the cermet have an average particle size of more than 1.0 μm.

Nanoparticles for use in the treatment of a well have a magnetic core of iron, nickel or cobalt or an alloy thereof; a carbon shell encapsulating the magnetic core; at least one organic functional group on the surface of the carbon shell through covalent bonding; and a coating of amorphous carbon nitride encapsulating the functionalized carbon shell. The nanoparticles may be used to identify fluids produced from the reservoir, identify the zone within the reservoir from which recovered fluid is produced, in water flooding to determine water breakthrough in the production well and to identify those injection wells from which breakthrough water originates.

Aluminum-boron nitride nanotube composites and methods of making thereof are disclosed herein. In at least one specific embodiment, the method can include: at least partially coating boron nitride nanotubes with aluminum to make an aluminum-boron nitride nanotube layered structure, where the at least partially coating is performed by sputter deposition, and where the boron nitride nanotubes have a length of about 100 μm to about 300 μm; sintering the aluminum-boron nitride nanotube layered structure to make an aluminum-boron nitride nanotube pellet, where the sintering is performed by spark plasma sintering; and rolling the aluminum-boron nitride nanotube pellet to make the aluminum-boron nitride nanotube composite.

A lithium ion battery having a cathode and an anode, the cathode includes a material having an olivine or spinel structure, the anode includes a coating of a composite lithium powder coated with a complex lithium salt, such as LiPF.sub.6, LiBF.sub.4, LiClO.sub.4, LiAsF.sub.6, LiF.sub.3SO.sub.3, and mixtures thereof. A separator is disposed between the anode and the cathode, and a non-aqueous electrolyte solution in contact with the cathode, the anode, and the separator. The anode can include a carbon material. A layer of a composite lithium powder coated with a complex lithium salt can be disposed between the anode and the separator.

Provided is a composition including a plurality of multi-metallic nanoparticles each consisting essentially of a core including at least one first metal (Me1) and a continuous shell including atoms of at least one second metal (Me2). Optionally, the continuous shell of Me2 atoms protects the Me1 atoms from oxidation at all temperatures less than 150° C.

A method for gas atomization of a titanium alloy, nickel alloy, or other alumina (Al.sub.2O.sub.3)-forming alloy wherein the atomized particles are exposed as they solidify and cool in a very short time to multiple gaseous reactive agents for the in-situ formation of a passivation reaction film on the atomized particles wherein the reaction film retains a precursor halogen alloying element that is subsequently introduced into a microstructure formed by subsequent thermally processing of the atomized particles to improve oxidation resistance.